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56
projects/CountDown/TrumpCountdown.ino Normal file
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/* SevSeg Counter Example
Copyright 2017 Dean Reading
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
This example demonstrates a very simple use of the SevSeg library with a 4
digit display. It displays a counter that counts up, showing deci-seconds.
*/
#include "SevSeg.h"
SevSeg sevseg; //Instantiate a seven segment controller object
void setup() {
byte numDigits = 4;
byte digitPins[] = {2, 3, 4, 5};
byte segmentPins[] = {6, 7, 8, 9, 10, 11, 12, 13};
bool resistorsOnSegments = false; // 'false' means resistors are on digit pins
byte hardwareConfig = COMMON_CATHODE; // See README.md for options
bool updateWithDelays = false; // Default. Recommended
bool leadingZeros = false; // Use 'true' if you'd like to keep the leading zeros
sevseg.begin(hardwareConfig, numDigits, digitPins, segmentPins, resistorsOnSegments, updateWithDelays, leadingZeros);
sevseg.setBrightness(10);
pinMode(A5, INPUT_PULLUP);
pinMode(A1, INPUT_PULLUP);
// Serial.begin(9600); // debugging
}
float lastReset = 0.0;
void loop() {
unsigned long runMillis= millis();
float actualDays = runMillis/86400000.0;
float days = actualDays - lastReset;
sevseg.setNumber(days, 3);
sevseg.refreshDisplay(); // Must run repeatedly
// Serial.println(actualDays,5); // debugging
// Serial.println(digitalRead(A1)); // debugging
if(!digitalRead(A5)){
lastReset = actualDays;
}
if(!digitalRead(A1)){
lastReset = actualDays;
}
}
/// END ///

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projects/CountUp/TrumpCountUp.ino Normal file
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/* SevSeg Counter Example
Copyright 2017 Dean Reading
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
This example demonstrates a very simple use of the SevSeg library with a 4
digit display. It displays a counter that counts up, showing deci-seconds.
*/
#include "SevSeg.h"
SevSeg sevseg; //Instantiate a seven segment controller object
void setup() {
byte numDigits = 4;
byte digitPins[] = {2, 3, 4, 5};
byte segmentPins[] = {6, 7, 8, 9, 10, 11, 12, 13};
bool resistorsOnSegments = false; // 'false' means resistors are on digit pins
byte hardwareConfig = COMMON_CATHODE; // See README.md for options
bool updateWithDelays = false; // Default. Recommended
bool leadingZeros = false; // Use 'true' if you'd like to keep the leading zeros
sevseg.begin(hardwareConfig, numDigits, digitPins, segmentPins, resistorsOnSegments, updateWithDelays, leadingZeros);
sevseg.setBrightness(10);
pinMode(A5, INPUT_PULLUP);
pinMode(A1, INPUT_PULLUP);
// Serial.begin(9600); // debugging
}
int decPlaces = 3;
float lastReset = 0; // optional button reset - orange wire connected to A1, or programmable button on A5
void loop() {
unsigned long runMillis= millis();
float actualDays = runMillis/86400000.0;
float days = actualDays - lastReset;
sevseg.setNumber(days, decPlaces);
sevseg.refreshDisplay(); // Must run repeatedly
// Serial.println(actualDays,5); // debugging
// Serial.println(digitalRead(A1)); // debugging
if(!digitalRead(A1)){lastReset -= 0.001;}
// if(!digitalRead(A5)){lastReset = actualDays;}
// program A5 as decimal place changer
if(!digitalRead(A5)){
// if(decPlaces == 2){decPlaces = 3;}
// if(decPlaces == 3){decPlaces = 2;}
decPlaces = (decPlaces + 1)%2 + 2;
delay(250);
}
}
/// END ///

162
projects/Workstation/Workstation.ino Normal file
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//YWROBOT
//Compatible with the Arduino IDE 1.0
//Library version:1.1
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <TM1638.h>
LiquidCrystal_I2C lcd(0x27,20,4); // set the LCD address to 0x27 for a 16 chars and 2 line display
TM1638 module(3, 2, 4);
#define NO_MODULES 1
TM1638* modules[NO_MODULES] = {
&module
};
byte modes[NO_MODULES];
unsigned long trump_reset;
unsigned long startTime;
unsigned long study_reset;
const int buttondelay = 150; // millis delay for button bounceback
const int backlight_pin = 7;
const int rPin = 10; // RGB pins
const int gPin = 9;
const int bPin = 8;
int rval = 0;
int gval = 0;
int bval = 0;
bool backlight_status = 1;
int daysSinceLastReset = 0;
int studySessions = 0;
void update(TM1638* module, byte* mode) {
byte buttons = module->getButtons();
unsigned long runningSecs = (millis() - startTime) / 1000;
float studyMins = (millis() - study_reset) / (1000.0*60);
float trumpDays = (millis() - trump_reset) / (1000.0*60*60*24);
if(module->getButtons() == 128 ){
backlight_status = !backlight_status;
digitalWrite(backlight_pin, backlight_status);
delay(buttondelay);
// module->clearDisplay();
}
// button pressed - change mode
if (buttons != 0) {
*mode = buttons;
}
// STUDY TIMER ON LCD
lcd.setCursor(6,3);
lcd.print(int(studyMins));
lcd.setCursor(3,3);
lcd.print(studySessions);
lcd.setCursor(0,3);
lcd.print(daysSinceLastReset);
module->setLEDs(*mode);
switch (*mode) {
case 1 << 0: // STUDY TIMER SUMMARY
char s[8];
studySessions = int(studyMins/90);
daysSinceLastReset = studySessions%16;
sprintf(s, "%2d.%2d.%2d", daysSinceLastReset, studySessions, int(studyMins)%90 );
module->setDisplayToString(s);
break;
case 1 << 1:
module->setDisplayToDecNumber(10000*studyMins, 1 << 4, false);
break;
case 1 << 2:
module->setDisplayToDecNumber(1000000*trumpDays, 1 << 6, false);
break;
case 1 << 3:
module->setDisplayToDecNumber(runningSecs, 1 << 5, false);
break;
case 1 << 4: // Button 5
module->clearDisplay();
module->clearDisplayDigit((runningSecs - 1) % 8, 0);
module->setDisplayDigit(runningSecs % 8, runningSecs % 8, 0);
break;
case 1 << 5: // reset study timer
study_reset = millis();
*mode = 1 << 1;
delay(buttondelay);
module->clearDisplay();
break;
case 1 << 6: // reset trump timer
trump_reset = millis();
*mode = 1 << 2;
delay(buttondelay);
module->clearDisplay();
break;
case 1 << 7: // Button 8, reset backlight
module->clearDisplay();
break;
case 65:
module->setDisplayToError();
break;
}
}
void setup()
{
for (int i = 0; i < NO_MODULES; i++) {
modules[i]->setupDisplay(true, 7);
modes[i] = 0;
}
startTime = millis();
study_reset = millis();
trump_reset = millis();
lcd.init(); // initialize the lcd
pinMode(backlight_pin, OUTPUT);
digitalWrite(backlight_pin, backlight_status);
// Print a message to the LCD.
lcd.backlight();
lcd.setCursor(2,0);
lcd.print("ACTION EXPRESSES");
lcd.setCursor(6,1);
lcd.print("PRIORITY.");
lcd.setCursor(15,2);
lcd.print("ABK");
}
void loop()
{
for (int i = 0; i < NO_MODULES; i++) {
update(modules[i], &modes[i]);
}
// RGB LED
rval = max( rval + rand()%3 - 1, 0); // markov chain
gval = max( gval + rand()%3 - 1, 0);
bval = max( bval + rand()%3 - 1, 0);
rval = min(rval, 255);
gval = min(gval, 255);
bval = min(bval, 255);
lcd.setCursor(10,2);
lcd.print(rval);
digitalWrite(rPin, 0.6*rval);
lcd.setCursor(5,2);
lcd.print(gval);
digitalWrite(gPin, 0.3*gval);
lcd.setCursor(0,2);
digitalWrite(bPin, 0.1*bval);
lcd.print(bval);
}

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projects/_4to7pins/_4to7pins.ino Normal file
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/*
This Arduino code for "4-digit-7-segment-led-display" (KYX-5461AS).
* This code can display one Number in all 4 digit!
* This code can display 4 Numbers each on in specific digit
* This code can also make a Number Countdown (Timers).
author : Oussama Amri (@amriunix)
website : ithepro.com
*/
//display pins
int segA = 5; // >> 11
int segB = 13; // >> 7
int segC = 10; // >> 4
int segD = 8; // >> 2
int segE = 7; // >> 1
int segF = 4; // >> 10
int segG = 11; // >> 5
int segPt = 9; // >> 3
//------------//
//display digit
int d1 = 6; // >> 12
int d2 = 3; // >> 9
int d3 = 2; // >> 8
int d4 = 12; // >> 6
//------------//
int delayTime = 5000; //delayTime <Don't change it, if you don't know where is it!>
int mydelay = 3000; // 50 is about one second, 3000 a minute
int i=0;
//=============================================//
//init all pin used
void setup() {
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);
pinMode(6, OUTPUT);
pinMode(7, OUTPUT);
pinMode(8, OUTPUT);
pinMode(9, OUTPUT);
pinMode(10, OUTPUT);
pinMode(11, OUTPUT);
pinMode(12, OUTPUT);
pinMode(13, OUTPUT);
}
//=============================================//
void loop() {
downup(0,20,9,0); // numbers above 19 display as blank.
//all(8);
//writeN(1,9,0,4);
}
//=============================================//
//Write a Number - writeN(1,9,9,0) -> 1990
void writeN(int a,int b,int c,int d){
selectDwriteL(1,a);
selectDwriteL(2,b);
selectDwriteL(3,c);
selectDwriteL(4,d);
}
//=============================================//
//Make a Number Number Countdown (Timers).
void downup(int a,int b,int c,int d){
while (a != -1) {
while(b != -1){
while(c != -1){
while (d != -1) {
while (i<mydelay) { // i here is like a timer ! because we can't use delay function
selectDwriteL(1,a);
selectDwriteL(2,b);
selectDwriteL(3,c);
selectDwriteL(4,d);
i++;
}
i=0;
d--;
}
d=9;
c--;
}
c=9;
a++; // iterate the first digit to count up while the last two digits count down.
//b--; // this uncommented leaves the second digit blank
}
a=9;
//a++;
//a--;
}
}
//=============================================//
//Make a Number Number Countdown (Timers).
void down(int a,int b,int c,int d){
while (a != -1) {
while(b != -1){
while(c != -1){
while (d != -1) {
while (i<mydelay) { // i here is like a timer ! because we can't use delay function
selectDwriteL(1,a);
selectDwriteL(2,b);
selectDwriteL(3,c);
selectDwriteL(4,d);
i++;
}
i=0;
d--;
}
d=9;
c--;
}
c=9;
b--;
}
b=9;
a--;
}
}
//=============================================//
//Select Wich Digit (selectD) is going to Display (writeL)
void selectDwriteL(int d,int l){
switch (d) { // choose a digit
case 0: digitalWrite(d1, LOW); //case 0 - All ON
digitalWrite(d2, LOW);
digitalWrite(d3, LOW);
digitalWrite(d4, LOW);
break;
case 1: digitalWrite(d1, LOW);//case 1 - Digit Number 1
digitalWrite(d2, HIGH);
digitalWrite(d3, HIGH);
digitalWrite(d4, HIGH);
break;
case 2: digitalWrite(d1, HIGH);//case 1 - Digit Number 2
digitalWrite(d2, LOW);
digitalWrite(d3, HIGH);
digitalWrite(d4, HIGH);
break;
case 3: digitalWrite(d1, HIGH);//case 1 - Digit Number 3
digitalWrite(d2, HIGH);
digitalWrite(d3, LOW);
digitalWrite(d4, HIGH);
break;
case 4: digitalWrite(d1, HIGH);//case 1 - Digit Number 4
digitalWrite(d2, HIGH);
digitalWrite(d3, HIGH);
digitalWrite(d4, LOW);
break;
}
switch (l) { // choose a Number
case 0: zero();
break;
case 1: one();
break;
case 2: two();
break;
case 3: three();
break;
case 4: four();
break;
case 5: five();
break;
case 6: six();
break;
case 7: seven();
break;
case 8: eight();
break;
case 9: nine();
break;
case 10: point(); // print a Point
break;
case 11: one(); digitalWrite(segPt, HIGH);
break;
case 12: two(); digitalWrite(segPt, HIGH);
break;
case 13: three(); digitalWrite(segPt, HIGH);
break;
case 14: four(); digitalWrite(segPt, HIGH);
break;
case 15: five(); digitalWrite(segPt, HIGH);
break;
case 16: six(); digitalWrite(segPt, HIGH);
break;
case 17: seven(); digitalWrite(segPt, HIGH);
break;
case 18: eight(); digitalWrite(segPt, HIGH);
break;
case 19: nine(); digitalWrite(segPt, HIGH);
break;
default: none(); // make all them off !
break;
}
delayMicroseconds(delayTime); // delayTime for nice display of the Number !
}
//=============================================//
//shown one Number in the 4 Digit
void all(int n){
selectDwriteL(0,n);
}
//=============================================//
void zero(){
digitalWrite(segA, HIGH);
digitalWrite(segB, HIGH);
digitalWrite(segC, HIGH);
digitalWrite(segD, HIGH);
digitalWrite(segE, HIGH);
digitalWrite(segF, HIGH);
digitalWrite(segG, LOW);
digitalWrite(segPt, LOW);
}
//=============================================//
void one(){
digitalWrite(segA, LOW);
digitalWrite(segB, HIGH);
digitalWrite(segC, HIGH);
digitalWrite(segD, LOW);
digitalWrite(segE, LOW);
digitalWrite(segF, LOW);
digitalWrite(segG, LOW);
digitalWrite(segPt, LOW);
}
//=============================================//
void two(){
digitalWrite(segA, HIGH);
digitalWrite(segB, HIGH);
digitalWrite(segC, LOW);
digitalWrite(segD, HIGH);
digitalWrite(segE, HIGH);
digitalWrite(segF, LOW);
digitalWrite(segG, HIGH);
digitalWrite(segPt, LOW);
}
//=============================================//
void three(){
digitalWrite(segA, HIGH);
digitalWrite(segB, HIGH);
digitalWrite(segC, HIGH);
digitalWrite(segD, HIGH);
digitalWrite(segE, LOW);
digitalWrite(segF, LOW);
digitalWrite(segG, HIGH);
digitalWrite(segPt, LOW);
}
//=============================================//
void four(){
digitalWrite(segA, LOW);
digitalWrite(segB, HIGH);
digitalWrite(segC, HIGH);
digitalWrite(segD, LOW);
digitalWrite(segE, LOW);
digitalWrite(segF, HIGH);
digitalWrite(segG, HIGH);
digitalWrite(segPt, LOW);
}
//=============================================//
void five(){
digitalWrite(segA, HIGH);
digitalWrite(segB, LOW);
digitalWrite(segC, HIGH);
digitalWrite(segD, HIGH);
digitalWrite(segE, LOW);
digitalWrite(segF, HIGH);
digitalWrite(segG, HIGH);
digitalWrite(segPt, LOW);
}
//=============================================//
void six(){
digitalWrite(segA, HIGH);
digitalWrite(segB, LOW);
digitalWrite(segC, HIGH);
digitalWrite(segD, HIGH);
digitalWrite(segE, HIGH);
digitalWrite(segF, HIGH);
digitalWrite(segG, HIGH);
digitalWrite(segPt, LOW);
}
//=============================================//
void seven(){
digitalWrite(segA, HIGH);
digitalWrite(segB, HIGH);
digitalWrite(segC, HIGH);
digitalWrite(segD, LOW);
digitalWrite(segE, LOW);
digitalWrite(segF, LOW);
digitalWrite(segG, LOW);
digitalWrite(segPt, LOW);
}
//=============================================//
void eight(){
digitalWrite(segA, HIGH);
digitalWrite(segB, HIGH);
digitalWrite(segC, HIGH);
digitalWrite(segD, HIGH);
digitalWrite(segE, HIGH);
digitalWrite(segF, HIGH);
digitalWrite(segG, HIGH);
digitalWrite(segPt, LOW);
}
//=============================================//
void nine(){
digitalWrite(segA, HIGH);
digitalWrite(segB, HIGH);
digitalWrite(segC, HIGH);
digitalWrite(segD, HIGH);
digitalWrite(segE, LOW);
digitalWrite(segF, HIGH);
digitalWrite(segG, HIGH);
digitalWrite(segPt, LOW);
}
//=============================================//
void point(){
digitalWrite(segA, LOW);
digitalWrite(segB, LOW);
digitalWrite(segC, LOW);
digitalWrite(segD, LOW);
digitalWrite(segE, LOW);
digitalWrite(segF, LOW);
digitalWrite(segG, LOW);
digitalWrite(segPt, HIGH);
}
//=============================================//
void none(){
digitalWrite(segA, LOW);
digitalWrite(segB, LOW);
digitalWrite(segC, LOW);
digitalWrite(segD, LOW);
digitalWrite(segE, LOW);
digitalWrite(segF, LOW);
digitalWrite(segG, LOW);
digitalWrite(segPt, LOW);
}

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#include "/Users/Imogen/Documents/Arduino/libraries/IRremote/IRremote.h"
#include "/Users/Imogen/Documents/Arduino/libraries/IRremote/IRremote.cpp"
// PIN FOR RECEIVER
int receiver = 3; // Signal Pin of IR receiver to Arduino Digital Pin 11
/*-----( Declare objects )-----*/
IRrecv irrecv(receiver); // create instance of 'irrecv'
decode_results results; // create instance of 'decode_results'
/*-----( Function )-----*/
void translateIR() // takes action based on IR code received
// describing Remote IR codes
{
switch (results.value)
{
case 0xFFA25D: Serial.println("POWER"); off(); break;
case 0xFFE21D: Serial.println("FUNC/STOP"); break;
case 0xFF629D: Serial.println("VOL+"); break;
case 0xFF22DD: Serial.println("FAST BACK"); break;
case 0xFF02FD: Serial.println("PAUSE"); break;
case 0xFFC23D: Serial.println("FAST FORWARD"); break;
case 0xFFE01F: Serial.println("DOWN"); break;
case 0xFFA857: Serial.println("VOL-"); break;
case 0xFF906F: Serial.println("UP"); break;
case 0xFF9867: Serial.println("EQ"); downup(6, 9, 0); off(); break;
case 0xFFB04F: Serial.println("ST/REPT"); downup(0, 9, 0); off(); break;
case 0xFF6897: Serial.println("0"); all(0); break;
case 0xFF30CF: Serial.println("1"); all(1); break;
case 0xFF18E7: Serial.println("2"); all(2); break;
case 0xFF7A85: Serial.println("3"); all(3); break;
case 0xFF10EF: Serial.println("4"); all(4); break;
case 0xFF38C7: Serial.println("5"); all(5); break;
case 0xFF5AA5: Serial.println("6"); all(6); break;
case 0xFF42BD: Serial.println("7"); all(7); break;
case 0xFF4AB5: Serial.println("8"); all(8); break;
case 0xFF52AD: Serial.println("9"); all(9); break;
case 0xFFFFFFFF: Serial.println(" REPEAT"); break;
default:
Serial.println(" other button ");
}// End Case
delay(1000); // Do not get immediate repeat
} //END translateIR
///////////////////////////////////////////////
//display pins
int segA = 5; // >> 11
int segB = 13; // >> 7
int segC = 10; // >> 4
int segD = 8; // >> 2
int segE = 7; // >> 1
int segF = 4; // >> 10
int segG = 11; // >> 5
int segPt = 9; // >> 3
//------------//
//display digit
int d1 = 6; // >> 12
int d2 = 3; // >> 9
int d3 = 2; // >> 8
int d4 = 12; // >> 6
//------------//
int delayTime = 5000; //delayTime <Don't change it, if you don't know where is it!>
int mydelay = 3000; // 50 is about one second, 3000 a minute
int i = 0;
//=============================================//
//init all pin used
void setup() {
Serial.begin(9600);
Serial.println("IR Receiver Button Decode - Initializing...");
irrecv.enableIRIn(); // Start the receiver
pinMode(2, OUTPUT);
// pinMode(3, OUTPUT); // reserved for IR input
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);
pinMode(6, OUTPUT);
pinMode(7, OUTPUT);
pinMode(8, OUTPUT);
pinMode(9, OUTPUT);
pinMode(10, OUTPUT);
pinMode(11, OUTPUT);
pinMode(12, OUTPUT);
pinMode(13, OUTPUT);
}
//=======================================================================================//
//void loop() {
//downup(0,20,9,0); // numbers above 19 display as blank.
////all(8);
////writeN(1,9,0,4);
//}
void loop() /*----( LOOP: RUNS CONSTANTLY )----*/
{
if (irrecv.decode(&results)) // have we received an IR signal?
{
// Serial.println(results.value); // for debugging
translateIR();
irrecv.resume(); // receive the next value
}
}/* --(end main loop )-- */
//=======================================================================================//
//Write a Number - writeN(1,9,9,0) -> 1990
void writeN(int a, int b, int c, int d) {
selectDwriteL(1, a);
selectDwriteL(2, b);
selectDwriteL(3, c);
selectDwriteL(4, d);
}
//=============================================//
//Make a Number Number Countdown (Timers).
void downup(int A, int C, int D) {
irrecv.resume();
int a=0;
int c, d;
bool FLAG = 0;
while (a <= A) {
c = C;
d = D;
while (c != -1) {
while (d != -1) {
while (i < mydelay) { // i here is like a timer ! because we can't use delay function
selectDwriteL(1, a);
selectDwriteL(3, c);
selectDwriteL(4, d);
if (irrecv.decode(&results)) // have we received an IR signal?
{
// if(results.value == 16753245){
translateIR();
FLAG = 1;
// break;
irrecv.resume(); // receive the next value
// }
}
i++;
if(FLAG){d=0;a=A;c=0;i=mydelay;}
}
i = 0;
d--;
}
d = 9;
c--;
}
// c = 9; // third digit
a++; // iterate the first digit to count up while the last two digits count down.
//b--; // this uncommented leaves the second digit blank
}
}
//=============================================//
//Make a Number Number Countdown (Timers).
void down(int a, int b, int c, int d) {
while (a != -1) {
while (b != -1) {
while (c != -1) {
while (d != -1) {
while (i < mydelay) { // i here is like a timer ! because we can't use delay function
selectDwriteL(1, a);
selectDwriteL(2, b);
selectDwriteL(3, c);
selectDwriteL(4, d);
i++;
}
i = 0;
d--;
}
d = 9;
c--;
}
c = 9;
b--;
}
b = 9;
a--;
}
}
//=============================================//
//Select Which Digit (selectD) is going to Display (writeL)
void selectDwriteL(int d, int l) {
switch (d) { // choose a digit
case 0: digitalWrite(d1, LOW); //case 0 - All ON
digitalWrite(d2, LOW);
digitalWrite(d3, LOW);
digitalWrite(d4, LOW);
break;
case 1: digitalWrite(d1, LOW);//case 1 - Digit Number 1
digitalWrite(d2, HIGH);
digitalWrite(d3, HIGH);
digitalWrite(d4, HIGH);
break;
case 2: digitalWrite(d1, HIGH);//case 1 - Digit Number 2
digitalWrite(d2, LOW);
digitalWrite(d3, HIGH);
digitalWrite(d4, HIGH);
break;
case 3: digitalWrite(d1, HIGH);//case 1 - Digit Number 3
digitalWrite(d2, HIGH);
digitalWrite(d3, LOW);
digitalWrite(d4, HIGH);
break;
case 4: digitalWrite(d1, HIGH);//case 1 - Digit Number 4
digitalWrite(d2, HIGH);
digitalWrite(d3, HIGH);
digitalWrite(d4, LOW);
break;
case 5: digitalWrite(d1, HIGH); //case 0 - All ON
digitalWrite(d2, HIGH);
digitalWrite(d3, HIGH);
digitalWrite(d4, HIGH);
break;
}
switch (l) { // choose a Number
case 0: zero();
break;
case 1: one();
break;
case 2: two();
break;
case 3: three();
break;
case 4: four();
break;
case 5: five();
break;
case 6: six();
break;
case 7: seven();
break;
case 8: eight();
break;
case 9: nine();
break;
case 10: point(); // print a Point
break;
case 11: one(); digitalWrite(segPt, HIGH);
break;
case 12: two(); digitalWrite(segPt, HIGH);
break;
case 13: three(); digitalWrite(segPt, HIGH);
break;
case 14: four(); digitalWrite(segPt, HIGH);
break;
case 15: five(); digitalWrite(segPt, HIGH);
break;
case 16: six(); digitalWrite(segPt, HIGH);
break;
case 17: seven(); digitalWrite(segPt, HIGH);
break;
case 18: eight(); digitalWrite(segPt, HIGH);
break;
case 19: nine(); digitalWrite(segPt, HIGH);
break;
case -1: none();
break;
default: none(); // make all them off !
break;
}
delayMicroseconds(delayTime); // delayTime for nice display of the Number !
}
//=============================================//
//shown one Number in the 4 Digit
void all(int n) {
selectDwriteL(0, n);
}
void off() {
selectDwriteL(5, 0);
}
//=============================================//
void zero() {
digitalWrite(segA, HIGH);
digitalWrite(segB, HIGH);
digitalWrite(segC, HIGH);
digitalWrite(segD, HIGH);
digitalWrite(segE, HIGH);
digitalWrite(segF, HIGH);
digitalWrite(segG, LOW);
digitalWrite(segPt, LOW);
}
//=============================================//
void one() {
digitalWrite(segA, LOW);
digitalWrite(segB, HIGH);
digitalWrite(segC, HIGH);
digitalWrite(segD, LOW);
digitalWrite(segE, LOW);
digitalWrite(segF, LOW);
digitalWrite(segG, LOW);
digitalWrite(segPt, LOW);
}
//=============================================//
void two() {
digitalWrite(segA, HIGH);
digitalWrite(segB, HIGH);
digitalWrite(segC, LOW);
digitalWrite(segD, HIGH);
digitalWrite(segE, HIGH);
digitalWrite(segF, LOW);
digitalWrite(segG, HIGH);
digitalWrite(segPt, LOW);
}
//=============================================//
void three() {
digitalWrite(segA, HIGH);
digitalWrite(segB, HIGH);
digitalWrite(segC, HIGH);
digitalWrite(segD, HIGH);
digitalWrite(segE, LOW);
digitalWrite(segF, LOW);
digitalWrite(segG, HIGH);
digitalWrite(segPt, LOW);
}
//=============================================//
void four() {
digitalWrite(segA, LOW);
digitalWrite(segB, HIGH);
digitalWrite(segC, HIGH);
digitalWrite(segD, LOW);
digitalWrite(segE, LOW);
digitalWrite(segF, HIGH);
digitalWrite(segG, HIGH);
digitalWrite(segPt, LOW);
}
//=============================================//
void five() {
digitalWrite(segA, HIGH);
digitalWrite(segB, LOW);
digitalWrite(segC, HIGH);
digitalWrite(segD, HIGH);
digitalWrite(segE, LOW);
digitalWrite(segF, HIGH);
digitalWrite(segG, HIGH);
digitalWrite(segPt, LOW);
}
//=============================================//
void six() {
digitalWrite(segA, HIGH);
digitalWrite(segB, LOW);
digitalWrite(segC, HIGH);
digitalWrite(segD, HIGH);
digitalWrite(segE, HIGH);
digitalWrite(segF, HIGH);
digitalWrite(segG, HIGH);
digitalWrite(segPt, LOW);
}
//=============================================//
void seven() {
digitalWrite(segA, HIGH);
digitalWrite(segB, HIGH);
digitalWrite(segC, HIGH);
digitalWrite(segD, LOW);
digitalWrite(segE, LOW);
digitalWrite(segF, LOW);
digitalWrite(segG, LOW);
digitalWrite(segPt, LOW);
}
//=============================================//
void eight() {
digitalWrite(segA, HIGH);
digitalWrite(segB, HIGH);
digitalWrite(segC, HIGH);
digitalWrite(segD, HIGH);
digitalWrite(segE, HIGH);
digitalWrite(segF, HIGH);
digitalWrite(segG, HIGH);
digitalWrite(segPt, LOW);
}
//=============================================//
void nine() {
digitalWrite(segA, HIGH);
digitalWrite(segB, HIGH);
digitalWrite(segC, HIGH);
digitalWrite(segD, HIGH);
digitalWrite(segE, LOW);
digitalWrite(segF, HIGH);
digitalWrite(segG, HIGH);
digitalWrite(segPt, LOW);
}
//=============================================//
void point() {
digitalWrite(segA, LOW);
digitalWrite(segB, LOW);
digitalWrite(segC, LOW);
digitalWrite(segD, LOW);
digitalWrite(segE, LOW);
digitalWrite(segF, LOW);
digitalWrite(segG, LOW);
digitalWrite(segPt, HIGH);
}
//=============================================//
void none() {
digitalWrite(segA, LOW);
digitalWrite(segB, LOW);
digitalWrite(segC, LOW);
digitalWrite(segD, LOW);
digitalWrite(segE, LOW);
digitalWrite(segF, LOW);
digitalWrite(segG, LOW);
digitalWrite(segPt, LOW);
}

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#include "/Users/Imogen/Documents/Arduino/libraries/IRremote/IRremote.h"
#include "/Users/Imogen/Documents/Arduino/libraries/IRremote/IRremote.cpp"
#include <Servo.h>
// PIN FOR RECEIVER
int receiver = 3; // Signal Pin of IR receiver to Arduino Digital Pin 11
int pos = 0; // variable to store the servo position
/*-----( Declare objects )-----*/
IRrecv irrecv(receiver); // create instance of 'irrecv'
decode_results results; // create instance of 'decode_results'
Servo myservo; // create servo object to control a servo
/*-----( Function )-----*/
void translateIR() // takes action based on IR code received
// describing Remote IR codes
{
switch (results.value)
{
case 0xFFA25D: Serial.println("POWER"); myservo.attach(9); // attaches the servo on pin 9 to the servo object
break;
case 0xFFE21D: Serial.println("FUNC/STOP"); myservo.detach(); // attaches the servo on pin 9 to the servo object
break;
case 0xFF629D: Serial.println("VOL+"); digitalWrite(8, HIGH); break;
case 0xFF22DD: Serial.println("FAST BACK"); break;
case 0xFF02FD: Serial.println("PAUSE"); break;
case 0xFFC23D: Serial.println("FAST FORWARD"); break;
case 0xFFE01F: Serial.println("DOWN"); for (pos = 5; pos >=0; pos-=1){myservo.attach(9); myservo.write(pos); delay(15); myservo.detach();} break;
case 0xFFA857: Serial.println("VOL-"); digitalWrite(8, LOW); break;
case 0xFF906F: Serial.println("UP"); for (pos = 0; pos <=5; pos+=1){myservo.attach(9); myservo.write(pos); delay(15); myservo.detach();} break;
case 0xFF9867: Serial.println("EQ"); break;
case 0xFFB04F: Serial.println("ST/REPT"); break;
case 0xFF6897: Serial.println("0"); break;
case 0xFF30CF: Serial.println("1"); break;
case 0xFF18E7: Serial.println("2"); break;
case 0xFF7A85: Serial.println("3");; break;
case 0xFF10EF: Serial.println("4"); break;
case 0xFF38C7: Serial.println("5"); break;
case 0xFF5AA5: Serial.println("6"); break;
case 0xFF42BD: Serial.println("7"); break;
case 0xFF4AB5: Serial.println("8"); break;
case 0xFF52AD: Serial.println("9"); break;
//case 0xFFFFFFFF: Serial.println(" REPEAT"); digitalWrite(8, LOW); break;
default:
Serial.println(" other button ");
}// End Case
delay(50); // Do not get immediate repeat
} //END translateIR
//=============================================//
//init all pin used
void setup() {
Serial.begin(9600);
Serial.println("IR Receiver Button Decode - Initializing...");
irrecv.enableIRIn(); // Start the receiver
pinMode(2, OUTPUT);
// pinMode(3, OUTPUT); // reserved for IR input
// pinMode(4, OUTPUT);
// pinMode(5, OUTPUT);
// pinMode(6, OUTPUT);
// pinMode(7, OUTPUT);
pinMode(8, OUTPUT);
pinMode(9, OUTPUT);
myservo.attach(9); // attaches the servo on pin 9 to the servo object
// pinMode(10, OUTPUT);
// pinMode(11, OUTPUT);
// pinMode(12, OUTPUT);
// pinMode(13, OUTPUT);
}
//=======================================================================================//
void loop() /*----( LOOP: RUNS CONSTANTLY )----*/
{
if (irrecv.decode(&results)) // have we received an IR signal?
{
// Serial.println(results.value); // for debugging
translateIR();
irrecv.resume(); // receive the next value
}
}/* --(end main loop )-- */

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//www.elegoo.com
//2016.12.08
#include "SR04.h"
#define TRIG_PIN 12
#define ECHO_PIN 11
SR04 sr04 = SR04(ECHO_PIN,TRIG_PIN);
long a;
void setup() {
Serial.begin(9600);
delay(1000);
}
void loop() {
a=sr04.Distance();
if(a>0){
Serial.print(a);
Serial.println("cm");
}
delay(10);
}

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//www.elegoo.com
//2016.12.9
#include <SimpleDHT.h>
#include <avr/sleep.h>
// for DHT11,
// VCC: 5V or 3V
// GND: GND
// DATA: 2
int pinDHT11 = 2;
SimpleDHT11 dht11;
void blink(int delayTime) {
digitalWrite(13, HIGH);
delay(delayTime);
digitalWrite(13, LOW);
delay(delayTime);
}
void change(){
delay(500);
blink(1000);
delay(500);
}
int ct = 0;
int SerialTransmit = 1;
int pin2_interrupt_flag = 0;
void pin2_isr()
{
sleep_disable();
detachInterrupt(0);
pin2_interrupt_flag = 1;
}
void setup() {
if(SerialTransmit){Serial.begin(9600);}
pinMode(13,OUTPUT);
}
void loop() {
// start working...
// sleep_enable();
// attachInterrupt(0, pin2_isr, LOW);
/* 0, 1, or many lines of code here */
if(SerialTransmit){
Serial.println("=================================");
Serial.println("Sample DHT11...");
}
byte temperature = 0;
byte humidity = 0;
byte data[40] = {0};
// read with raw sample data
if(ct >= 0){
dht11.read(pinDHT11, &temperature, &humidity, data);
ct++;
// TEMPERATURE
for (int i = 0; i < (int)temperature/100; i++){
blink(50);
}
change();
for (int i = 0; i < (int)temperature/10; i++){
blink(50);
}
change();
for (int i = 0; i < (int)temperature%10; i++){
blink(50);
}
// HUMIDITY
change();
for (int i = 0; i < (int)humidity/10; i++){
blink(50);
}
change();
for (int i = 0; i < (int)humidity%10; i++){
blink(50);
}
}
delay(1000);
if(SerialTransmit){
if (dht11.read(pinDHT11, &temperature, &humidity, data)) {
Serial.print("Read DHT11 failed");
return;
}
Serial.print("Sample RAW Bits: ");
for (int i = 0; i < 40; i++) {
Serial.print((int)data[i]);
if (i > 0 && ((i + 1) % 4) == 0) {
Serial.print(' ');
}
}
Serial.println("");
Serial.print("Sample OK: ");
Serial.print((int)temperature); Serial.print(" *C, ");
Serial.print((int)humidity); Serial.println(" %");
// DHT11 sampling rate is 1HZ.
delay(1000);
}
// set_sleep_mode(SLEEP_MODE_PWR_DOWN);
// cli();
// sleep_bod_disable();
// sei();
// sleep_cpu();
// /* wake up here */
// sleep_disable();
// ct = 0;
}

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//www.elegoo.com
//2016.12.09
// Arduino pin numbers
const int SW_pin = 2; // digital pin connected to switch output
const int X_pin = 0; // analog pin connected to X output
const int Y_pin = 1; // analog pin connected to Y output
void setup() {
pinMode(SW_pin, INPUT);
digitalWrite(SW_pin, HIGH);
Serial.begin(9600);
}
void loop() {
Serial.print("Switch: ");
Serial.print(digitalRead(SW_pin));
Serial.print("\n");
Serial.print("X-axis: ");
Serial.print(analogRead(X_pin));
Serial.print("\n");
Serial.print("Y-axis: ");
Serial.println(analogRead(Y_pin));
Serial.print("\n\n");
delay(500);
}

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//www.elegoo.com
//2016.12.9
#include "/Users/Imogen/Documents/Arduino/libraries/IRremote/IRremote.h"
#include "/Users/Imogen/Documents/Arduino/libraries/IRremote/IRremote.cpp"
//#include "/Users/Imogen/Documents/Arduino/libraries/IRremote/IRremoteInt.h"
int LEDPIN = 8;
int receiver = 3; // Signal Pin of IR receiver to Arduino Digital Pin 11
/*-----( Declare objects )-----*/
IRrecv irrecv(receiver); // create instance of 'irrecv'
decode_results results; // create instance of 'decode_results'
/*-----( Function )-----*/
void translateIR() // takes action based on IR code received
// describing Remote IR codes
{
switch(results.value)
{
case 0xFFA25D: Serial.println("POWER"); digitalWrite(LEDPIN, HIGH); break;
case 0xFFE21D: Serial.println("FUNC/STOP"); digitalWrite(LEDPIN, LOW); break;
case 0xFF629D: Serial.println("VOL+"); break;
case 0xFF22DD: Serial.println("FAST BACK"); break;
case 0xFF02FD: Serial.println("PAUSE"); break;
case 0xFFC23D: Serial.println("FAST FORWARD"); break;
case 0xFFE01F: Serial.println("DOWN"); break;
case 0xFFA857: Serial.println("VOL-"); break;
case 0xFF906F: Serial.println("UP"); break;
case 0xFF9867: Serial.println("EQ"); break;
case 0xFFB04F: Serial.println("ST/REPT"); break;
case 0xFF6897: Serial.println("0"); break;
case 0xFF30CF: Serial.println("1"); break;
case 0xFF18E7: Serial.println("2"); break;
case 0xFF7A85: Serial.println("3"); break;
case 0xFF10EF: Serial.println("4"); break;
case 0xFF38C7: Serial.println("5"); break;
case 0xFF5AA5: Serial.println("6"); break;
case 0xFF42BD: Serial.println("7"); break;
case 0xFF4AB5: Serial.println("8"); break;
case 0xFF52AD: Serial.println("9"); break;
//case 0xFFFFFFFF: Serial.println(" REPEAT"); digitalWrite(8, LOW); break;
default:
Serial.println(" other button ");
}// End Case
delay(100); // Do not get immediate repeat
} //END translateIR
void setup() /*----( SETUP: RUNS ONCE )----*/
{
Serial.begin(9600);
Serial.println("IR Receiver Button Decode - Initializing...");
irrecv.enableIRIn(); // Start the receiver
pinMode(LEDPIN, OUTPUT);
Serial.println("Done.");
}/*--(end setup )---*/
void loop() /*----( LOOP: RUNS CONSTANTLY )----*/
{
if (irrecv.decode(&results)) // have we received an IR signal?
{
translateIR();
//Serial.println(results.value);
irrecv.resume(); // receive the next value
}
}/* --(end main loop )-- */

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/*
* IRremote
* Version 0.1 July, 2009
* Copyright 2009 Ken Shirriff
* For details, see http://arcfn.com/2009/08/multi-protocol-infrared-remote-library.htm http://arcfn.com
* Edited by Mitra to add new controller SANYO
*
* Interrupt code based on NECIRrcv by Joe Knapp
* http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1210243556
* Also influenced by http://zovirl.com/2008/11/12/building-a-universal-remote-with-an-arduino/
*
* JVC and Panasonic protocol added by Kristian Lauszus (Thanks to zenwheel and other people at the original blog post)
* LG added by Darryl Smith (based on the JVC protocol)
*/
#ifndef IRremote_h
#define IRremote_h
// The following are compile-time library options.
// If you change them, recompile the library.
// If DEBUG is defined, a lot of debugging output will be printed during decoding.
// TEST must be defined for the IRtest unittests to work. It will make some
// methods virtual, which will be slightly slower, which is why it is optional.
// #define DEBUG
// #define TEST
// Results returned from the decoder
class decode_results {
public:
int decode_type; // NEC, SONY, RC5, UNKNOWN
union { // This is used for decoding Panasonic and Sharp data
unsigned int panasonicAddress;
unsigned int sharpAddress;
};
unsigned long value; // Decoded value
int bits; // Number of bits in decoded value
volatile unsigned int *rawbuf; // Raw intervals in .5 us ticks
int rawlen; // Number of records in rawbuf.
};
// Values for decode_type
#define NEC 1
#define SONY 2
#define RC5 3
#define RC6 4
#define DISH 5
#define SHARP 6
#define PANASONIC 7
#define JVC 8
#define SANYO 9
#define MITSUBISHI 10
#define SAMSUNG 11
#define LG 12
#define UNKNOWN -1
// Decoded value for NEC when a repeat code is received
#define REPEAT 0xffffffff
// main class for receiving IR
class IRrecv
{
public:
IRrecv(int recvpin);
void blink13(int blinkflag);
int decode(decode_results *results);
void enableIRIn();
void resume();
private:
// These are called by decode
int getRClevel(decode_results *results, int *offset, int *used, int t1);
long decodeNEC(decode_results *results);
long decodeSony(decode_results *results);
long decodeSanyo(decode_results *results);
long decodeMitsubishi(decode_results *results);
long decodeRC5(decode_results *results);
long decodeRC6(decode_results *results);
long decodePanasonic(decode_results *results);
long decodeLG(decode_results *results);
long decodeJVC(decode_results *results);
long decodeSAMSUNG(decode_results *results);
long decodeHash(decode_results *results);
int compare(unsigned int oldval, unsigned int newval);
}
;
// Only used for testing; can remove virtual for shorter code
#ifdef TEST
#define VIRTUAL virtual
#else
#define VIRTUAL
#endif
class IRsend
{
public:
IRsend() {}
void sendNEC(unsigned long data, int nbits);
void sendSony(unsigned long data, int nbits);
// Neither Sanyo nor Mitsubishi send is implemented yet
// void sendSanyo(unsigned long data, int nbits);
// void sendMitsubishi(unsigned long data, int nbits);
void sendRaw(unsigned int buf[], int len, int hz);
void sendRC5(unsigned long data, int nbits);
void sendRC6(unsigned long data, int nbits);
void sendDISH(unsigned long data, int nbits);
void sendSharp(unsigned int address, unsigned int command);
void sendSharpRaw(unsigned long data, int nbits);
void sendPanasonic(unsigned int address, unsigned long data);
void sendJVC(unsigned long data, int nbits, int repeat); // *Note instead of sending the REPEAT constant if you want the JVC repeat signal sent, send the original code value and change the repeat argument from 0 to 1. JVC protocol repeats by skipping the header NOT by sending a separate code value like NEC does.
// private:
void sendSAMSUNG(unsigned long data, int nbits);
void enableIROut(int khz);
VIRTUAL void mark(int usec);
VIRTUAL void space(int usec);
}
;
// Some useful constants
#define USECPERTICK 50 // microseconds per clock interrupt tick
#define RAWBUF 100 // Length of raw duration buffer
// Marks tend to be 100us too long, and spaces 100us too short
// when received due to sensor lag.
#define MARK_EXCESS 100
#endif

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/*
* IRremote
* Version 0.1 July, 2009
* Copyright 2009 Ken Shirriff
* For details, see http://arcfn.com/2009/08/multi-protocol-infrared-remote-library.html
*
* Modified by Paul Stoffregen <paul@pjrc.com> to support other boards and timers
*
* Interrupt code based on NECIRrcv by Joe Knapp
* http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1210243556
* Also influenced by http://zovirl.com/2008/11/12/building-a-universal-remote-with-an-arduino/
*
* JVC and Panasonic protocol added by Kristian Lauszus (Thanks to zenwheel and other people at the original blog post)
*/
#ifndef IRremoteint_h
#define IRremoteint_h
#if defined(ARDUINO) && ARDUINO >= 100
#include <Arduino.h>
#else
#include <WProgram.h>
#endif
// define which timer to use
//
// Uncomment the timer you wish to use on your board. If you
// are using another library which uses timer2, you have options
// to switch IRremote to use a different timer.
// Arduino Mega
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
//#define IR_USE_TIMER1 // tx = pin 11
#define IR_USE_TIMER2 // tx = pin 9
//#define IR_USE_TIMER3 // tx = pin 5
//#define IR_USE_TIMER4 // tx = pin 6
//#define IR_USE_TIMER5 // tx = pin 46
// Teensy 1.0
#elif defined(__AVR_AT90USB162__)
#define IR_USE_TIMER1 // tx = pin 17
// Teensy 2.0
#elif defined(__AVR_ATmega32U4__)
//#define IR_USE_TIMER1 // tx = pin 14
//#define IR_USE_TIMER3 // tx = pin 9
#define IR_USE_TIMER4_HS // tx = pin 10
// Teensy 3.0
#elif defined(__MK20DX128__)
#define IR_USE_TIMER_CMT // tx = pin 5
// Teensy++ 1.0 & 2.0
#elif defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__)
//#define IR_USE_TIMER1 // tx = pin 25
#define IR_USE_TIMER2 // tx = pin 1
//#define IR_USE_TIMER3 // tx = pin 16
// Sanguino
#elif defined(__AVR_ATmega644P__) || defined(__AVR_ATmega644__)
//#define IR_USE_TIMER1 // tx = pin 13
#define IR_USE_TIMER2 // tx = pin 14
// Atmega8
#elif defined(__AVR_ATmega8P__) || defined(__AVR_ATmega8__)
#define IR_USE_TIMER1 // tx = pin 9
// Arduino Duemilanove, Diecimila, LilyPad, Mini, Fio, etc
#else
//#define IR_USE_TIMER1 // tx = pin 9
#define IR_USE_TIMER2 // tx = pin 3
#endif
#ifdef F_CPU
#define SYSCLOCK F_CPU // main Arduino clock
#else
#define SYSCLOCK 16000000 // main Arduino clock
#endif
#define ERR 0
#define DECODED 1
// defines for setting and clearing register bits
#ifndef cbi
#define cbi(sfr, bit) (_SFR_BYTE(sfr) &= ~_BV(bit))
#endif
#ifndef sbi
#define sbi(sfr, bit) (_SFR_BYTE(sfr) |= _BV(bit))
#endif
// Pulse parms are *50-100 for the Mark and *50+100 for the space
// First MARK is the one after the long gap
// pulse parameters in usec
#define NEC_HDR_MARK 9000
#define NEC_HDR_SPACE 4500
#define NEC_BIT_MARK 560
#define NEC_ONE_SPACE 1600
#define NEC_ZERO_SPACE 560
#define NEC_RPT_SPACE 2250
#define SONY_HDR_MARK 2400
#define SONY_HDR_SPACE 600
#define SONY_ONE_MARK 1200
#define SONY_ZERO_MARK 600
#define SONY_RPT_LENGTH 45000
#define SONY_DOUBLE_SPACE_USECS 500 // usually ssee 713 - not using ticks as get number wrapround
// SA 8650B
#define SANYO_HDR_MARK 3500 // seen range 3500
#define SANYO_HDR_SPACE 950 // seen 950
#define SANYO_ONE_MARK 2400 // seen 2400
#define SANYO_ZERO_MARK 700 // seen 700
#define SANYO_DOUBLE_SPACE_USECS 800 // usually ssee 713 - not using ticks as get number wrapround
#define SANYO_RPT_LENGTH 45000
// Mitsubishi RM 75501
// 14200 7 41 7 42 7 42 7 17 7 17 7 18 7 41 7 18 7 17 7 17 7 18 7 41 8 17 7 17 7 18 7 17 7
// #define MITSUBISHI_HDR_MARK 250 // seen range 3500
#define MITSUBISHI_HDR_SPACE 350 // 7*50+100
#define MITSUBISHI_ONE_MARK 1950 // 41*50-100
#define MITSUBISHI_ZERO_MARK 750 // 17*50-100
// #define MITSUBISHI_DOUBLE_SPACE_USECS 800 // usually ssee 713 - not using ticks as get number wrapround
// #define MITSUBISHI_RPT_LENGTH 45000
#define RC5_T1 889
#define RC5_RPT_LENGTH 46000
#define RC6_HDR_MARK 2666
#define RC6_HDR_SPACE 889
#define RC6_T1 444
#define RC6_RPT_LENGTH 46000
#define SHARP_BIT_MARK 245
#define SHARP_ONE_SPACE 1805
#define SHARP_ZERO_SPACE 795
#define SHARP_GAP 600000
#define SHARP_TOGGLE_MASK 0x3FF
#define SHARP_RPT_SPACE 3000
#define DISH_HDR_MARK 400
#define DISH_HDR_SPACE 6100
#define DISH_BIT_MARK 400
#define DISH_ONE_SPACE 1700
#define DISH_ZERO_SPACE 2800
#define DISH_RPT_SPACE 6200
#define DISH_TOP_BIT 0x8000
#define PANASONIC_HDR_MARK 3502
#define PANASONIC_HDR_SPACE 1750
#define PANASONIC_BIT_MARK 502
#define PANASONIC_ONE_SPACE 1244
#define PANASONIC_ZERO_SPACE 400
#define JVC_HDR_MARK 8000
#define JVC_HDR_SPACE 4000
#define JVC_BIT_MARK 600
#define JVC_ONE_SPACE 1600
#define JVC_ZERO_SPACE 550
#define JVC_RPT_LENGTH 60000
#define LG_HDR_MARK 8000
#define LG_HDR_SPACE 4000
#define LG_BIT_MARK 600
#define LG_ONE_SPACE 1600
#define LG_ZERO_SPACE 550
#define LG_RPT_LENGTH 60000
#define SAMSUNG_HDR_MARK 5000
#define SAMSUNG_HDR_SPACE 5000
#define SAMSUNG_BIT_MARK 560
#define SAMSUNG_ONE_SPACE 1600
#define SAMSUNG_ZERO_SPACE 560
#define SAMSUNG_RPT_SPACE 2250
#define SHARP_BITS 15
#define DISH_BITS 16
#define TOLERANCE 25 // percent tolerance in measurements
#define LTOL (1.0 - TOLERANCE/100.)
#define UTOL (1.0 + TOLERANCE/100.)
#define _GAP 5000 // Minimum map between transmissions
#define GAP_TICKS (_GAP/USECPERTICK)
#define TICKS_LOW(us) (int) (((us)*LTOL/USECPERTICK))
#define TICKS_HIGH(us) (int) (((us)*UTOL/USECPERTICK + 1))
// receiver states
#define STATE_IDLE 2
#define STATE_MARK 3
#define STATE_SPACE 4
#define STATE_STOP 5
// information for the interrupt handler
typedef struct {
uint8_t recvpin; // pin for IR data from detector
uint8_t rcvstate; // state machine
uint8_t blinkflag; // TRUE to enable blinking of pin 13 on IR processing
unsigned int timer; // state timer, counts 50uS ticks.
unsigned int rawbuf[RAWBUF]; // raw data
uint8_t rawlen; // counter of entries in rawbuf
}
irparams_t;
// Defined in IRremote.cpp
extern volatile irparams_t irparams;
// IR detector output is active low
#define MARK 0
#define SPACE 1
#define TOPBIT 0x80000000
#define NEC_BITS 32
#define SONY_BITS 12
#define SANYO_BITS 12
#define MITSUBISHI_BITS 16
#define MIN_RC5_SAMPLES 11
#define MIN_RC6_SAMPLES 1
#define PANASONIC_BITS 48
#define JVC_BITS 16
#define LG_BITS 28
#define SAMSUNG_BITS 32
// defines for timer2 (8 bits)
#if defined(IR_USE_TIMER2)
#define TIMER_RESET
#define TIMER_ENABLE_PWM (TCCR2A |= _BV(COM2B1))
#define TIMER_DISABLE_PWM (TCCR2A &= ~(_BV(COM2B1)))
#define TIMER_ENABLE_INTR (TIMSK2 = _BV(OCIE2A))
#define TIMER_DISABLE_INTR (TIMSK2 = 0)
#define TIMER_INTR_NAME TIMER2_COMPA_vect
#define TIMER_CONFIG_KHZ(val) ({ \
const uint8_t pwmval = SYSCLOCK / 2000 / (val); \
TCCR2A = _BV(WGM20); \
TCCR2B = _BV(WGM22) | _BV(CS20); \
OCR2A = pwmval; \
OCR2B = pwmval / 3; \
})
#define TIMER_COUNT_TOP (SYSCLOCK * USECPERTICK / 1000000)
#if (TIMER_COUNT_TOP < 256)
#define TIMER_CONFIG_NORMAL() ({ \
TCCR2A = _BV(WGM21); \
TCCR2B = _BV(CS20); \
OCR2A = TIMER_COUNT_TOP; \
TCNT2 = 0; \
})
#else
#define TIMER_CONFIG_NORMAL() ({ \
TCCR2A = _BV(WGM21); \
TCCR2B = _BV(CS21); \
OCR2A = TIMER_COUNT_TOP / 8; \
TCNT2 = 0; \
})
#endif
#if defined(CORE_OC2B_PIN)
#define TIMER_PWM_PIN CORE_OC2B_PIN /* Teensy */
#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
#define TIMER_PWM_PIN 9 /* Arduino Mega */
#elif defined(__AVR_ATmega644P__) || defined(__AVR_ATmega644__)
#define TIMER_PWM_PIN 14 /* Sanguino */
#else
#define TIMER_PWM_PIN 3 /* Arduino Duemilanove, Diecimila, LilyPad, etc */
#endif
// defines for timer1 (16 bits)
#elif defined(IR_USE_TIMER1)
#define TIMER_RESET
#define TIMER_ENABLE_PWM (TCCR1A |= _BV(COM1A1))
#define TIMER_DISABLE_PWM (TCCR1A &= ~(_BV(COM1A1)))
#if defined(__AVR_ATmega8P__) || defined(__AVR_ATmega8__)
#define TIMER_ENABLE_INTR (TIMSK = _BV(OCIE1A))
#define TIMER_DISABLE_INTR (TIMSK = 0)
#else
#define TIMER_ENABLE_INTR (TIMSK1 = _BV(OCIE1A))
#define TIMER_DISABLE_INTR (TIMSK1 = 0)
#endif
#define TIMER_INTR_NAME TIMER1_COMPA_vect
#define TIMER_CONFIG_KHZ(val) ({ \
const uint16_t pwmval = SYSCLOCK / 2000 / (val); \
TCCR1A = _BV(WGM11); \
TCCR1B = _BV(WGM13) | _BV(CS10); \
ICR1 = pwmval; \
OCR1A = pwmval / 3; \
})
#define TIMER_CONFIG_NORMAL() ({ \
TCCR1A = 0; \
TCCR1B = _BV(WGM12) | _BV(CS10); \
OCR1A = SYSCLOCK * USECPERTICK / 1000000; \
TCNT1 = 0; \
})
#if defined(CORE_OC1A_PIN)
#define TIMER_PWM_PIN CORE_OC1A_PIN /* Teensy */
#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
#define TIMER_PWM_PIN 11 /* Arduino Mega */
#elif defined(__AVR_ATmega644P__) || defined(__AVR_ATmega644__)
#define TIMER_PWM_PIN 13 /* Sanguino */
#else
#define TIMER_PWM_PIN 9 /* Arduino Duemilanove, Diecimila, LilyPad, etc */
#endif
// defines for timer3 (16 bits)
#elif defined(IR_USE_TIMER3)
#define TIMER_RESET
#define TIMER_ENABLE_PWM (TCCR3A |= _BV(COM3A1))
#define TIMER_DISABLE_PWM (TCCR3A &= ~(_BV(COM3A1)))
#define TIMER_ENABLE_INTR (TIMSK3 = _BV(OCIE3A))
#define TIMER_DISABLE_INTR (TIMSK3 = 0)
#define TIMER_INTR_NAME TIMER3_COMPA_vect
#define TIMER_CONFIG_KHZ(val) ({ \
const uint16_t pwmval = SYSCLOCK / 2000 / (val); \
TCCR3A = _BV(WGM31); \
TCCR3B = _BV(WGM33) | _BV(CS30); \
ICR3 = pwmval; \
OCR3A = pwmval / 3; \
})
#define TIMER_CONFIG_NORMAL() ({ \
TCCR3A = 0; \
TCCR3B = _BV(WGM32) | _BV(CS30); \
OCR3A = SYSCLOCK * USECPERTICK / 1000000; \
TCNT3 = 0; \
})
#if defined(CORE_OC3A_PIN)
#define TIMER_PWM_PIN CORE_OC3A_PIN /* Teensy */
#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
#define TIMER_PWM_PIN 5 /* Arduino Mega */
#else
#error "Please add OC3A pin number here\n"
#endif
// defines for timer4 (10 bits, high speed option)
#elif defined(IR_USE_TIMER4_HS)
#define TIMER_RESET
#define TIMER_ENABLE_PWM (TCCR4A |= _BV(COM4A1))
#define TIMER_DISABLE_PWM (TCCR4A &= ~(_BV(COM4A1)))
#define TIMER_ENABLE_INTR (TIMSK4 = _BV(TOIE4))
#define TIMER_DISABLE_INTR (TIMSK4 = 0)
#define TIMER_INTR_NAME TIMER4_OVF_vect
#define TIMER_CONFIG_KHZ(val) ({ \
const uint16_t pwmval = SYSCLOCK / 2000 / (val); \
TCCR4A = (1<<PWM4A); \
TCCR4B = _BV(CS40); \
TCCR4C = 0; \
TCCR4D = (1<<WGM40); \
TCCR4E = 0; \
TC4H = pwmval >> 8; \
OCR4C = pwmval; \
TC4H = (pwmval / 3) >> 8; \
OCR4A = (pwmval / 3) & 255; \
})
#define TIMER_CONFIG_NORMAL() ({ \
TCCR4A = 0; \
TCCR4B = _BV(CS40); \
TCCR4C = 0; \
TCCR4D = 0; \
TCCR4E = 0; \
TC4H = (SYSCLOCK * USECPERTICK / 1000000) >> 8; \
OCR4C = (SYSCLOCK * USECPERTICK / 1000000) & 255; \
TC4H = 0; \
TCNT4 = 0; \
})
#if defined(CORE_OC4A_PIN)
#define TIMER_PWM_PIN CORE_OC4A_PIN /* Teensy */
#elif defined(__AVR_ATmega32U4__)
#define TIMER_PWM_PIN 13 /* Leonardo */
#else
#error "Please add OC4A pin number here\n"
#endif
// defines for timer4 (16 bits)
#elif defined(IR_USE_TIMER4)
#define TIMER_RESET
#define TIMER_ENABLE_PWM (TCCR4A |= _BV(COM4A1))
#define TIMER_DISABLE_PWM (TCCR4A &= ~(_BV(COM4A1)))
#define TIMER_ENABLE_INTR (TIMSK4 = _BV(OCIE4A))
#define TIMER_DISABLE_INTR (TIMSK4 = 0)
#define TIMER_INTR_NAME TIMER4_COMPA_vect
#define TIMER_CONFIG_KHZ(val) ({ \
const uint16_t pwmval = SYSCLOCK / 2000 / (val); \
TCCR4A = _BV(WGM41); \
TCCR4B = _BV(WGM43) | _BV(CS40); \
ICR4 = pwmval; \
OCR4A = pwmval / 3; \
})
#define TIMER_CONFIG_NORMAL() ({ \
TCCR4A = 0; \
TCCR4B = _BV(WGM42) | _BV(CS40); \
OCR4A = SYSCLOCK * USECPERTICK / 1000000; \
TCNT4 = 0; \
})
#if defined(CORE_OC4A_PIN)
#define TIMER_PWM_PIN CORE_OC4A_PIN
#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
#define TIMER_PWM_PIN 6 /* Arduino Mega */
#else
#error "Please add OC4A pin number here\n"
#endif
// defines for timer5 (16 bits)
#elif defined(IR_USE_TIMER5)
#define TIMER_RESET
#define TIMER_ENABLE_PWM (TCCR5A |= _BV(COM5A1))
#define TIMER_DISABLE_PWM (TCCR5A &= ~(_BV(COM5A1)))
#define TIMER_ENABLE_INTR (TIMSK5 = _BV(OCIE5A))
#define TIMER_DISABLE_INTR (TIMSK5 = 0)
#define TIMER_INTR_NAME TIMER5_COMPA_vect
#define TIMER_CONFIG_KHZ(val) ({ \
const uint16_t pwmval = SYSCLOCK / 2000 / (val); \
TCCR5A = _BV(WGM51); \
TCCR5B = _BV(WGM53) | _BV(CS50); \
ICR5 = pwmval; \
OCR5A = pwmval / 3; \
})
#define TIMER_CONFIG_NORMAL() ({ \
TCCR5A = 0; \
TCCR5B = _BV(WGM52) | _BV(CS50); \
OCR5A = SYSCLOCK * USECPERTICK / 1000000; \
TCNT5 = 0; \
})
#if defined(CORE_OC5A_PIN)
#define TIMER_PWM_PIN CORE_OC5A_PIN
#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
#define TIMER_PWM_PIN 46 /* Arduino Mega */
#else
#error "Please add OC5A pin number here\n"
#endif
// defines for special carrier modulator timer
#elif defined(IR_USE_TIMER_CMT)
#define TIMER_RESET ({ \
uint8_t tmp = CMT_MSC; \
CMT_CMD2 = 30; \
})
#define TIMER_ENABLE_PWM CORE_PIN5_CONFIG = PORT_PCR_MUX(2)|PORT_PCR_DSE|PORT_PCR_SRE
#define TIMER_DISABLE_PWM CORE_PIN5_CONFIG = PORT_PCR_MUX(1)|PORT_PCR_DSE|PORT_PCR_SRE
#define TIMER_ENABLE_INTR NVIC_ENABLE_IRQ(IRQ_CMT)
#define TIMER_DISABLE_INTR NVIC_DISABLE_IRQ(IRQ_CMT)
#define TIMER_INTR_NAME cmt_isr
#ifdef ISR
#undef ISR
#endif
#define ISR(f) void f(void)
#if F_BUS == 48000000
#define CMT_PPS_VAL 5
#else
#define CMT_PPS_VAL 2
#endif
#define TIMER_CONFIG_KHZ(val) ({ \
SIM_SCGC4 |= SIM_SCGC4_CMT; \
SIM_SOPT2 |= SIM_SOPT2_PTD7PAD; \
CMT_PPS = CMT_PPS_VAL; \
CMT_CGH1 = 2667 / val; \
CMT_CGL1 = 5333 / val; \
CMT_CMD1 = 0; \
CMT_CMD2 = 30; \
CMT_CMD3 = 0; \
CMT_CMD4 = 0; \
CMT_OC = 0x60; \
CMT_MSC = 0x01; \
})
#define TIMER_CONFIG_NORMAL() ({ \
SIM_SCGC4 |= SIM_SCGC4_CMT; \
CMT_PPS = CMT_PPS_VAL; \
CMT_CGH1 = 1; \
CMT_CGL1 = 1; \
CMT_CMD1 = 0; \
CMT_CMD2 = 30; \
CMT_CMD3 = 0; \
CMT_CMD4 = 19; \
CMT_OC = 0; \
CMT_MSC = 0x03; \
})
#define TIMER_PWM_PIN 5
#else // unknown timer
#error "Internal code configuration error, no known IR_USE_TIMER# defined\n"
#endif
// defines for blinking the LED
#if defined(CORE_LED0_PIN)
#define BLINKLED CORE_LED0_PIN
#define BLINKLED_ON() (digitalWrite(CORE_LED0_PIN, HIGH))
#define BLINKLED_OFF() (digitalWrite(CORE_LED0_PIN, LOW))
#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
#define BLINKLED 13
#define BLINKLED_ON() (PORTB |= B10000000)
#define BLINKLED_OFF() (PORTB &= B01111111)
#elif defined(__AVR_ATmega644P__) || defined(__AVR_ATmega644__)
#define BLINKLED 0
#define BLINKLED_ON() (PORTD |= B00000001)
#define BLINKLED_OFF() (PORTD &= B11111110)
#else
#define BLINKLED 13
#define BLINKLED_ON() (PORTB |= B00100000)
#define BLINKLED_OFF() (PORTB &= B11011111)
#endif
#endif

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@ -0,0 +1,458 @@
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Version 2.1, February 1999
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168
projects/elegoo-kit-lessons/Lesson 13 IR Receiver Module/IRremote/examples/IRrecord/IRrecord.ino Normal file
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/*
* IRrecord: record and play back IR signals as a minimal
* An IR detector/demodulator must be connected to the input RECV_PIN.
* An IR LED must be connected to the output PWM pin 3.
* A button must be connected to the input BUTTON_PIN; this is the
* send button.
* A visible LED can be connected to STATUS_PIN to provide status.
*
* The logic is:
* If the button is pressed, send the IR code.
* If an IR code is received, record it.
*
* Version 0.11 September, 2009
* Copyright 2009 Ken Shirriff
* http://arcfn.com
*/
#include </Users/Imogen/Documents/Arduino/libraries/IRremote/IRremote.h>
#include </Users/Imogen/Documents/Arduino/libraries/IRremote/IRremote.cpp>
int RECV_PIN = 11;
int BUTTON_PIN = 12;
int STATUS_PIN = 13;
IRrecv irrecv(RECV_PIN);
IRsend irsend;
decode_results results;
void setup()
{
Serial.begin(9600);
irrecv.enableIRIn(); // Start the receiver
pinMode(BUTTON_PIN, INPUT);
pinMode(STATUS_PIN, OUTPUT);
}
// Storage for the recorded code
int codeType = -1; // The type of code
unsigned long codeValue; // The code value if not raw
unsigned int rawCodes[RAWBUF]; // The durations if raw
int codeLen; // The length of the code
int toggle = 0; // The RC5/6 toggle state
// Stores the code for later playback
// Most of this code is just logging
void storeCode(decode_results *results) {
codeType = results->decode_type;
int count = results->rawlen;
if (codeType == UNKNOWN) {
Serial.println("Received unknown code, saving as raw");
codeLen = results->rawlen - 1;
// To store raw codes:
// Drop first value (gap)
// Convert from ticks to microseconds
// Tweak marks shorter, and spaces longer to cancel out IR receiver distortion
for (int i = 1; i <= codeLen; i++) {
if (i % 2) {
// Mark
rawCodes[i - 1] = results->rawbuf[i]*USECPERTICK - MARK_EXCESS;
Serial.print(" m");
}
else {
// Space
rawCodes[i - 1] = results->rawbuf[i]*USECPERTICK + MARK_EXCESS;
Serial.print(" s");
}
Serial.print(rawCodes[i - 1], DEC);
}
Serial.println("");
}
else {
if (codeType == NEC) {
Serial.print("Received NEC: ");
if (results->value == REPEAT) {
// Don't record a NEC repeat value as that's useless.
Serial.println("repeat; ignoring.");
return;
}
}
else if (codeType == SONY) {
Serial.print("Received SONY: ");
}
else if (codeType == RC5) {
Serial.print("Received RC5: ");
}
else if (codeType == RC6) {
Serial.print("Received RC6: ");
}
else {
Serial.print("Unexpected codeType ");
Serial.print(codeType, DEC);
Serial.println("");
}
Serial.println(results->value, HEX);
codeValue = results->value;
codeLen = results->bits;
}
}
void sendCode(int repeat) {
if (codeType == NEC) {
if (repeat) {
irsend.sendNEC(REPEAT, codeLen);
Serial.println("Sent NEC repeat");
}
else {
irsend.sendNEC(codeValue, codeLen);
Serial.print("Sent NEC ");
Serial.println(codeValue, HEX);
}
}
else if (codeType == SONY) {
irsend.sendSony(codeValue, codeLen);
Serial.print("Sent Sony ");
Serial.println(codeValue, HEX);
}
else if (codeType == RC5 || codeType == RC6) {
if (!repeat) {
// Flip the toggle bit for a new button press
toggle = 1 - toggle;
}
// Put the toggle bit into the code to send
codeValue = codeValue & ~(1 << (codeLen - 1));
codeValue = codeValue | (toggle << (codeLen - 1));
if (codeType == RC5) {
Serial.print("Sent RC5 ");
Serial.println(codeValue, HEX);
irsend.sendRC5(codeValue, codeLen);
}
else {
irsend.sendRC6(codeValue, codeLen);
Serial.print("Sent RC6 ");
Serial.println(codeValue, HEX);
}
}
else if (codeType == UNKNOWN /* i.e. raw */) {
// Assume 38 KHz
irsend.sendRaw(rawCodes, codeLen, 38);
Serial.println("Sent raw");
}
}
int lastButtonState;
void loop() {
// If button pressed, send the code.
int buttonState = digitalRead(BUTTON_PIN);
if (lastButtonState == HIGH && buttonState == LOW) {
Serial.println("Released");
irrecv.enableIRIn(); // Re-enable receiver
}
if (buttonState) {
Serial.println("Pressed, sending");
digitalWrite(STATUS_PIN, HIGH);
sendCode(lastButtonState == buttonState);
digitalWrite(STATUS_PIN, LOW);
delay(50); // Wait a bit between retransmissions
}
else if (irrecv.decode(&results)) {
digitalWrite(STATUS_PIN, HIGH);
storeCode(&results);
irrecv.resume(); // resume receiver
digitalWrite(STATUS_PIN, LOW);
}
lastButtonState = buttonState;
}

128
projects/elegoo-kit-lessons/Lesson 13 IR Receiver Module/IRremote/examples/IRrecord/IRremote.h Normal file
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/*
* IRremote
* Version 0.1 July, 2009
* Copyright 2009 Ken Shirriff
* For details, see http://arcfn.com/2009/08/multi-protocol-infrared-remote-library.htm http://arcfn.com
* Edited by Mitra to add new controller SANYO
*
* Interrupt code based on NECIRrcv by Joe Knapp
* http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1210243556
* Also influenced by http://zovirl.com/2008/11/12/building-a-universal-remote-with-an-arduino/
*
* JVC and Panasonic protocol added by Kristian Lauszus (Thanks to zenwheel and other people at the original blog post)
* LG added by Darryl Smith (based on the JVC protocol)
*/
#ifndef IRremote_h
#define IRremote_h
// The following are compile-time library options.
// If you change them, recompile the library.
// If DEBUG is defined, a lot of debugging output will be printed during decoding.
// TEST must be defined for the IRtest unittests to work. It will make some
// methods virtual, which will be slightly slower, which is why it is optional.
// #define DEBUG
// #define TEST
// Results returned from the decoder
class decode_results {
public:
int decode_type; // NEC, SONY, RC5, UNKNOWN
union { // This is used for decoding Panasonic and Sharp data
unsigned int panasonicAddress;
unsigned int sharpAddress;
};
unsigned long value; // Decoded value
int bits; // Number of bits in decoded value
volatile unsigned int *rawbuf; // Raw intervals in .5 us ticks
int rawlen; // Number of records in rawbuf.
};
// Values for decode_type
#define NEC 1
#define SONY 2
#define RC5 3
#define RC6 4
#define DISH 5
#define SHARP 6
#define PANASONIC 7
#define JVC 8
#define SANYO 9
#define MITSUBISHI 10
#define SAMSUNG 11
#define LG 12
#define UNKNOWN -1
// Decoded value for NEC when a repeat code is received
#define REPEAT 0xffffffff
// main class for receiving IR
class IRrecv
{
public:
IRrecv(int recvpin);
void blink13(int blinkflag);
int decode(decode_results *results);
void enableIRIn();
void resume();
private:
// These are called by decode
int getRClevel(decode_results *results, int *offset, int *used, int t1);
long decodeNEC(decode_results *results);
long decodeSony(decode_results *results);
long decodeSanyo(decode_results *results);
long decodeMitsubishi(decode_results *results);
long decodeRC5(decode_results *results);
long decodeRC6(decode_results *results);
long decodePanasonic(decode_results *results);
long decodeLG(decode_results *results);
long decodeJVC(decode_results *results);
long decodeSAMSUNG(decode_results *results);
long decodeHash(decode_results *results);
int compare(unsigned int oldval, unsigned int newval);
}
;
// Only used for testing; can remove virtual for shorter code
#ifdef TEST
#define VIRTUAL virtual
#else
#define VIRTUAL
#endif
class IRsend
{
public:
IRsend() {}
void sendNEC(unsigned long data, int nbits);
void sendSony(unsigned long data, int nbits);
// Neither Sanyo nor Mitsubishi send is implemented yet
// void sendSanyo(unsigned long data, int nbits);
// void sendMitsubishi(unsigned long data, int nbits);
void sendRaw(unsigned int buf[], int len, int hz);
void sendRC5(unsigned long data, int nbits);
void sendRC6(unsigned long data, int nbits);
void sendDISH(unsigned long data, int nbits);
void sendSharp(unsigned int address, unsigned int command);
void sendSharpRaw(unsigned long data, int nbits);
void sendPanasonic(unsigned int address, unsigned long data);
void sendJVC(unsigned long data, int nbits, int repeat); // *Note instead of sending the REPEAT constant if you want the JVC repeat signal sent, send the original code value and change the repeat argument from 0 to 1. JVC protocol repeats by skipping the header NOT by sending a separate code value like NEC does.
// private:
void sendSAMSUNG(unsigned long data, int nbits);
void enableIROut(int khz);
VIRTUAL void mark(int usec);
VIRTUAL void space(int usec);
}
;
// Some useful constants
#define USECPERTICK 50 // microseconds per clock interrupt tick
#define RAWBUF 100 // Length of raw duration buffer
// Marks tend to be 100us too long, and spaces 100us too short
// when received due to sensor lag.
#define MARK_EXCESS 100
#endif

29
projects/elegoo-kit-lessons/Lesson 13 IR Receiver Module/IRremote/examples/IRrecvDemo/IRrecvDemo.ino Executable file
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/*
* IRremote: IRrecvDemo - demonstrates receiving IR codes with IRrecv
* An IR detector/demodulator must be connected to the input RECV_PIN.
* Version 0.1 July, 2009
* Copyright 2009 Ken Shirriff
* http://arcfn.com
*/
#include <IRremote.h>
int RECV_PIN = 11;
IRrecv irrecv(RECV_PIN);
decode_results results;
void setup()
{
Serial.begin(9600);
irrecv.enableIRIn(); // Start the receiver
}
void loop() {
if (irrecv.decode(&results)) {
Serial.println(results.value, HEX);
irrecv.resume(); // Receive the next value
}
delay(100);
}

85
projects/elegoo-kit-lessons/Lesson 13 IR Receiver Module/IRremote/examples/IRrecvDump/IRrecvDump.ino Executable file
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/*
* IRremote: IRrecvDump - dump details of IR codes with IRrecv
* An IR detector/demodulator must be connected to the input RECV_PIN.
* Version 0.1 July, 2009
* Copyright 2009 Ken Shirriff
* http://arcfn.com
* JVC and Panasonic protocol added by Kristian Lauszus (Thanks to zenwheel and other people at the original blog post)
* LG added by Darryl Smith (based on the JVC protocol)
*/
#include <IRremote.h>
int RECV_PIN = 11;
IRrecv irrecv(RECV_PIN);
decode_results results;
void setup()
{
Serial.begin(9600);
irrecv.enableIRIn(); // Start the receiver
}
// Dumps out the decode_results structure.
// Call this after IRrecv::decode()
// void * to work around compiler issue
//void dump(void *v) {
// decode_results *results = (decode_results *)v
void dump(decode_results *results) {
int count = results->rawlen;
if (results->decode_type == UNKNOWN) {
Serial.print("Unknown encoding: ");
}
else if (results->decode_type == NEC) {
Serial.print("Decoded NEC: ");
}
else if (results->decode_type == SONY) {
Serial.print("Decoded SONY: ");
}
else if (results->decode_type == RC5) {
Serial.print("Decoded RC5: ");
}
else if (results->decode_type == RC6) {
Serial.print("Decoded RC6: ");
}
else if (results->decode_type == PANASONIC) {
Serial.print("Decoded PANASONIC - Address: ");
Serial.print(results->panasonicAddress,HEX);
Serial.print(" Value: ");
}
else if (results->decode_type == LG) {
Serial.print("Decoded LG: ");
}
else if (results->decode_type == JVC) {
Serial.print("Decoded JVC: ");
}
Serial.print(results->value, HEX);
Serial.print(" (");
Serial.print(results->bits, DEC);
Serial.println(" bits)");
Serial.print("Raw (");
Serial.print(count, DEC);
Serial.print("): ");
for (int i = 0; i < count; i++) {
if ((i % 2) == 1) {
Serial.print(results->rawbuf[i]*USECPERTICK, DEC);
}
else {
Serial.print(-(int)results->rawbuf[i]*USECPERTICK, DEC);
}
Serial.print(" ");
}
Serial.println("");
}
void loop() {
if (irrecv.decode(&results)) {
Serial.println(results.value, HEX);
dump(&results);
irrecv.resume(); // Receive the next value
}
}

85
projects/elegoo-kit-lessons/Lesson 13 IR Receiver Module/IRremote/examples/IRrelay/IRrelay.ino Executable file
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/*
* IRremote: IRrecvDemo - demonstrates receiving IR codes with IRrecv
* An IR detector/demodulator must be connected to the input RECV_PIN.
* Version 0.1 July, 2009
* Copyright 2009 Ken Shirriff
* http://arcfn.com
*/
#include <IRremote.h>
int RECV_PIN = 11;
int RELAY_PIN = 4;
IRrecv irrecv(RECV_PIN);
decode_results results;
// Dumps out the decode_results structure.
// Call this after IRrecv::decode()
// void * to work around compiler issue
//void dump(void *v) {
// decode_results *results = (decode_results *)v
void dump(decode_results *results) {
int count = results->rawlen;
if (results->decode_type == UNKNOWN) {
Serial.println("Could not decode message");
}
else {
if (results->decode_type == NEC) {
Serial.print("Decoded NEC: ");
}
else if (results->decode_type == SONY) {
Serial.print("Decoded SONY: ");
}
else if (results->decode_type == RC5) {
Serial.print("Decoded RC5: ");
}
else if (results->decode_type == RC6) {
Serial.print("Decoded RC6: ");
}
Serial.print(results->value, HEX);
Serial.print(" (");
Serial.print(results->bits, DEC);
Serial.println(" bits)");
}
Serial.print("Raw (");
Serial.print(count, DEC);
Serial.print("): ");
for (int i = 0; i < count; i++) {
if ((i % 2) == 1) {
Serial.print(results->rawbuf[i]*USECPERTICK, DEC);
}
else {
Serial.print(-(int)results->rawbuf[i]*USECPERTICK, DEC);
}
Serial.print(" ");
}
Serial.println("");
}
void setup()
{
pinMode(RELAY_PIN, OUTPUT);
pinMode(13, OUTPUT);
Serial.begin(9600);
irrecv.enableIRIn(); // Start the receiver
}
int on = 0;
unsigned long last = millis();
void loop() {
if (irrecv.decode(&results)) {
// If it's been at least 1/4 second since the last
// IR received, toggle the relay
if (millis() - last > 250) {
on = !on;
digitalWrite(RELAY_PIN, on ? HIGH : LOW);
digitalWrite(13, on ? HIGH : LOW);
dump(&results);
}
last = millis();
irrecv.resume(); // Receive the next value
}
}

25
projects/elegoo-kit-lessons/Lesson 13 IR Receiver Module/IRremote/examples/IRsendDemo/IRsendDemo.ino Executable file
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/*
* IRremote: IRsendDemo - demonstrates sending IR codes with IRsend
* An IR LED must be connected to Arduino PWM pin 3.
* Version 0.1 July, 2009
* Copyright 2009 Ken Shirriff
* http://arcfn.com
*/
#include <IRremote.h>
IRsend irsend;
void setup()
{
Serial.begin(9600);
}
void loop() {
if (Serial.read() != -1) {
for (int i = 0; i < 3; i++) {
irsend.sendSony(0xa90, 12); // Sony TV power code
delay(40);
}
}
}

190
projects/elegoo-kit-lessons/Lesson 13 IR Receiver Module/IRremote/examples/IRtest/IRtest.ino Executable file
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/*
* IRremote: IRtest unittest
* Version 0.1 July, 2009
* Copyright 2009 Ken Shirriff
* http://arcfn.com
*
* Note: to run these tests, edit IRremote/IRremote.h to add "#define TEST"
* You must then recompile the library by removing IRremote.o and restarting
* the arduino IDE.
*/
#include <IRremote.h>
#include <IRremoteInt.h>
// Dumps out the decode_results structure.
// Call this after IRrecv::decode()
// void * to work around compiler issue
//void dump(void *v) {
// decode_results *results = (decode_results *)v
void dump(decode_results *results) {
int count = results->rawlen;
if (results->decode_type == UNKNOWN) {
Serial.println("Could not decode message");
}
else {
if (results->decode_type == NEC) {
Serial.print("Decoded NEC: ");
}
else if (results->decode_type == SONY) {
Serial.print("Decoded SONY: ");
}
else if (results->decode_type == RC5) {
Serial.print("Decoded RC5: ");
}
else if (results->decode_type == RC6) {
Serial.print("Decoded RC6: ");
}
Serial.print(results->value, HEX);
Serial.print(" (");
Serial.print(results->bits, DEC);
Serial.println(" bits)");
}
Serial.print("Raw (");
Serial.print(count, DEC);
Serial.print("): ");
for (int i = 0; i < count; i++) {
if ((i % 2) == 1) {
Serial.print(results->rawbuf[i]*USECPERTICK, DEC);
}
else {
Serial.print(-(int)results->rawbuf[i]*USECPERTICK, DEC);
}
Serial.print(" ");
}
Serial.println("");
}
IRrecv irrecv(0);
decode_results results;
class IRsendDummy :
public IRsend
{
public:
// For testing, just log the marks/spaces
#define SENDLOG_LEN 128
int sendlog[SENDLOG_LEN];
int sendlogcnt;
IRsendDummy() :
IRsend() {
}
void reset() {
sendlogcnt = 0;
}
void mark(int time) {
sendlog[sendlogcnt] = time;
if (sendlogcnt < SENDLOG_LEN) sendlogcnt++;
}
void space(int time) {
sendlog[sendlogcnt] = -time;
if (sendlogcnt < SENDLOG_LEN) sendlogcnt++;
}
// Copies the dummy buf into the interrupt buf
void useDummyBuf() {
int last = SPACE;
irparams.rcvstate = STATE_STOP;
irparams.rawlen = 1; // Skip the gap
for (int i = 0 ; i < sendlogcnt; i++) {
if (sendlog[i] < 0) {
if (last == MARK) {
// New space
irparams.rawbuf[irparams.rawlen++] = (-sendlog[i] - MARK_EXCESS) / USECPERTICK;
last = SPACE;
}
else {
// More space
irparams.rawbuf[irparams.rawlen - 1] += -sendlog[i] / USECPERTICK;
}
}
else if (sendlog[i] > 0) {
if (last == SPACE) {
// New mark
irparams.rawbuf[irparams.rawlen++] = (sendlog[i] + MARK_EXCESS) / USECPERTICK;
last = MARK;
}
else {
// More mark
irparams.rawbuf[irparams.rawlen - 1] += sendlog[i] / USECPERTICK;
}
}
}
if (irparams.rawlen % 2) {
irparams.rawlen--; // Remove trailing space
}
}
};
IRsendDummy irsenddummy;
void verify(unsigned long val, int bits, int type) {
irsenddummy.useDummyBuf();
irrecv.decode(&results);
Serial.print("Testing ");
Serial.print(val, HEX);
if (results.value == val && results.bits == bits && results.decode_type == type) {
Serial.println(": OK");
}
else {
Serial.println(": Error");
dump(&results);
}
}
void testNEC(unsigned long val, int bits) {
irsenddummy.reset();
irsenddummy.sendNEC(val, bits);
verify(val, bits, NEC);
}
void testSony(unsigned long val, int bits) {
irsenddummy.reset();
irsenddummy.sendSony(val, bits);
verify(val, bits, SONY);
}
void testRC5(unsigned long val, int bits) {
irsenddummy.reset();
irsenddummy.sendRC5(val, bits);
verify(val, bits, RC5);
}
void testRC6(unsigned long val, int bits) {
irsenddummy.reset();
irsenddummy.sendRC6(val, bits);
verify(val, bits, RC6);
}
void test() {
Serial.println("NEC tests");
testNEC(0x00000000, 32);
testNEC(0xffffffff, 32);
testNEC(0xaaaaaaaa, 32);
testNEC(0x55555555, 32);
testNEC(0x12345678, 32);
Serial.println("Sony tests");
testSony(0xfff, 12);
testSony(0x000, 12);
testSony(0xaaa, 12);
testSony(0x555, 12);
testSony(0x123, 12);
Serial.println("RC5 tests");
testRC5(0xfff, 12);
testRC5(0x000, 12);
testRC5(0xaaa, 12);
testRC5(0x555, 12);
testRC5(0x123, 12);
Serial.println("RC6 tests");
testRC6(0xfffff, 20);
testRC6(0x00000, 20);
testRC6(0xaaaaa, 20);
testRC6(0x55555, 20);
testRC6(0x12345, 20);
}
void setup()
{
Serial.begin(9600);
test();
}
void loop() {
}

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projects/elegoo-kit-lessons/Lesson 13 IR Receiver Module/IRremote/examples/IRtest2/IRtest2.ino Executable file
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/*
* Test send/receive functions of IRremote, using a pair of Arduinos.
*
* Arduino #1 should have an IR LED connected to the send pin (3).
* Arduino #2 should have an IR detector/demodulator connected to the
* receive pin (11) and a visible LED connected to pin 3.
*
* The cycle:
* Arduino #1 will wait 2 seconds, then run through the tests.
* It repeats this forever.
* Arduino #2 will wait for at least one second of no signal
* (to synchronize with #1). It will then wait for the same test
* signals. It will log all the status to the serial port. It will
* also indicate status through the LED, which will flash each time a test
* is completed. If there is an error, it will light up for 5 seconds.
*
* The test passes if the LED flashes 19 times, pauses, and then repeats.
* The test fails if the LED lights for 5 seconds.
*
* The test software automatically decides which board is the sender and which is
* the receiver by looking for an input on the send pin, which will indicate
* the sender. You should hook the serial port to the receiver for debugging.
*
* Copyright 2010 Ken Shirriff
* http://arcfn.com
*/
#include <IRremote.h>
int RECV_PIN = 11;
int LED_PIN = 3;
IRrecv irrecv(RECV_PIN);
IRsend irsend;
decode_results results;
#define RECEIVER 1
#define SENDER 2
#define ERROR 3
int mode;
void setup()
{
Serial.begin(9600);
// Check RECV_PIN to decide if we're RECEIVER or SENDER
if (digitalRead(RECV_PIN) == HIGH) {
mode = RECEIVER;
irrecv.enableIRIn();
pinMode(LED_PIN, OUTPUT);
digitalWrite(LED_PIN, LOW);
Serial.println("Receiver mode");
}
else {
mode = SENDER;
Serial.println("Sender mode");
}
}
// Wait for the gap between tests, to synchronize with
// the sender.
// Specifically, wait for a signal followed by a gap of at last gap ms.
void waitForGap(int gap) {
Serial.println("Waiting for gap");
while (1) {
while (digitalRead(RECV_PIN) == LOW) {
}
unsigned long time = millis();
while (digitalRead(RECV_PIN) == HIGH) {
if (millis() - time > gap) {
return;
}
}
}
}
// Dumps out the decode_results structure.
// Call this after IRrecv::decode()
void dump(decode_results *results) {
int count = results->rawlen;
if (results->decode_type == UNKNOWN) {
Serial.println("Could not decode message");
}
else {
if (results->decode_type == NEC) {
Serial.print("Decoded NEC: ");
}
else if (results->decode_type == SONY) {
Serial.print("Decoded SONY: ");
}
else if (results->decode_type == RC5) {
Serial.print("Decoded RC5: ");
}
else if (results->decode_type == RC6) {
Serial.print("Decoded RC6: ");
}
Serial.print(results->value, HEX);
Serial.print(" (");
Serial.print(results->bits, DEC);
Serial.println(" bits)");
}
Serial.print("Raw (");
Serial.print(count, DEC);
Serial.print("): ");
for (int i = 0; i < count; i++) {
if ((i % 2) == 1) {
Serial.print(results->rawbuf[i]*USECPERTICK, DEC);
}
else {
Serial.print(-(int)results->rawbuf[i]*USECPERTICK, DEC);
}
Serial.print(" ");
}
Serial.println("");
}
// Test send or receive.
// If mode is SENDER, send a code of the specified type, value, and bits
// If mode is RECEIVER, receive a code and verify that it is of the
// specified type, value, and bits. For success, the LED is flashed;
// for failure, the mode is set to ERROR.
// The motivation behind this method is that the sender and the receiver
// can do the same test calls, and the mode variable indicates whether
// to send or receive.
void test(char *label, int type, unsigned long value, int bits) {
if (mode == SENDER) {
Serial.println(label);
if (type == NEC) {
irsend.sendNEC(value, bits);
}
else if (type == SONY) {
irsend.sendSony(value, bits);
}
else if (type == RC5) {
irsend.sendRC5(value, bits);
}
else if (type == RC6) {
irsend.sendRC6(value, bits);
}
else {
Serial.print(label);
Serial.println("Bad type!");
}
delay(200);
}
else if (mode == RECEIVER) {
irrecv.resume(); // Receive the next value
unsigned long max_time = millis() + 30000;
Serial.print(label);
// Wait for decode or timeout
while (!irrecv.decode(&results)) {
if (millis() > max_time) {
Serial.println("Timeout receiving data");
mode = ERROR;
return;
}
}
if (type == results.decode_type && value == results.value && bits == results.bits) {
Serial.println (": OK");
digitalWrite(LED_PIN, HIGH);
delay(20);
digitalWrite(LED_PIN, LOW);
}
else {
Serial.println(": BAD");
dump(&results);
mode = ERROR;
}
}
}
// Test raw send or receive. This is similar to the test method,
// except it send/receives raw data.
void testRaw(char *label, unsigned int *rawbuf, int rawlen) {
if (mode == SENDER) {
Serial.println(label);
irsend.sendRaw(rawbuf, rawlen, 38 /* kHz */);
delay(200);
}
else if (mode == RECEIVER ) {
irrecv.resume(); // Receive the next value
unsigned long max_time = millis() + 30000;
Serial.print(label);
// Wait for decode or timeout
while (!irrecv.decode(&results)) {
if (millis() > max_time) {
Serial.println("Timeout receiving data");
mode = ERROR;
return;
}
}
// Received length has extra first element for gap
if (rawlen != results.rawlen - 1) {
Serial.print("Bad raw length ");
Serial.println(results.rawlen, DEC);
mode = ERROR;
return;
}
for (int i = 0; i < rawlen; i++) {
long got = results.rawbuf[i+1] * USECPERTICK;
// Adjust for extra duration of marks
if (i % 2 == 0) {
got -= MARK_EXCESS;
}
else {
got += MARK_EXCESS;
}
// See if close enough, within 25%
if (rawbuf[i] * 1.25 < got || got * 1.25 < rawbuf[i]) {
Serial.println(": BAD");
dump(&results);
mode = ERROR;
return;
}
}
Serial.println (": OK");
digitalWrite(LED_PIN, HIGH);
delay(20);
digitalWrite(LED_PIN, LOW);
}
}
// This is the raw data corresponding to NEC 0x12345678
unsigned int sendbuf[] = { /* NEC format */
9000, 4500,
560, 560, 560, 560, 560, 560, 560, 1690, /* 1 */
560, 560, 560, 560, 560, 1690, 560, 560, /* 2 */
560, 560, 560, 560, 560, 1690, 560, 1690, /* 3 */
560, 560, 560, 1690, 560, 560, 560, 560, /* 4 */
560, 560, 560, 1690, 560, 560, 560, 1690, /* 5 */
560, 560, 560, 1690, 560, 1690, 560, 560, /* 6 */
560, 560, 560, 1690, 560, 1690, 560, 1690, /* 7 */
560, 1690, 560, 560, 560, 560, 560, 560, /* 8 */
560};
void loop() {
if (mode == SENDER) {
delay(2000); // Delay for more than gap to give receiver a better chance to sync.
}
else if (mode == RECEIVER) {
waitForGap(1000);
}
else if (mode == ERROR) {
// Light up for 5 seconds for error
digitalWrite(LED_PIN, HIGH);
delay(5000);
digitalWrite(LED_PIN, LOW);
mode = RECEIVER; // Try again
return;
}
// The test suite.
test("SONY1", SONY, 0x123, 12);
test("SONY2", SONY, 0x000, 12);
test("SONY3", SONY, 0xfff, 12);
test("SONY4", SONY, 0x12345, 20);
test("SONY5", SONY, 0x00000, 20);
test("SONY6", SONY, 0xfffff, 20);
test("NEC1", NEC, 0x12345678, 32);
test("NEC2", NEC, 0x00000000, 32);
test("NEC3", NEC, 0xffffffff, 32);
test("NEC4", NEC, REPEAT, 32);
test("RC51", RC5, 0x12345678, 32);
test("RC52", RC5, 0x0, 32);
test("RC53", RC5, 0xffffffff, 32);
test("RC61", RC6, 0x12345678, 32);
test("RC62", RC6, 0x0, 32);
test("RC63", RC6, 0xffffffff, 32);
// Tests of raw sending and receiving.
// First test sending raw and receiving raw.
// Then test sending raw and receiving decoded NEC
// Then test sending NEC and receiving raw
testRaw("RAW1", sendbuf, 67);
if (mode == SENDER) {
testRaw("RAW2", sendbuf, 67);
test("RAW3", NEC, 0x12345678, 32);
}
else {
test("RAW2", NEC, 0x12345678, 32);
testRaw("RAW3", sendbuf, 67);
}
}

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projects/elegoo-kit-lessons/Lesson 13 IR Receiver Module/IRremote/examples/JVCPanasonicSendDemo/JVCPanasonicSendDemo.ino Executable file
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/*
* IRremote: IRsendDemo - demonstrates sending IR codes with IRsend
* An IR LED must be connected to Arduino PWM pin 3.
* Version 0.1 July, 2009
* Copyright 2009 Ken Shirriff
* http://arcfn.com
* JVC and Panasonic protocol added by Kristian Lauszus (Thanks to zenwheel and other people at the original blog post)
*/
#include <IRremote.h>
#define PanasonicAddress 0x4004 // Panasonic address (Pre data)
#define PanasonicPower 0x100BCBD // Panasonic Power button
#define JVCPower 0xC5E8
IRsend irsend;
void setup()
{
}
void loop() {
irsend.sendPanasonic(PanasonicAddress,PanasonicPower); // This should turn your TV on and off
irsend.sendJVC(JVCPower, 16,0); // hex value, 16 bits, no repeat
delayMicroseconds(50); // see http://www.sbprojects.com/knowledge/ir/jvc.php for information
irsend.sendJVC(JVCPower, 16,1); // hex value, 16 bits, repeat
delayMicroseconds(50);
}

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projects/elegoo-kit-lessons/Lesson 13 IR Receiver Module/IRremote/keywords.txt Executable file
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#######################################
# Syntax Coloring Map For IRremote
#######################################
#######################################
# Datatypes (KEYWORD1)
#######################################
decode_results KEYWORD1
IRrecv KEYWORD1
IRsend KEYWORD1
#######################################
# Methods and Functions (KEYWORD2)
#######################################
blink13 KEYWORD2
decode KEYWORD2
enableIRIn KEYWORD2
resume KEYWORD2
enableIROut KEYWORD2
sendNEC KEYWORD2
sendSony KEYWORD2
sendSanyo KEYWORD2
sendMitsubishi KEYWORD2
sendRaw KEYWORD2
sendRC5 KEYWORD2
sendRC6 KEYWORD2
sendDISH KEYWORD2
sendSharp KEYWORD2
sendSharpRaw KEYWORD2
sendPanasonic KEYWORD2
sendJVC KEYWORD2
#
#######################################
# Constants (LITERAL1)
#######################################
NEC LITERAL1
SONY LITERAL1
SANYO LITERAL1
MITSUBISHI LITERAL1
RC5 LITERAL1
RC6 LITERAL1
DISH LITERAL1
SHARP LITERAL1
PANASONIC LITERAL1
JVC LITERAL1
UNKNOWN LITERAL1
REPEAT LITERAL1

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projects/elegoo-kit-lessons/Lesson 13 IR Receiver Module/IRremote/readme Executable file
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This is the IRremote library for the Arduino.
To download from github (http://github.com/shirriff/Arduino-IRremote), click on the "Downloads" link in the upper right, click "Download as zip", and get a zip file. Unzip it and rename the directory shirriff-Arduino-IRremote-nnn to IRremote
To install, move the downloaded IRremote directory to:
arduino-1.x/libraries/IRremote
where arduino-1.x is your Arduino installation directory
After installation you should have files such as:
arduino-1.x/libraries/IRremote/IRremote.cpp
For details on the library see the Wiki on github or the blog post http://arcfn.com/2009/08/multi-protocol-infrared-remote-library.html
Copyright 2009-2012 Ken Shirriff

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projects/elegoo-kit-lessons/Lesson 14 LCD Display/HelloWorld/HelloWorld.ino Executable file
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//www.elegoo.com
//2016.12.9
/*
LiquidCrystal Library - Hello World
Demonstrates the use a 16x2 LCD display. The LiquidCrystal
library works with all LCD displays that are compatible with the
Hitachi HD44780 driver. There are many of them out there, and you
can usually tell them by the 16-pin interface.
This sketch prints "Hello World!" to the LCD
and shows the time.
The circuit:
* LCD RS pin to digital pin 7
* LCD Enable pin to digital pin 8
* LCD D4 pin to digital pin 9
* LCD D5 pin to digital pin 10
* LCD D6 pin to digital pin 11
* LCD D7 pin to digital pin 12
* LCD R/W pin to ground
* LCD VSS pin to ground
* LCD VCC pin to 5V
* 10K resistor:
* ends to +5V and ground
* wiper to LCD VO pin (pin 3)
Library originally added 18 Apr 2008
by David A. Mellis
library modified 5 Jul 2009
by Limor Fried (http://www.ladyada.net)
example added 9 Jul 2009
by Tom Igoe
modified 22 Nov 2010
by Tom Igoe
This example code is in the public domain.
http://www.arduino.cc/en/Tutorial/LiquidCrystal
*/
// include the library code:
#include <LiquidCrystal.h>
// initialize the library with the numbers of the interface pins
LiquidCrystal lcd(7, 8, 9, 10, 11, 12);
void setup() {
// set up the LCD's number of columns and rows:
lcd.begin(16, 2);
// Print a message to the LCD.
lcd.print("Hello, World!");
}
void loop() {
// set the cursor to column 0, line 1
// (note: line 1 is the second row, since counting begins with 0):
lcd.setCursor(0, 1);
// print the number of seconds since reset:
lcd.print(millis() / 1000);
}

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projects/elegoo-kit-lessons/Lesson 15 Thermometer/LiquidCrystal.zip Executable file
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projects/elegoo-kit-lessons/Lesson 15 Thermometer/Thermometer/Thermometer.ino Executable file
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//www.elegoo.com
//2016.12.9
#include <LiquidCrystal.h>
int tempPin = 0;
// BS E D4 D5 D6 D7
LiquidCrystal lcd(7, 8, 9, 10, 11, 12);
void setup()
{
lcd.begin(16, 2);
}
void loop()
{
int tempReading = analogRead(tempPin);
// This is OK
double tempK = log(10000.0 * ((1024.0 / tempReading - 1)));
tempK = 1 / (0.001129148 + (0.000234125 + (0.0000000876741 * tempK * tempK )) * tempK ); // Temp Kelvin
float tempC = tempK - 273.15; // Convert Kelvin to Celcius
float tempF = (tempC * 9.0)/ 5.0 + 32.0; // Convert Celcius to Fahrenheit
/* replaced
float tempVolts = tempReading * 5.0 / 1024.0;
float tempC = (tempVolts - 0.5) * 10.0;
float tempF = tempC * 9.0 / 5.0 + 32.0;
*/
// Display Temperature in C
lcd.setCursor(0, 0);
lcd.print("Temp C ");
// Display Temperature in F
//lcd.print("Temp F ");
lcd.setCursor(6, 0);
// Display Temperature in C
lcd.print(tempC);
// Display Temperature in F
//lcd.print(tempF);
delay(500);
}

37
projects/elegoo-kit-lessons/Lesson 16 Eight LED with 74HC595/Eight_LED_with_74HC595_Flash_LED/Eight_LED_with_74HC595_Flash_LED.ino Executable file
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//www.elegoo.com
//2016.12.9
int tDelay = 100;
int latchPin = 11; // (11) ST_CP [RCK] on 74HC595
int clockPin = 9; // (9) SH_CP [SCK] on 74HC595
int dataPin = 12; // (12) DS [S1] on 74HC595
byte leds = 0;
void updateShiftRegister()
{
digitalWrite(latchPin, LOW);
shiftOut(dataPin, clockPin, LSBFIRST, leds);
digitalWrite(latchPin, HIGH);
}
void setup()
{
pinMode(latchPin, OUTPUT);
pinMode(dataPin, OUTPUT);
pinMode(clockPin, OUTPUT);
}
void loop()
{
leds = 0;
updateShiftRegister();
delay(tDelay);
for (int i = 0; i < 8; i++)
{
bitSet(leds, i);
updateShiftRegister();
delay(tDelay);
}
}

48
projects/elegoo-kit-lessons/Lesson 17 The Serial Monitor/The_Serial_Monitor/The_Serial_Monitor.ino Executable file
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//www.elegoo.com
//2016.12.9
int latchPin = 11;
int clockPin = 9;
int dataPin = 12;
byte leds = 0;
void updateShiftRegister()
{
digitalWrite(latchPin, LOW);
shiftOut(dataPin, clockPin, LSBFIRST, leds);
digitalWrite(latchPin, HIGH);
}
void setup()
{
pinMode(latchPin, OUTPUT);
pinMode(dataPin, OUTPUT);
pinMode(clockPin, OUTPUT);
updateShiftRegister();
Serial.begin(9600);
while (! Serial); // Wait untilSerial is ready - Leonardo
Serial.println("Enter LED Number 0 to 7 or 'x' to clear");
}
void loop()
{
if (Serial.available())
{
char ch = Serial.read();
if (ch >= '0' && ch <= '7')
{
int led = ch - '0';
bitSet(leds, led);
updateShiftRegister();
Serial.print("Turned on LED ");
Serial.println(led);
}
if (ch == 'x')
{
leds = 0;
updateShiftRegister();
Serial.println("Cleared");
}
}
}

36
projects/elegoo-kit-lessons/Lesson 18 Photocell/Photocell/Photocell.ino Executable file
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//www.elegoo.com
//2016.12.9
int lightPin = 0;
int latchPin = 11;
int clockPin = 9;
int dataPin = 12;
int leds = 0;
void setup()
{
pinMode(latchPin, OUTPUT);
pinMode(dataPin, OUTPUT);
pinMode(clockPin, OUTPUT);
}
void updateShiftRegister()
{
digitalWrite(latchPin, LOW);
shiftOut(dataPin, clockPin, LSBFIRST, leds);
digitalWrite(latchPin, HIGH);
}
void loop()
{
int reading = analogRead(lightPin);
int numLEDSLit = reading / 57; //1023 / 9 / 2
if (numLEDSLit > 8) numLEDSLit = 8;
leds = 0; // no LEDs lit to start
for (int i = 0; i < numLEDSLit; i++)
{
leds = leds + (1 << i); // sets the i'th bit
}
updateShiftRegister();
}

55
projects/elegoo-kit-lessons/Lesson 19 74HC595 And Segment Display/_75hc/_75hc.ino Executable file
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//www.elegoo.com
//2016.12.12
// define the LED digit patterns, from 0 - 9
// 1 = LED on, 0 = LED off, in this order:
// 74HC595 pin Q0,Q1,Q2,Q3,Q4,Q5,Q6,Q7
// Mapping to a,b,c,d,e,f,g of Seven-Segment LED
byte seven_seg_digits[10] = { B11111100, // = 0
B01100000, // = 1
B11011010, // = 2
B11110010, // = 3
B01100110, // = 4
B10110110, // = 5
B10111110, // = 6
B11100000, // = 7
B11111110, // = 8
B11100110 // = 9
};
// connect to the ST_CP of 74HC595 (pin 3,latch pin)
int latchPin = 3;
// connect to the SH_CP of 74HC595 (pin 4, clock pin)
int clockPin = 4;
// connect to the DS of 74HC595 (pin 2)
int dataPin = 2;
void setup() {
// Set latchPin, clockPin, dataPin as output
pinMode(latchPin, OUTPUT);
pinMode(clockPin, OUTPUT);
pinMode(dataPin, OUTPUT);
}
// display a number on the digital segment display
void sevenSegWrite(byte digit) {
// set the latchPin to low potential, before sending data
digitalWrite(latchPin, LOW);
// the original data (bit pattern)
shiftOut(dataPin, clockPin, LSBFIRST, seven_seg_digits[digit]);
// set the latchPin to high potential, after sending data
digitalWrite(latchPin, HIGH);
}
void loop() {
// count from 9 to 0
for (byte digit = 10; digit > 0; --digit) {
delay(1000);
sevenSegWrite(digit - 1);
}
// suspend 4 seconds
delay(3000);
}

56
projects/elegoo-kit-lessons/Lesson 20 Four Digital Seven Segment Display/Four_Digital/Four_Digital.ino Executable file
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//www.elegoo.com
//2016.12.12
int latch=9; //74HC595 pin 9 STCP
int clock=10; //74HC595 pin 10 SHCP
int data=8; //74HC595 pin 8 DS
unsigned char table[]=
{0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c
,0x39,0x5e,0x79,0x71,0x00};
void setup() {
pinMode(latch,OUTPUT);
pinMode(clock,OUTPUT);
pinMode(data,OUTPUT);
}
void Display(unsigned char num)
{
digitalWrite(latch,LOW);
shiftOut(data,clock,MSBFIRST,table[num]);
digitalWrite(latch,HIGH);
}
void loop() {
Display(1);
delay(500);
Display(2);
delay(500);
Display(3);
delay(500);
Display(4);
delay(500);
Display(5);
delay(500);
Display(6);
delay(500);
Display(7);
delay(500);
Display(8);
delay(500);
Display(9);
delay(500);
Display(10);
delay(500);
Display(11);
delay(500);
Display(12);
delay(500);
Display(13);
delay(500);
Display(14);
delay(500);
Display(15);
delay(500);
}

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projects/elegoo-kit-lessons/Lesson 21 DC Motors/DC_Motor/DC_Motor.ino Executable file
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//www.elegoo.com
//2016.12.12
/************************
Exercise the motor using
the L293D chip
************************/
#define ENABLE 5
#define DIRA 3
#define DIRB 4
int i;
void setup() {
//---set pin direction
pinMode(ENABLE,OUTPUT);
pinMode(DIRA,OUTPUT);
pinMode(DIRB,OUTPUT);
Serial.begin(9600);
}
void loop() {
//---back and forth example
Serial.println("One way, then reverse");
digitalWrite(ENABLE,HIGH); // enable on
for (i=0;i<5;i++) {
digitalWrite(DIRA,HIGH); //one way
digitalWrite(DIRB,LOW);
delay(500);
digitalWrite(DIRA,LOW); //reverse
digitalWrite(DIRB,HIGH);
delay(500);
}
digitalWrite(ENABLE,LOW); // disable
delay(2000);
Serial.println("fast Slow example");
//---fast/slow stop example
digitalWrite(ENABLE,HIGH); //enable on
digitalWrite(DIRA,HIGH); //one way
digitalWrite(DIRB,LOW);
delay(3000);
digitalWrite(ENABLE,LOW); //slow stop
delay(1000);
digitalWrite(ENABLE,HIGH); //enable on
digitalWrite(DIRA,LOW); //one way
digitalWrite(DIRB,HIGH);
delay(3000);
digitalWrite(DIRA,LOW); //fast stop
delay(2000);
Serial.println("PWM full then slow");
//---PWM example, full speed then slow
analogWrite(ENABLE,255); //enable on
digitalWrite(DIRA,HIGH); //one way
digitalWrite(DIRB,LOW);
delay(2000);
analogWrite(ENABLE,180); //half speed
delay(2000);
analogWrite(ENABLE,128); //half speed
delay(2000);
analogWrite(ENABLE,50); //half speed
delay(2000);
analogWrite(ENABLE,128); //half speed
delay(2000);
analogWrite(ENABLE,180); //half speed
delay(2000);
analogWrite(ENABLE,255); //half speed
delay(2000);
digitalWrite(ENABLE,LOW); //all done
delay(10000);
}

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projects/elegoo-kit-lessons/Lesson 22 Relay/Relay/Relay.ino Executable file
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//www.elegoo.com
//2016.12.12
/************************
Exercise the motor using
the L293D chip
************************/
#define ENABLE 5
#define DIRA 3
#define DIRB 4
int i;
void setup() {
//---set pin direction
pinMode(ENABLE,OUTPUT);
pinMode(DIRA,OUTPUT);
pinMode(DIRB,OUTPUT);
Serial.begin(9600);
}
void loop() {
//---back and forth example
Serial.println("One way, then reverse");
digitalWrite(ENABLE,HIGH); // enable on
for (i=0;i<5;i++) {
digitalWrite(DIRA,HIGH); //one way
digitalWrite(DIRB,LOW);
delay(750);
digitalWrite(DIRA,LOW); //reverse
digitalWrite(DIRB,HIGH);
delay(750);
}
digitalWrite(ENABLE,LOW); // disable
delay(3000);
for (i=0;i<5;i++) {
digitalWrite(DIRA,HIGH); //one way
digitalWrite(DIRB,LOW);
delay(750);
digitalWrite(DIRA,LOW); //reverse
digitalWrite(DIRB,HIGH);
delay(750);
}
digitalWrite(ENABLE,LOW); // disable
delay(3000);
}

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projects/elegoo-kit-lessons/Lesson 23 Stepper Motor/Stepper.zip Executable file
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projects/elegoo-kit-lessons/Lesson 23 Stepper Motor/stepper_oneRevolution/stepper_oneRevolution.ino Executable file
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//www.elegoo.com
//2016.12.12
/*
Stepper Motor Control - one revolution
This program drives a unipolar or bipolar stepper motor.
The motor is attached to digital pins 8 - 11 of the Arduino.
The motor should revolve one revolution in one direction, then
one revolution in the other direction.
*/
#include <Stepper.h>
const int stepsPerRevolution = 1500; // change this to fit the number of steps per revolution
// initialize the stepper library on pins 8 through 11:
Stepper myStepper(stepsPerRevolution, 8, 10, 9, 11);
void setup() {
// set the speed at 20 rpm:
myStepper.setSpeed(20);
// initialize the serial port:
Serial.begin(9600);
}
void loop() {
// step one revolution in one direction:
Serial.println("clockwise");
myStepper.step(stepsPerRevolution);
delay(500);
// step one revolution in the other direction:
Serial.println("counterclockwise");
myStepper.step(-stepsPerRevolution);
delay(500);
}

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projects/elegoo-kit-lessons/Lesson 24 Controlling Stepper Motor With Remote/IRremote.zip Executable file
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projects/elegoo-kit-lessons/Lesson 24 Controlling Stepper Motor With Remote/With_Remote/With_Remote.ino Executable file
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//www.elegoo.com
//2016.12.12
#include "Stepper.h"
#include "IRremote.h"
/*----- Variables, Pins -----*/
#define STEPS 32 // Number of steps per revolution of Internal shaft
int Steps2Take; // 2048 = 1 Revolution
int receiver = 12; // Signal Pin of IR receiver to Arduino Digital Pin 6
/*-----( Declare objects )-----*/
// Setup of proper sequencing for Motor Driver Pins
// In1, In2, In3, In4 in the sequence 1-3-2-4
Stepper small_stepper(STEPS, 8, 10, 9, 11);
IRrecv irrecv(receiver); // create instance of 'irrecv'
decode_results results; // create instance of 'decode_results'
void setup()
{
irrecv.enableIRIn(); // Start the receiver
}
void loop()
{
if (irrecv.decode(&results)) // have we received an IR signal?
{
switch(results.value)
{
case 0xFFA857: // VOL+ button pressed
small_stepper.setSpeed(500); //Max seems to be 500
Steps2Take = 2048; // Rotate CW
small_stepper.step(Steps2Take);
delay(2000);
break;
case 0xFF629D: // VOL- button pressed
small_stepper.setSpeed(500);
Steps2Take = -2048; // Rotate CCW
small_stepper.step(Steps2Take);
delay(2000);
break;
}
irrecv.resume(); // receive the next value
digitalWrite(8, LOW);
digitalWrite(9, LOW);
digitalWrite(10, LOW);
digitalWrite(11, LOW);
}
}/* --end main loop -- */

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projects/elegoo-kit-lessons/Lesson 4 RGB LED/RGB_LED/RGB_LED.ino Executable file
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//www.elegoo.com
//2016.12.8
// Define Pins
#define BLUE 3
#define GREEN 5
#define RED 6
void setup()
{
pinMode(RED, OUTPUT);
pinMode(GREEN, OUTPUT);
pinMode(BLUE, OUTPUT);
digitalWrite(RED, HIGH);
digitalWrite(GREEN, LOW);
digitalWrite(BLUE, LOW);
}
// define variables
int redValue;
int greenValue;
int blueValue;
// main loop
void loop()
{
#define delayTime 10 // fading time between colors
redValue = 255; // choose a value between 1 and 255 to change the color.
greenValue = 0;
blueValue = 0;
// this is unnecessary as we've either turned on RED in SETUP
// or in the previous loop ... regardless, this turns RED off
// analogWrite(RED, 0);
// delay(1000);
for(int i = 0; i < 255; i += 1) // fades out red bring green full when i=255
{
redValue -= 1;
greenValue += 1;
// The following was reversed, counting in the wrong directions
// analogWrite(RED, 255 - redValue);
// analogWrite(GREEN, 255 - greenValue);
analogWrite(RED, redValue);
analogWrite(GREEN, greenValue);
delay(delayTime);
}
redValue = 0;
greenValue = 255;
blueValue = 0;
for(int i = 0; i < 255; i += 1) // fades out green bring blue full when i=255
{
greenValue -= 1;
blueValue += 1;
// The following was reversed, counting in the wrong directions
// analogWrite(GREEN, 255 - greenValue);
// analogWrite(BLUE, 255 - blueValue);
analogWrite(GREEN, greenValue);
analogWrite(BLUE, blueValue);
delay(delayTime);
}
redValue = 0;
greenValue = 0;
blueValue = 255;
for(int i = 0; i < 255; i += 1) // fades out blue bring red full when i=255
{
// The following code has been rearranged to match the other two similar sections
blueValue -= 1;
redValue += 1;
// The following was reversed, counting in the wrong directions
// analogWrite(BLUE, 255 - blueValue);
// analogWrite(RED, 255 - redValue);
analogWrite(BLUE, blueValue);
analogWrite(RED, redValue);
delay(delayTime);
}
}

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projects/elegoo-kit-lessons/Lesson 5 Digital Inputs/Digital_Inputs/Digital_Inputs.ino Executable file
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//www.elegoo.com
//2016.12.08
int ledPin = 5;
int buttonApin = 9;
int buttonBpin = 8;
byte leds = 0;
void setup()
{
pinMode(ledPin, OUTPUT);
pinMode(buttonApin, INPUT_PULLUP);
pinMode(buttonBpin, INPUT_PULLUP);
}
void loop()
{
if (digitalRead(buttonApin) == LOW)
{
digitalWrite(ledPin, HIGH);
}
if (digitalRead(buttonBpin) == LOW)
{
digitalWrite(ledPin, LOW);
}
}

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projects/elegoo-kit-lessons/Lesson 6 Making Sounds/active/active.ino Executable file
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//www.elegoo.com
//2016.12.08
int buzzer = 12;//the pin of the active buzzer
void setup()
{
pinMode(buzzer,OUTPUT);//initialize the buzzer pin as an output
}
void loop()
{
unsigned char i;
while(1)
{
//output an frequency
for(i=0;i<80;i++)
{
digitalWrite(buzzer,HIGH);
delay(1);//wait for 1ms
digitalWrite(buzzer,LOW);
delay(1);//wait for 1ms
}
//output another frequency
for(i=0;i<100;i++)
{
digitalWrite(buzzer,HIGH);
delay(2);//wait for 2ms
digitalWrite(buzzer,LOW);
delay(2);//wait for 2ms
}
}
}

26
projects/elegoo-kit-lessons/Lesson 7 Passive Buzzer/passive_buzzer/passive_buzzer.ino Executable file
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//www.elegoo.com
//2016.12.08
#include "pitches.h"
// notes in the melody:
int melody[] = {
NOTE_C5, NOTE_D5, NOTE_E5, NOTE_F5, NOTE_G5, NOTE_A5, NOTE_B5, NOTE_C6};
int duration = 500; // 500 miliseconds
void setup() {
}
void loop() {
for (int thisNote = 0; thisNote < 8; thisNote++) {
// pin8 output the voice, every scale is 0.5 sencond
tone(8, melody[thisNote], duration);
// Output the voice after several minutes
delay(1000);
}
// restart after two seconds
delay(2000);
}

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projects/elegoo-kit-lessons/Lesson 8 Ball Switch/Ball_Switch/Ball_Switch.ino Executable file
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//www.elegoo.com
//2016.12.08
/*****************************************/
const int ledPin = 13;//the led attach to
void setup()
{
pinMode(ledPin,OUTPUT);//initialize the ledPin as an output
pinMode(2,INPUT);
digitalWrite(2, HIGH);
}
/******************************************/
void loop()
{
int digitalVal = digitalRead(2);
if(HIGH == digitalVal)
{
digitalWrite(ledPin,LOW);//turn the led off
}
else
{
digitalWrite(ledPin,HIGH);//turn the led on
}
}
/**********************************************/

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projects/elegoo-kit-lessons/Lesson 9 Servo/Servo 2/README.adoc Executable file
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= Servo Library for Arduino =
This library allows an Arduino board to control RC (hobby) servo motors.
For more information about this library please visit us at
http://www.arduino.cc/en/Reference/Servo
== License ==
Copyright (c) 2013 Arduino LLC. All right reserved.
Copyright (c) 2009 Michael Margolis. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

27
projects/elegoo-kit-lessons/Lesson 9 Servo/Servo 2/examples/Knob/Knob.ino Executable file
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/*
Controlling a servo position using a potentiometer (variable resistor)
by Michal Rinott <http://people.interaction-ivrea.it/m.rinott>
modified on 8 Nov 2013
by Scott Fitzgerald
http://www.arduino.cc/en/Tutorial/Knob
*/
#include <Servo.h>
Servo myservo; // create servo object to control a servo
int potpin = 0; // analog pin used to connect the potentiometer
int val; // variable to read the value from the analog pin
void setup() {
myservo.attach(9); // attaches the servo on pin 9 to the servo object
}
void loop() {
val = analogRead(potpin); // reads the value of the potentiometer (value between 0 and 1023)
val = map(val, 0, 1023, 0, 180); // scale it to use it with the servo (value between 0 and 180)
myservo.write(val); // sets the servo position according to the scaled value
delay(15); // waits for the servo to get there
}

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projects/elegoo-kit-lessons/Lesson 9 Servo/Servo 2/examples/Sweep/Sweep.ino Executable file
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/* Sweep
by BARRAGAN <http://barraganstudio.com>
This example code is in the public domain.
modified 8 Nov 2013
by Scott Fitzgerald
http://www.arduino.cc/en/Tutorial/Sweep
*/
#include <Servo.h>
Servo myservo; // create servo object to control a servo
// twelve servo objects can be created on most boards
int pos = 0; // variable to store the servo position
void setup() {
myservo.attach(9); // attaches the servo on pin 9 to the servo object
}
void loop() {
for (pos = 0; pos <= 180; pos += 1) { // goes from 0 degrees to 180 degrees
// in steps of 1 degree
myservo.write(pos); // tell servo to go to position in variable 'pos'
delay(15); // waits 15ms for the servo to reach the position
}
for (pos = 180; pos >= 0; pos -= 1) { // goes from 180 degrees to 0 degrees
myservo.write(pos); // tell servo to go to position in variable 'pos'
delay(15); // waits 15ms for the servo to reach the position
}
}

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projects/elegoo-kit-lessons/Lesson 9 Servo/Servo 2/keywords.txt Executable file
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#######################################
# Syntax Coloring Map Servo
#######################################
#######################################
# Datatypes (KEYWORD1)
#######################################
Servo KEYWORD1 Servo
#######################################
# Methods and Functions (KEYWORD2)
#######################################
attach KEYWORD2
detach KEYWORD2
write KEYWORD2
read KEYWORD2
attached KEYWORD2
writeMicroseconds KEYWORD2
readMicroseconds KEYWORD2
#######################################
# Constants (LITERAL1)
#######################################

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projects/elegoo-kit-lessons/Lesson 9 Servo/Servo 2/library.properties Executable file
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name=Servo
version=1.1.2
author=Michael Margolis, Arduino
maintainer=Arduino <info@arduino.cc>
sentence=Allows Arduino/Genuino boards to control a variety of servo motors.
paragraph=This library can control a great number of servos.<br />It makes careful use of timers: the library can control 12 servos using only 1 timer.<br />On the Arduino Due you can control up to 60 servos.<br />
category=Device Control
url=http://www.arduino.cc/en/Reference/Servo
architectures=avr,sam,samd

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projects/elegoo-kit-lessons/Lesson 9 Servo/Servo 2/src/Servo.h Executable file
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/*
Servo.h - Interrupt driven Servo library for Arduino using 16 bit timers- Version 2
Copyright (c) 2009 Michael Margolis. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
A servo is activated by creating an instance of the Servo class passing
the desired pin to the attach() method.
The servos are pulsed in the background using the value most recently
written using the write() method.
Note that analogWrite of PWM on pins associated with the timer are
disabled when the first servo is attached.
Timers are seized as needed in groups of 12 servos - 24 servos use two
timers, 48 servos will use four.
The sequence used to sieze timers is defined in timers.h
The methods are:
Servo - Class for manipulating servo motors connected to Arduino pins.
attach(pin ) - Attaches a servo motor to an i/o pin.
attach(pin, min, max ) - Attaches to a pin setting min and max values in microseconds
default min is 544, max is 2400
write() - Sets the servo angle in degrees. (invalid angle that is valid as pulse in microseconds is treated as microseconds)
writeMicroseconds() - Sets the servo pulse width in microseconds
read() - Gets the last written servo pulse width as an angle between 0 and 180.
readMicroseconds() - Gets the last written servo pulse width in microseconds. (was read_us() in first release)
attached() - Returns true if there is a servo attached.
detach() - Stops an attached servos from pulsing its i/o pin.
*/
#ifndef Servo_h
#define Servo_h
#include <inttypes.h>
/*
* Defines for 16 bit timers used with Servo library
*
* If _useTimerX is defined then TimerX is a 16 bit timer on the current board
* timer16_Sequence_t enumerates the sequence that the timers should be allocated
* _Nbr_16timers indicates how many 16 bit timers are available.
*/
// Architecture specific include
#if defined(ARDUINO_ARCH_AVR)
#include "avr/ServoTimers.h"
#elif defined(ARDUINO_ARCH_SAM)
#include "sam/ServoTimers.h"
#elif defined(ARDUINO_ARCH_SAMD)
#include "samd/ServoTimers.h"
#else
#error "This library only supports boards with an AVR, SAM or SAMD processor."
#endif
#define Servo_VERSION 2 // software version of this library
#define MIN_PULSE_WIDTH 544 // the shortest pulse sent to a servo
#define MAX_PULSE_WIDTH 2400 // the longest pulse sent to a servo
#define DEFAULT_PULSE_WIDTH 1500 // default pulse width when servo is attached
#define REFRESH_INTERVAL 20000 // minumim time to refresh servos in microseconds
#define SERVOS_PER_TIMER 12 // the maximum number of servos controlled by one timer
#define MAX_SERVOS (_Nbr_16timers * SERVOS_PER_TIMER)
#define INVALID_SERVO 255 // flag indicating an invalid servo index
typedef struct {
uint8_t nbr :6 ; // a pin number from 0 to 63
uint8_t isActive :1 ; // true if this channel is enabled, pin not pulsed if false
} ServoPin_t ;
typedef struct {
ServoPin_t Pin;
volatile unsigned int ticks;
} servo_t;
class Servo
{
public:
Servo();
uint8_t attach(int pin); // attach the given pin to the next free channel, sets pinMode, returns channel number or 0 if failure
uint8_t attach(int pin, int min, int max); // as above but also sets min and max values for writes.
void detach();
void write(int value); // if value is < 200 its treated as an angle, otherwise as pulse width in microseconds
void writeMicroseconds(int value); // Write pulse width in microseconds
int read(); // returns current pulse width as an angle between 0 and 180 degrees
int readMicroseconds(); // returns current pulse width in microseconds for this servo (was read_us() in first release)
bool attached(); // return true if this servo is attached, otherwise false
private:
uint8_t servoIndex; // index into the channel data for this servo
int8_t min; // minimum is this value times 4 added to MIN_PULSE_WIDTH
int8_t max; // maximum is this value times 4 added to MAX_PULSE_WIDTH
};
#endif

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projects/elegoo-kit-lessons/Lesson 9 Servo/Servo 2/src/avr/Servo.cpp Executable file
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/*
Servo.cpp - Interrupt driven Servo library for Arduino using 16 bit timers- Version 2
Copyright (c) 2009 Michael Margolis. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#if defined(ARDUINO_ARCH_AVR)
#include <avr/interrupt.h>
#include <Arduino.h>
#include "Servo.h"
#define usToTicks(_us) (( clockCyclesPerMicrosecond()* _us) / 8) // converts microseconds to tick (assumes prescale of 8) // 12 Aug 2009
#define ticksToUs(_ticks) (( (unsigned)_ticks * 8)/ clockCyclesPerMicrosecond() ) // converts from ticks back to microseconds
#define TRIM_DURATION 2 // compensation ticks to trim adjust for digitalWrite delays // 12 August 2009
//#define NBR_TIMERS (MAX_SERVOS / SERVOS_PER_TIMER)
static servo_t servos[MAX_SERVOS]; // static array of servo structures
static volatile int8_t Channel[_Nbr_16timers ]; // counter for the servo being pulsed for each timer (or -1 if refresh interval)
uint8_t ServoCount = 0; // the total number of attached servos
// convenience macros
#define SERVO_INDEX_TO_TIMER(_servo_nbr) ((timer16_Sequence_t)(_servo_nbr / SERVOS_PER_TIMER)) // returns the timer controlling this servo
#define SERVO_INDEX_TO_CHANNEL(_servo_nbr) (_servo_nbr % SERVOS_PER_TIMER) // returns the index of the servo on this timer
#define SERVO_INDEX(_timer,_channel) ((_timer*SERVOS_PER_TIMER) + _channel) // macro to access servo index by timer and channel
#define SERVO(_timer,_channel) (servos[SERVO_INDEX(_timer,_channel)]) // macro to access servo class by timer and channel
#define SERVO_MIN() (MIN_PULSE_WIDTH - this->min * 4) // minimum value in uS for this servo
#define SERVO_MAX() (MAX_PULSE_WIDTH - this->max * 4) // maximum value in uS for this servo
/************ static functions common to all instances ***********************/
static inline void handle_interrupts(timer16_Sequence_t timer, volatile uint16_t *TCNTn, volatile uint16_t* OCRnA)
{
if( Channel[timer] < 0 )
*TCNTn = 0; // channel set to -1 indicated that refresh interval completed so reset the timer
else{
if( SERVO_INDEX(timer,Channel[timer]) < ServoCount && SERVO(timer,Channel[timer]).Pin.isActive == true )
digitalWrite( SERVO(timer,Channel[timer]).Pin.nbr,LOW); // pulse this channel low if activated
}
Channel[timer]++; // increment to the next channel
if( SERVO_INDEX(timer,Channel[timer]) < ServoCount && Channel[timer] < SERVOS_PER_TIMER) {
*OCRnA = *TCNTn + SERVO(timer,Channel[timer]).ticks;
if(SERVO(timer,Channel[timer]).Pin.isActive == true) // check if activated
digitalWrite( SERVO(timer,Channel[timer]).Pin.nbr,HIGH); // its an active channel so pulse it high
}
else {
// finished all channels so wait for the refresh period to expire before starting over
if( ((unsigned)*TCNTn) + 4 < usToTicks(REFRESH_INTERVAL) ) // allow a few ticks to ensure the next OCR1A not missed
*OCRnA = (unsigned int)usToTicks(REFRESH_INTERVAL);
else
*OCRnA = *TCNTn + 4; // at least REFRESH_INTERVAL has elapsed
Channel[timer] = -1; // this will get incremented at the end of the refresh period to start again at the first channel
}
}
#ifndef WIRING // Wiring pre-defines signal handlers so don't define any if compiling for the Wiring platform
// Interrupt handlers for Arduino
#if defined(_useTimer1)
SIGNAL (TIMER1_COMPA_vect)
{
handle_interrupts(_timer1, &TCNT1, &OCR1A);
}
#endif
#if defined(_useTimer3)
SIGNAL (TIMER3_COMPA_vect)
{
handle_interrupts(_timer3, &TCNT3, &OCR3A);
}
#endif
#if defined(_useTimer4)
SIGNAL (TIMER4_COMPA_vect)
{
handle_interrupts(_timer4, &TCNT4, &OCR4A);
}
#endif
#if defined(_useTimer5)
SIGNAL (TIMER5_COMPA_vect)
{
handle_interrupts(_timer5, &TCNT5, &OCR5A);
}
#endif
#elif defined WIRING
// Interrupt handlers for Wiring
#if defined(_useTimer1)
void Timer1Service()
{
handle_interrupts(_timer1, &TCNT1, &OCR1A);
}
#endif
#if defined(_useTimer3)
void Timer3Service()
{
handle_interrupts(_timer3, &TCNT3, &OCR3A);
}
#endif
#endif
static void initISR(timer16_Sequence_t timer)
{
#if defined (_useTimer1)
if(timer == _timer1) {
TCCR1A = 0; // normal counting mode
TCCR1B = _BV(CS11); // set prescaler of 8
TCNT1 = 0; // clear the timer count
#if defined(__AVR_ATmega8__)|| defined(__AVR_ATmega128__)
TIFR |= _BV(OCF1A); // clear any pending interrupts;
TIMSK |= _BV(OCIE1A) ; // enable the output compare interrupt
#else
// here if not ATmega8 or ATmega128
TIFR1 |= _BV(OCF1A); // clear any pending interrupts;
TIMSK1 |= _BV(OCIE1A) ; // enable the output compare interrupt
#endif
#if defined(WIRING)
timerAttach(TIMER1OUTCOMPAREA_INT, Timer1Service);
#endif
}
#endif
#if defined (_useTimer3)
if(timer == _timer3) {
TCCR3A = 0; // normal counting mode
TCCR3B = _BV(CS31); // set prescaler of 8
TCNT3 = 0; // clear the timer count
#if defined(__AVR_ATmega128__)
TIFR |= _BV(OCF3A); // clear any pending interrupts;
ETIMSK |= _BV(OCIE3A); // enable the output compare interrupt
#else
TIFR3 = _BV(OCF3A); // clear any pending interrupts;
TIMSK3 = _BV(OCIE3A) ; // enable the output compare interrupt
#endif
#if defined(WIRING)
timerAttach(TIMER3OUTCOMPAREA_INT, Timer3Service); // for Wiring platform only
#endif
}
#endif
#if defined (_useTimer4)
if(timer == _timer4) {
TCCR4A = 0; // normal counting mode
TCCR4B = _BV(CS41); // set prescaler of 8
TCNT4 = 0; // clear the timer count
TIFR4 = _BV(OCF4A); // clear any pending interrupts;
TIMSK4 = _BV(OCIE4A) ; // enable the output compare interrupt
}
#endif
#if defined (_useTimer5)
if(timer == _timer5) {
TCCR5A = 0; // normal counting mode
TCCR5B = _BV(CS51); // set prescaler of 8
TCNT5 = 0; // clear the timer count
TIFR5 = _BV(OCF5A); // clear any pending interrupts;
TIMSK5 = _BV(OCIE5A) ; // enable the output compare interrupt
}
#endif
}
static void finISR(timer16_Sequence_t timer)
{
//disable use of the given timer
#if defined WIRING // Wiring
if(timer == _timer1) {
#if defined(__AVR_ATmega1281__)||defined(__AVR_ATmega2561__)
TIMSK1 &= ~_BV(OCIE1A) ; // disable timer 1 output compare interrupt
#else
TIMSK &= ~_BV(OCIE1A) ; // disable timer 1 output compare interrupt
#endif
timerDetach(TIMER1OUTCOMPAREA_INT);
}
else if(timer == _timer3) {
#if defined(__AVR_ATmega1281__)||defined(__AVR_ATmega2561__)
TIMSK3 &= ~_BV(OCIE3A); // disable the timer3 output compare A interrupt
#else
ETIMSK &= ~_BV(OCIE3A); // disable the timer3 output compare A interrupt
#endif
timerDetach(TIMER3OUTCOMPAREA_INT);
}
#else
//For arduino - in future: call here to a currently undefined function to reset the timer
#endif
}
static boolean isTimerActive(timer16_Sequence_t timer)
{
// returns true if any servo is active on this timer
for(uint8_t channel=0; channel < SERVOS_PER_TIMER; channel++) {
if(SERVO(timer,channel).Pin.isActive == true)
return true;
}
return false;
}
/****************** end of static functions ******************************/
Servo::Servo()
{
if( ServoCount < MAX_SERVOS) {
this->servoIndex = ServoCount++; // assign a servo index to this instance
servos[this->servoIndex].ticks = usToTicks(DEFAULT_PULSE_WIDTH); // store default values - 12 Aug 2009
}
else
this->servoIndex = INVALID_SERVO ; // too many servos
}
uint8_t Servo::attach(int pin)
{
return this->attach(pin, MIN_PULSE_WIDTH, MAX_PULSE_WIDTH);
}
uint8_t Servo::attach(int pin, int min, int max)
{
if(this->servoIndex < MAX_SERVOS ) {
pinMode( pin, OUTPUT) ; // set servo pin to output
servos[this->servoIndex].Pin.nbr = pin;
// todo min/max check: abs(min - MIN_PULSE_WIDTH) /4 < 128
this->min = (MIN_PULSE_WIDTH - min)/4; //resolution of min/max is 4 uS
this->max = (MAX_PULSE_WIDTH - max)/4;
// initialize the timer if it has not already been initialized
timer16_Sequence_t timer = SERVO_INDEX_TO_TIMER(servoIndex);
if(isTimerActive(timer) == false)
initISR(timer);
servos[this->servoIndex].Pin.isActive = true; // this must be set after the check for isTimerActive
}
return this->servoIndex ;
}
void Servo::detach()
{
servos[this->servoIndex].Pin.isActive = false;
timer16_Sequence_t timer = SERVO_INDEX_TO_TIMER(servoIndex);
if(isTimerActive(timer) == false) {
finISR(timer);
}
}
void Servo::write(int value)
{
if(value < MIN_PULSE_WIDTH)
{ // treat values less than 544 as angles in degrees (valid values in microseconds are handled as microseconds)
if(value < 0) value = 0;
if(value > 180) value = 180;
value = map(value, 0, 180, SERVO_MIN(), SERVO_MAX());
}
this->writeMicroseconds(value);
}
void Servo::writeMicroseconds(int value)
{
// calculate and store the values for the given channel
byte channel = this->servoIndex;
if( (channel < MAX_SERVOS) ) // ensure channel is valid
{
if( value < SERVO_MIN() ) // ensure pulse width is valid
value = SERVO_MIN();
else if( value > SERVO_MAX() )
value = SERVO_MAX();
value = value - TRIM_DURATION;
value = usToTicks(value); // convert to ticks after compensating for interrupt overhead - 12 Aug 2009
uint8_t oldSREG = SREG;
cli();
servos[channel].ticks = value;
SREG = oldSREG;
}
}
int Servo::read() // return the value as degrees
{
return map( this->readMicroseconds()+1, SERVO_MIN(), SERVO_MAX(), 0, 180);
}
int Servo::readMicroseconds()
{
unsigned int pulsewidth;
if( this->servoIndex != INVALID_SERVO )
pulsewidth = ticksToUs(servos[this->servoIndex].ticks) + TRIM_DURATION ; // 12 aug 2009
else
pulsewidth = 0;
return pulsewidth;
}
bool Servo::attached()
{
return servos[this->servoIndex].Pin.isActive ;
}
#endif // ARDUINO_ARCH_AVR

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/*
Servo.h - Interrupt driven Servo library for Arduino using 16 bit timers- Version 2
Copyright (c) 2009 Michael Margolis. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* Defines for 16 bit timers used with Servo library
*
* If _useTimerX is defined then TimerX is a 16 bit timer on the current board
* timer16_Sequence_t enumerates the sequence that the timers should be allocated
* _Nbr_16timers indicates how many 16 bit timers are available.
*/
/**
* AVR Only definitions
* --------------------
*/
// Say which 16 bit timers can be used and in what order
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
#define _useTimer5
#define _useTimer1
#define _useTimer3
#define _useTimer4
typedef enum { _timer5, _timer1, _timer3, _timer4, _Nbr_16timers } timer16_Sequence_t;
#elif defined(__AVR_ATmega32U4__)
#define _useTimer1
typedef enum { _timer1, _Nbr_16timers } timer16_Sequence_t;
#elif defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__)
#define _useTimer3
#define _useTimer1
typedef enum { _timer3, _timer1, _Nbr_16timers } timer16_Sequence_t;
#elif defined(__AVR_ATmega128__) || defined(__AVR_ATmega1281__) || defined(__AVR_ATmega1284__) || defined(__AVR_ATmega1284P__) || defined(__AVR_ATmega2561__)
#define _useTimer3
#define _useTimer1
typedef enum { _timer3, _timer1, _Nbr_16timers } timer16_Sequence_t;
#else // everything else
#define _useTimer1
typedef enum { _timer1, _Nbr_16timers } timer16_Sequence_t;
#endif

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/*
Copyright (c) 2013 Arduino LLC. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#if defined(ARDUINO_ARCH_SAM)
#include <Arduino.h>
#include <Servo.h>
#define usToTicks(_us) (( clockCyclesPerMicrosecond() * _us) / 32) // converts microseconds to tick
#define ticksToUs(_ticks) (( (unsigned)_ticks * 32)/ clockCyclesPerMicrosecond() ) // converts from ticks back to microseconds
#define TRIM_DURATION 2 // compensation ticks to trim adjust for digitalWrite delays
static servo_t servos[MAX_SERVOS]; // static array of servo structures
uint8_t ServoCount = 0; // the total number of attached servos
static volatile int8_t Channel[_Nbr_16timers ]; // counter for the servo being pulsed for each timer (or -1 if refresh interval)
// convenience macros
#define SERVO_INDEX_TO_TIMER(_servo_nbr) ((timer16_Sequence_t)(_servo_nbr / SERVOS_PER_TIMER)) // returns the timer controlling this servo
#define SERVO_INDEX_TO_CHANNEL(_servo_nbr) (_servo_nbr % SERVOS_PER_TIMER) // returns the index of the servo on this timer
#define SERVO_INDEX(_timer,_channel) ((_timer*SERVOS_PER_TIMER) + _channel) // macro to access servo index by timer and channel
#define SERVO(_timer,_channel) (servos[SERVO_INDEX(_timer,_channel)]) // macro to access servo class by timer and channel
#define SERVO_MIN() (MIN_PULSE_WIDTH - this->min * 4) // minimum value in uS for this servo
#define SERVO_MAX() (MAX_PULSE_WIDTH - this->max * 4) // maximum value in uS for this servo
/************ static functions common to all instances ***********************/
//------------------------------------------------------------------------------
/// Interrupt handler for the TC0 channel 1.
//------------------------------------------------------------------------------
void Servo_Handler(timer16_Sequence_t timer, Tc *pTc, uint8_t channel);
#if defined (_useTimer1)
void HANDLER_FOR_TIMER1(void) {
Servo_Handler(_timer1, TC_FOR_TIMER1, CHANNEL_FOR_TIMER1);
}
#endif
#if defined (_useTimer2)
void HANDLER_FOR_TIMER2(void) {
Servo_Handler(_timer2, TC_FOR_TIMER2, CHANNEL_FOR_TIMER2);
}
#endif
#if defined (_useTimer3)
void HANDLER_FOR_TIMER3(void) {
Servo_Handler(_timer3, TC_FOR_TIMER3, CHANNEL_FOR_TIMER3);
}
#endif
#if defined (_useTimer4)
void HANDLER_FOR_TIMER4(void) {
Servo_Handler(_timer4, TC_FOR_TIMER4, CHANNEL_FOR_TIMER4);
}
#endif
#if defined (_useTimer5)
void HANDLER_FOR_TIMER5(void) {
Servo_Handler(_timer5, TC_FOR_TIMER5, CHANNEL_FOR_TIMER5);
}
#endif
void Servo_Handler(timer16_Sequence_t timer, Tc *tc, uint8_t channel)
{
// clear interrupt
tc->TC_CHANNEL[channel].TC_SR;
if (Channel[timer] < 0) {
tc->TC_CHANNEL[channel].TC_CCR |= TC_CCR_SWTRG; // channel set to -1 indicated that refresh interval completed so reset the timer
} else {
if (SERVO_INDEX(timer,Channel[timer]) < ServoCount && SERVO(timer,Channel[timer]).Pin.isActive == true) {
digitalWrite(SERVO(timer,Channel[timer]).Pin.nbr, LOW); // pulse this channel low if activated
}
}
Channel[timer]++; // increment to the next channel
if( SERVO_INDEX(timer,Channel[timer]) < ServoCount && Channel[timer] < SERVOS_PER_TIMER) {
tc->TC_CHANNEL[channel].TC_RA = tc->TC_CHANNEL[channel].TC_CV + SERVO(timer,Channel[timer]).ticks;
if(SERVO(timer,Channel[timer]).Pin.isActive == true) { // check if activated
digitalWrite( SERVO(timer,Channel[timer]).Pin.nbr,HIGH); // its an active channel so pulse it high
}
}
else {
// finished all channels so wait for the refresh period to expire before starting over
if( (tc->TC_CHANNEL[channel].TC_CV) + 4 < usToTicks(REFRESH_INTERVAL) ) { // allow a few ticks to ensure the next OCR1A not missed
tc->TC_CHANNEL[channel].TC_RA = (unsigned int)usToTicks(REFRESH_INTERVAL);
}
else {
tc->TC_CHANNEL[channel].TC_RA = tc->TC_CHANNEL[channel].TC_CV + 4; // at least REFRESH_INTERVAL has elapsed
}
Channel[timer] = -1; // this will get incremented at the end of the refresh period to start again at the first channel
}
}
static void _initISR(Tc *tc, uint32_t channel, uint32_t id, IRQn_Type irqn)
{
pmc_enable_periph_clk(id);
TC_Configure(tc, channel,
TC_CMR_TCCLKS_TIMER_CLOCK3 | // MCK/32
TC_CMR_WAVE | // Waveform mode
TC_CMR_WAVSEL_UP_RC ); // Counter running up and reset when equals to RC
/* 84MHz, MCK/32, for 1.5ms: 3937 */
TC_SetRA(tc, channel, 2625); // 1ms
/* Configure and enable interrupt */
NVIC_EnableIRQ(irqn);
// TC_IER_CPAS: RA Compare
tc->TC_CHANNEL[channel].TC_IER = TC_IER_CPAS;
// Enables the timer clock and performs a software reset to start the counting
TC_Start(tc, channel);
}
static void initISR(timer16_Sequence_t timer)
{
#if defined (_useTimer1)
if (timer == _timer1)
_initISR(TC_FOR_TIMER1, CHANNEL_FOR_TIMER1, ID_TC_FOR_TIMER1, IRQn_FOR_TIMER1);
#endif
#if defined (_useTimer2)
if (timer == _timer2)
_initISR(TC_FOR_TIMER2, CHANNEL_FOR_TIMER2, ID_TC_FOR_TIMER2, IRQn_FOR_TIMER2);
#endif
#if defined (_useTimer3)
if (timer == _timer3)
_initISR(TC_FOR_TIMER3, CHANNEL_FOR_TIMER3, ID_TC_FOR_TIMER3, IRQn_FOR_TIMER3);
#endif
#if defined (_useTimer4)
if (timer == _timer4)
_initISR(TC_FOR_TIMER4, CHANNEL_FOR_TIMER4, ID_TC_FOR_TIMER4, IRQn_FOR_TIMER4);
#endif
#if defined (_useTimer5)
if (timer == _timer5)
_initISR(TC_FOR_TIMER5, CHANNEL_FOR_TIMER5, ID_TC_FOR_TIMER5, IRQn_FOR_TIMER5);
#endif
}
static void finISR(timer16_Sequence_t timer)
{
#if defined (_useTimer1)
TC_Stop(TC_FOR_TIMER1, CHANNEL_FOR_TIMER1);
#endif
#if defined (_useTimer2)
TC_Stop(TC_FOR_TIMER2, CHANNEL_FOR_TIMER2);
#endif
#if defined (_useTimer3)
TC_Stop(TC_FOR_TIMER3, CHANNEL_FOR_TIMER3);
#endif
#if defined (_useTimer4)
TC_Stop(TC_FOR_TIMER4, CHANNEL_FOR_TIMER4);
#endif
#if defined (_useTimer5)
TC_Stop(TC_FOR_TIMER5, CHANNEL_FOR_TIMER5);
#endif
}
static boolean isTimerActive(timer16_Sequence_t timer)
{
// returns true if any servo is active on this timer
for(uint8_t channel=0; channel < SERVOS_PER_TIMER; channel++) {
if(SERVO(timer,channel).Pin.isActive == true)
return true;
}
return false;
}
/****************** end of static functions ******************************/
Servo::Servo()
{
if (ServoCount < MAX_SERVOS) {
this->servoIndex = ServoCount++; // assign a servo index to this instance
servos[this->servoIndex].ticks = usToTicks(DEFAULT_PULSE_WIDTH); // store default values
} else {
this->servoIndex = INVALID_SERVO; // too many servos
}
}
uint8_t Servo::attach(int pin)
{
return this->attach(pin, MIN_PULSE_WIDTH, MAX_PULSE_WIDTH);
}
uint8_t Servo::attach(int pin, int min, int max)
{
timer16_Sequence_t timer;
if (this->servoIndex < MAX_SERVOS) {
pinMode(pin, OUTPUT); // set servo pin to output
servos[this->servoIndex].Pin.nbr = pin;
// todo min/max check: abs(min - MIN_PULSE_WIDTH) /4 < 128
this->min = (MIN_PULSE_WIDTH - min)/4; //resolution of min/max is 4 uS
this->max = (MAX_PULSE_WIDTH - max)/4;
// initialize the timer if it has not already been initialized
timer = SERVO_INDEX_TO_TIMER(servoIndex);
if (isTimerActive(timer) == false) {
initISR(timer);
}
servos[this->servoIndex].Pin.isActive = true; // this must be set after the check for isTimerActive
}
return this->servoIndex;
}
void Servo::detach()
{
timer16_Sequence_t timer;
servos[this->servoIndex].Pin.isActive = false;
timer = SERVO_INDEX_TO_TIMER(servoIndex);
if(isTimerActive(timer) == false) {
finISR(timer);
}
}
void Servo::write(int value)
{
// treat values less than 544 as angles in degrees (valid values in microseconds are handled as microseconds)
if (value < MIN_PULSE_WIDTH)
{
if (value < 0)
value = 0;
else if (value > 180)
value = 180;
value = map(value, 0, 180, SERVO_MIN(), SERVO_MAX());
}
writeMicroseconds(value);
}
void Servo::writeMicroseconds(int value)
{
// calculate and store the values for the given channel
byte channel = this->servoIndex;
if( (channel < MAX_SERVOS) ) // ensure channel is valid
{
if (value < SERVO_MIN()) // ensure pulse width is valid
value = SERVO_MIN();
else if (value > SERVO_MAX())
value = SERVO_MAX();
value = value - TRIM_DURATION;
value = usToTicks(value); // convert to ticks after compensating for interrupt overhead
servos[channel].ticks = value;
}
}
int Servo::read() // return the value as degrees
{
return map(readMicroseconds()+1, SERVO_MIN(), SERVO_MAX(), 0, 180);
}
int Servo::readMicroseconds()
{
unsigned int pulsewidth;
if (this->servoIndex != INVALID_SERVO)
pulsewidth = ticksToUs(servos[this->servoIndex].ticks) + TRIM_DURATION;
else
pulsewidth = 0;
return pulsewidth;
}
bool Servo::attached()
{
return servos[this->servoIndex].Pin.isActive;
}
#endif // ARDUINO_ARCH_SAM

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/*
Copyright (c) 2013 Arduino LLC. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* Defines for 16 bit timers used with Servo library
*
* If _useTimerX is defined then TimerX is a 16 bit timer on the current board
* timer16_Sequence_t enumerates the sequence that the timers should be allocated
* _Nbr_16timers indicates how many 16 bit timers are available.
*/
/**
* SAM Only definitions
* --------------------
*/
// For SAM3X:
#define _useTimer1
#define _useTimer2
#define _useTimer3
#define _useTimer4
#define _useTimer5
/*
TC0, chan 0 => TC0_Handler
TC0, chan 1 => TC1_Handler
TC0, chan 2 => TC2_Handler
TC1, chan 0 => TC3_Handler
TC1, chan 1 => TC4_Handler
TC1, chan 2 => TC5_Handler
TC2, chan 0 => TC6_Handler
TC2, chan 1 => TC7_Handler
TC2, chan 2 => TC8_Handler
*/
#if defined (_useTimer1)
#define TC_FOR_TIMER1 TC1
#define CHANNEL_FOR_TIMER1 0
#define ID_TC_FOR_TIMER1 ID_TC3
#define IRQn_FOR_TIMER1 TC3_IRQn
#define HANDLER_FOR_TIMER1 TC3_Handler
#endif
#if defined (_useTimer2)
#define TC_FOR_TIMER2 TC1
#define CHANNEL_FOR_TIMER2 1
#define ID_TC_FOR_TIMER2 ID_TC4
#define IRQn_FOR_TIMER2 TC4_IRQn
#define HANDLER_FOR_TIMER2 TC4_Handler
#endif
#if defined (_useTimer3)
#define TC_FOR_TIMER3 TC1
#define CHANNEL_FOR_TIMER3 2
#define ID_TC_FOR_TIMER3 ID_TC5
#define IRQn_FOR_TIMER3 TC5_IRQn
#define HANDLER_FOR_TIMER3 TC5_Handler
#endif
#if defined (_useTimer4)
#define TC_FOR_TIMER4 TC0
#define CHANNEL_FOR_TIMER4 2
#define ID_TC_FOR_TIMER4 ID_TC2
#define IRQn_FOR_TIMER4 TC2_IRQn
#define HANDLER_FOR_TIMER4 TC2_Handler
#endif
#if defined (_useTimer5)
#define TC_FOR_TIMER5 TC0
#define CHANNEL_FOR_TIMER5 0
#define ID_TC_FOR_TIMER5 ID_TC0
#define IRQn_FOR_TIMER5 TC0_IRQn
#define HANDLER_FOR_TIMER5 TC0_Handler
#endif
typedef enum { _timer1, _timer2, _timer3, _timer4, _timer5, _Nbr_16timers } timer16_Sequence_t ;

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/*
Copyright (c) 2015 Arduino LLC. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#if defined(ARDUINO_ARCH_SAMD)
#include <Arduino.h>
#include <Servo.h>
#define usToTicks(_us) ((clockCyclesPerMicrosecond() * _us) / 16) // converts microseconds to tick
#define ticksToUs(_ticks) (((unsigned) _ticks * 16) / clockCyclesPerMicrosecond()) // converts from ticks back to microseconds
#define TRIM_DURATION 5 // compensation ticks to trim adjust for digitalWrite delays
static servo_t servos[MAX_SERVOS]; // static array of servo structures
uint8_t ServoCount = 0; // the total number of attached servos
static volatile int8_t currentServoIndex[_Nbr_16timers]; // index for the servo being pulsed for each timer (or -1 if refresh interval)
// convenience macros
#define SERVO_INDEX_TO_TIMER(_servo_nbr) ((timer16_Sequence_t)(_servo_nbr / SERVOS_PER_TIMER)) // returns the timer controlling this servo
#define SERVO_INDEX_TO_CHANNEL(_servo_nbr) (_servo_nbr % SERVOS_PER_TIMER) // returns the index of the servo on this timer
#define SERVO_INDEX(_timer,_channel) ((_timer*SERVOS_PER_TIMER) + _channel) // macro to access servo index by timer and channel
#define SERVO(_timer,_channel) (servos[SERVO_INDEX(_timer,_channel)]) // macro to access servo class by timer and channel
#define SERVO_MIN() (MIN_PULSE_WIDTH - this->min * 4) // minimum value in uS for this servo
#define SERVO_MAX() (MAX_PULSE_WIDTH - this->max * 4) // maximum value in uS for this servo
#define WAIT_TC16_REGS_SYNC(x) while(x->COUNT16.STATUS.bit.SYNCBUSY);
/************ static functions common to all instances ***********************/
void Servo_Handler(timer16_Sequence_t timer, Tc *pTc, uint8_t channel, uint8_t intFlag);
#if defined (_useTimer1)
void HANDLER_FOR_TIMER1(void) {
Servo_Handler(_timer1, TC_FOR_TIMER1, CHANNEL_FOR_TIMER1, INTFLAG_BIT_FOR_TIMER_1);
}
#endif
#if defined (_useTimer2)
void HANDLER_FOR_TIMER2(void) {
Servo_Handler(_timer2, TC_FOR_TIMER2, CHANNEL_FOR_TIMER2, INTFLAG_BIT_FOR_TIMER_2);
}
#endif
void Servo_Handler(timer16_Sequence_t timer, Tc *tc, uint8_t channel, uint8_t intFlag)
{
if (currentServoIndex[timer] < 0) {
tc->COUNT16.COUNT.reg = (uint16_t) 0;
WAIT_TC16_REGS_SYNC(tc)
} else {
if (SERVO_INDEX(timer, currentServoIndex[timer]) < ServoCount && SERVO(timer, currentServoIndex[timer]).Pin.isActive == true) {
digitalWrite(SERVO(timer, currentServoIndex[timer]).Pin.nbr, LOW); // pulse this channel low if activated
}
}
// Select the next servo controlled by this timer
currentServoIndex[timer]++;
if (SERVO_INDEX(timer, currentServoIndex[timer]) < ServoCount && currentServoIndex[timer] < SERVOS_PER_TIMER) {
if (SERVO(timer, currentServoIndex[timer]).Pin.isActive == true) { // check if activated
digitalWrite(SERVO(timer, currentServoIndex[timer]).Pin.nbr, HIGH); // it's an active channel so pulse it high
}
// Get the counter value
uint16_t tcCounterValue = tc->COUNT16.COUNT.reg;
WAIT_TC16_REGS_SYNC(tc)
tc->COUNT16.CC[channel].reg = (uint16_t) (tcCounterValue + SERVO(timer, currentServoIndex[timer]).ticks);
WAIT_TC16_REGS_SYNC(tc)
}
else {
// finished all channels so wait for the refresh period to expire before starting over
// Get the counter value
uint16_t tcCounterValue = tc->COUNT16.COUNT.reg;
WAIT_TC16_REGS_SYNC(tc)
if (tcCounterValue + 4UL < usToTicks(REFRESH_INTERVAL)) { // allow a few ticks to ensure the next OCR1A not missed
tc->COUNT16.CC[channel].reg = (uint16_t) usToTicks(REFRESH_INTERVAL);
}
else {
tc->COUNT16.CC[channel].reg = (uint16_t) (tcCounterValue + 4UL); // at least REFRESH_INTERVAL has elapsed
}
WAIT_TC16_REGS_SYNC(tc)
currentServoIndex[timer] = -1; // this will get incremented at the end of the refresh period to start again at the first channel
}
// Clear the interrupt
tc->COUNT16.INTFLAG.reg = intFlag;
}
static inline void resetTC (Tc* TCx)
{
// Disable TCx
TCx->COUNT16.CTRLA.reg &= ~TC_CTRLA_ENABLE;
WAIT_TC16_REGS_SYNC(TCx)
// Reset TCx
TCx->COUNT16.CTRLA.reg = TC_CTRLA_SWRST;
WAIT_TC16_REGS_SYNC(TCx)
while (TCx->COUNT16.CTRLA.bit.SWRST);
}
static void _initISR(Tc *tc, uint8_t channel, uint32_t id, IRQn_Type irqn, uint8_t gcmForTimer, uint8_t intEnableBit)
{
// Enable GCLK for timer 1 (timer counter input clock)
GCLK->CLKCTRL.reg = (uint16_t) (GCLK_CLKCTRL_CLKEN | GCLK_CLKCTRL_GEN_GCLK0 | GCLK_CLKCTRL_ID(gcmForTimer));
while (GCLK->STATUS.bit.SYNCBUSY);
// Reset the timer
// TODO this is not the right thing to do if more than one channel per timer is used by the Servo library
resetTC(tc);
// Set timer counter mode to 16 bits
tc->COUNT16.CTRLA.reg |= TC_CTRLA_MODE_COUNT16;
// Set timer counter mode as normal PWM
tc->COUNT16.CTRLA.reg |= TC_CTRLA_WAVEGEN_NPWM;
// Set the prescaler factor to GCLK_TC/16. At nominal 48MHz GCLK_TC this is 3000 ticks per millisecond
tc->COUNT16.CTRLA.reg |= TC_CTRLA_PRESCALER_DIV16;
// Count up
tc->COUNT16.CTRLBCLR.bit.DIR = 1;
WAIT_TC16_REGS_SYNC(tc)
// First interrupt request after 1 ms
tc->COUNT16.CC[channel].reg = (uint16_t) usToTicks(1000UL);
WAIT_TC16_REGS_SYNC(tc)
// Configure interrupt request
// TODO this should be changed if more than one channel per timer is used by the Servo library
NVIC_DisableIRQ(irqn);
NVIC_ClearPendingIRQ(irqn);
NVIC_SetPriority(irqn, 0);
NVIC_EnableIRQ(irqn);
// Enable the match channel interrupt request
tc->COUNT16.INTENSET.reg = intEnableBit;
// Enable the timer and start it
tc->COUNT16.CTRLA.reg |= TC_CTRLA_ENABLE;
WAIT_TC16_REGS_SYNC(tc)
}
static void initISR(timer16_Sequence_t timer)
{
#if defined (_useTimer1)
if (timer == _timer1)
_initISR(TC_FOR_TIMER1, CHANNEL_FOR_TIMER1, ID_TC_FOR_TIMER1, IRQn_FOR_TIMER1, GCM_FOR_TIMER_1, INTENSET_BIT_FOR_TIMER_1);
#endif
#if defined (_useTimer2)
if (timer == _timer2)
_initISR(TC_FOR_TIMER2, CHANNEL_FOR_TIMER2, ID_TC_FOR_TIMER2, IRQn_FOR_TIMER2, GCM_FOR_TIMER_2, INTENSET_BIT_FOR_TIMER_2);
#endif
}
static void finISR(timer16_Sequence_t timer)
{
#if defined (_useTimer1)
// Disable the match channel interrupt request
TC_FOR_TIMER1->COUNT16.INTENCLR.reg = INTENCLR_BIT_FOR_TIMER_1;
#endif
#if defined (_useTimer2)
// Disable the match channel interrupt request
TC_FOR_TIMER2->COUNT16.INTENCLR.reg = INTENCLR_BIT_FOR_TIMER_2;
#endif
}
static boolean isTimerActive(timer16_Sequence_t timer)
{
// returns true if any servo is active on this timer
for(uint8_t channel=0; channel < SERVOS_PER_TIMER; channel++) {
if(SERVO(timer,channel).Pin.isActive == true)
return true;
}
return false;
}
/****************** end of static functions ******************************/
Servo::Servo()
{
if (ServoCount < MAX_SERVOS) {
this->servoIndex = ServoCount++; // assign a servo index to this instance
servos[this->servoIndex].ticks = usToTicks(DEFAULT_PULSE_WIDTH); // store default values
} else {
this->servoIndex = INVALID_SERVO; // too many servos
}
}
uint8_t Servo::attach(int pin)
{
return this->attach(pin, MIN_PULSE_WIDTH, MAX_PULSE_WIDTH);
}
uint8_t Servo::attach(int pin, int min, int max)
{
timer16_Sequence_t timer;
if (this->servoIndex < MAX_SERVOS) {
pinMode(pin, OUTPUT); // set servo pin to output
servos[this->servoIndex].Pin.nbr = pin;
// todo min/max check: abs(min - MIN_PULSE_WIDTH) /4 < 128
this->min = (MIN_PULSE_WIDTH - min)/4; //resolution of min/max is 4 uS
this->max = (MAX_PULSE_WIDTH - max)/4;
// initialize the timer if it has not already been initialized
timer = SERVO_INDEX_TO_TIMER(servoIndex);
if (isTimerActive(timer) == false) {
initISR(timer);
}
servos[this->servoIndex].Pin.isActive = true; // this must be set after the check for isTimerActive
}
return this->servoIndex;
}
void Servo::detach()
{
timer16_Sequence_t timer;
servos[this->servoIndex].Pin.isActive = false;
timer = SERVO_INDEX_TO_TIMER(servoIndex);
if(isTimerActive(timer) == false) {
finISR(timer);
}
}
void Servo::write(int value)
{
// treat values less than 544 as angles in degrees (valid values in microseconds are handled as microseconds)
if (value < MIN_PULSE_WIDTH)
{
if (value < 0)
value = 0;
else if (value > 180)
value = 180;
value = map(value, 0, 180, SERVO_MIN(), SERVO_MAX());
}
writeMicroseconds(value);
}
void Servo::writeMicroseconds(int value)
{
// calculate and store the values for the given channel
byte channel = this->servoIndex;
if( (channel < MAX_SERVOS) ) // ensure channel is valid
{
if (value < SERVO_MIN()) // ensure pulse width is valid
value = SERVO_MIN();
else if (value > SERVO_MAX())
value = SERVO_MAX();
value = value - TRIM_DURATION;
value = usToTicks(value); // convert to ticks after compensating for interrupt overhead
servos[channel].ticks = value;
}
}
int Servo::read() // return the value as degrees
{
return map(readMicroseconds()+1, SERVO_MIN(), SERVO_MAX(), 0, 180);
}
int Servo::readMicroseconds()
{
unsigned int pulsewidth;
if (this->servoIndex != INVALID_SERVO)
pulsewidth = ticksToUs(servos[this->servoIndex].ticks) + TRIM_DURATION;
else
pulsewidth = 0;
return pulsewidth;
}
bool Servo::attached()
{
return servos[this->servoIndex].Pin.isActive;
}
#endif // ARDUINO_ARCH_SAMD

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/*
Copyright (c) 2015 Arduino LLC. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* Defines for 16 bit timers used with Servo library
*
* If _useTimerX is defined then TimerX is a 16 bit timer on the current board
* timer16_Sequence_t enumerates the sequence that the timers should be allocated
* _Nbr_16timers indicates how many 16 bit timers are available.
*/
#ifndef __SERVO_TIMERS_H__
#define __SERVO_TIMERS_H__
/**
* SAMD Only definitions
* ---------------------
*/
// For SAMD:
#define _useTimer1
//#define _useTimer2 // <- TODO do not activate until the code in Servo.cpp has been changed in order
// to manage more than one channel per timer on the SAMD architecture
#if defined (_useTimer1)
#define TC_FOR_TIMER1 TC4
#define CHANNEL_FOR_TIMER1 0
#define INTENSET_BIT_FOR_TIMER_1 TC_INTENSET_MC0
#define INTENCLR_BIT_FOR_TIMER_1 TC_INTENCLR_MC0
#define INTFLAG_BIT_FOR_TIMER_1 TC_INTFLAG_MC0
#define ID_TC_FOR_TIMER1 ID_TC4
#define IRQn_FOR_TIMER1 TC4_IRQn
#define HANDLER_FOR_TIMER1 TC4_Handler
#define GCM_FOR_TIMER_1 GCM_TC4_TC5
#endif
#if defined (_useTimer2)
#define TC_FOR_TIMER2 TC4
#define CHANNEL_FOR_TIMER2 1
#define INTENSET_BIT_FOR_TIMER_2 TC_INTENSET_MC1
#define INTENCLR_BIT_FOR_TIMER_2 TC_INTENCLR_MC1
#define ID_TC_FOR_TIMER2 ID_TC4
#define IRQn_FOR_TIMER2 TC4_IRQn
#define HANDLER_FOR_TIMER2 TC4_Handler
#define GCM_FOR_TIMER_2 GCM_TC4_TC5
#endif
typedef enum {
#if defined (_useTimer1)
_timer1,
#endif
#if defined (_useTimer2)
_timer2,
#endif
_Nbr_16timers } timer16_Sequence_t;
#endif // __SERVO_TIMERS_H__

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//www.elegoo.com
//2016.12.08
#include </Users/Imogen/Documents/Arduino/libraries/Servo/Servo.h>
#include </Users/Imogen/Documents/Arduino/libraries/Servo/Servo.cpp>
Servo myservo; // create servo object to control a servo
// twelve servo objects can be created on most boards
int pos = 0; // variable to store the servo position
void setup() {
myservo.attach(9); // attaches the servo on pin 9 to the servo object
}
void loop() {
for (pos = 0; pos <= 90; pos += 1) { // goes from 0 degrees to 180 degrees
// in steps of 1 degree
myservo.write(pos); // tell servo to go to position in variable 'pos'
delay(50); // waits 15ms for the servo to reach the position
}
delay(1000);
for (pos = 90; pos >= 0; pos -= 1) { // goes from 180 degrees to 0 degrees
myservo.write(pos); // tell servo to go to position in variable 'pos'
delay(50); // waits 15ms for the servo to reach the position
}
}

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Dear Customer,
Thanks a lot for your support and purchasing Elegoo products.
We keep updating our tutorialso the tutorial in the CD may not be the latest version.
If you need the latest tutorial, you may download the tutorial from www.elegoo.com
We apologize for the inconvenience caused and should you have additional questions or problems during testing,
please feel free to contact us at service@elegoo.com or euservice@elegoo.com.
Thanks and best regards
Elegoo Support Team

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// --------------------------------------
// i2c_scanner
//
// Version 1
// This program (or code that looks like it)
// can be found in many places.
// For example on the Arduino.cc forum.
// The original author is not know.
// Version 2, Juni 2012, Using Arduino 1.0.1
// Adapted to be as simple as possible by Arduino.cc user Krodal
// Version 3, Feb 26 2013
// V3 by louarnold
// Version 4, March 3, 2013, Using Arduino 1.0.3
// by Arduino.cc user Krodal.
// Changes by louarnold removed.
// Scanning addresses changed from 0...127 to 1...119,
// according to the i2c scanner by Nick Gammon
// http://www.gammon.com.au/forum/?id=10896
// Version 5, March 28, 2013
// As version 4, but address scans now to 127.
// A sensor seems to use address 120.
// Version 6, November 27, 2015.
// Added waiting for the Leonardo serial communication.
//
//
// This sketch tests the standard 7-bit addresses
// Devices with higher bit address might not be seen properly.
//
#include <Wire.h>
void setup()
{
Wire.begin();
Serial.begin(9600);
while (!Serial); // Leonardo: wait for serial monitor
Serial.println("\nI2C Scanner");
}
void loop()
{
byte error, address;
int nDevices;
Serial.println("Scanning...");
nDevices = 0;
for(address = 1; address < 127; address++ )
{
// The i2c_scanner uses the return value of
// the Write.endTransmisstion to see if
// a device did acknowledge to the address.
Wire.beginTransmission(address);
error = Wire.endTransmission();
if (error == 0)
{
Serial.print("I2C device found at address 0x");
if (address<16)
Serial.print("0");
Serial.print(address,HEX);
Serial.println(" !");
nDevices++;
}
else if (error==4)
{
Serial.print("Unknown error at address 0x");
if (address<16)
Serial.print("0");
Serial.println(address,HEX);
}
}
if (nDevices == 0)
Serial.println("No I2C devices found\n");
else
Serial.println("done\n");
delay(5000); // wait 5 seconds for next scan
}

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int rPin = 11;
int gPin = 10;
int bPin = 9;
int tstPin = 3;
void setup() {
// put your setup code here, to run once:
pinMode(rPin, OUTPUT); // R
pinMode(gPin, OUTPUT); // G
pinMode(bPin, OUTPUT); // B
pinMode(5, OUTPUT); // transistor
pinMode(4, OUTPUT); // transistor
pinMode(tstPin, OUTPUT); // test
}
void loop() {
// put your main code here, to run repeatedly:
if(rand()%2){
digitalWrite(tstPin,HIGH);
}
else{
digitalWrite(tstPin,LOW);
}
digitalWrite(rPin,0.6*15);
digitalWrite(gPin,0.3*15*0);
digitalWrite(bPin,0.1*15*0);
if(rand()%2){
digitalWrite(4,HIGH);
}
else{
digitalWrite(4,LOW);
}
if(rand()%2){
digitalWrite(5,HIGH);
}
else{
digitalWrite(5,LOW);
}
// digitalWrite(5,LOW);
delay(1000);
}

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Code style
----------
1. Please use ``fixed integers``, see `stdint.h`_. Why? This library is compatible to different boards which use different architectures (16bit vs 32bit). So unfixed ``int`` has different sizes on different environments and may cause unpredictable behaviour.
2. If possible: use advantages of `c++11`, e.g. `constexpr`.
3. Use tab in source files. Space in examples.
4. Add documentation to **every** new function or parameter. Add documentation to most steps in your source code.

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<!-- BEGIN - This is a comment just for you visible
### Step 0: Are you in the right place?
GitHub issues only for **bugs** or **improvements** of the library. All other topics, e.g. hardware/programming, will be closed.
For general support from the community, see [Arduino Forum](https://forum.arduino.cc/) or [StackOverflow](https://stackoverflow.com/questions/tagged/mifare).
Please use the following template to give us as mutch information as you can.
END - This is a comment just for you visible -->
### Step 1: Describe your environment
* OS version: _____
* Arduino IDE version: _____
* MFRC522 Library version: _____ <!-- comment: important! v1.x.x or master-branch? -->
* Arduino device: _____
* MFRC522 device: _____
### Step 2: Describe the problem
#### Affected file(s) or example(s):
* Filename 1
* Filename 2
#### Steps to reproduce:
1. _____
2. _____
3. _____
#### Observed Results:
* What happened? This could be a description, log output, screenshot, etc.
#### Expected Results:
* What did you expect to happen?
#### Relevant Code:
```arduino
// TODO(you): code here to reproduce the problem
```

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<!-- BEGIN - This is a comment just for you visible
Please use the following template to give us as mutch information as you can.
Not used rows can be deleted.
END - This is a comment just for you visible -->
| Q | A
| ------------- | ---
| Bug fix? | yes/no
| New feature? | yes/no
| Doc update? | yes/no
| BC breaks? | yes/no <!-- BC = backwards compatibility -->
| Deprecations? | yes/no
| Fixed tickets | #... <!-- #-prefixed issue number(s), if any -->

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MFRC522.zip
# ignore IDE files
.idea
cmake
CMakeLists.txt

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language: python
python:
- "2.7"
# Cache PlatformIO packages using Travis CI container-based infrastructure
sudo: false
cache:
directories:
- "~/.platformio"
env:
# add examples here and define which boards should be tested (only compile test)
- PLATFORMIO_CI_SRC=examples/ChangeUID/ChangeUID.ino TESTBOARD=arduino_avr,arduino_arm,teensy,esp
- PLATFORMIO_CI_SRC=examples/DumpInfo/DumpInfo.ino TESTBOARD=arduino_avr,arduino_arm,teensy,esp
- PLATFORMIO_CI_SRC=examples/firmware_check/firmware_check.ino TESTBOARD=arduino_avr,arduino_arm,teensy,esp
- PLATFORMIO_CI_SRC=examples/FixBrickedUID/FixBrickedUID.ino TESTBOARD=arduino_avr,arduino_arm,teensy,esp
- PLATFORMIO_CI_SRC=examples/MifareClassicValueBlock/MifareClassicValueBlock.ino TESTBOARD=arduino_avr,arduino_arm,teensy,esp
- PLATFORMIO_CI_SRC=examples/MinimalInterrupt/MinimalInterrupt.ino TESTBOARD=arduino_avr,arduino_arm,teensy,esp
- PLATFORMIO_CI_SRC=examples/ReadAndWrite/ReadAndWrite.ino TESTBOARD=arduino_avr,arduino_arm,teensy,esp
- PLATFORMIO_CI_SRC=examples/ReadUidMultiReader/ReadUidMultiReader.ino TESTBOARD=arduino_avr,arduino_arm,teensy,esp
- PLATFORMIO_CI_SRC=examples/rfid_default_keys/rfid_default_keys.ino TESTBOARD=arduino_avr,arduino_arm,teensy,esp
- PLATFORMIO_CI_SRC=examples/rfid_write_personal_data/rfid_write_personal_data.ino TESTBOARD=arduino_avr,arduino_arm,teensy,esp
- PLATFORMIO_CI_SRC=examples/Ntag216_AUTH/Ntag216_AUTH.ino TESTBOARD=arduino_avr,arduino_arm,teensy,esp
- PLATFORMIO_CI_SRC=examples/ReadNUID/ReadNUID.ino TESTBOARD=arduino_avr,arduino_arm,teensy,esp
- PLATFORMIO_CI_SRC=examples/AccessControl/AccessControl.ino TESTBOARD=arduino_avr,teensy
- PLATFORMIO_CI_SRC=examples/RFID-Cloner/RFID-Cloner.ino TESTBOARD=arduino_avr,arduino_arm,teensy,esp
- PLATFORMIO_CI_SRC=examples/rfid_read_personal_data/rfid_read_personal_data.ino TESTBOARD=arduino_avr,arduino_arm,teensy,esp
install:
- pip install -U platformio
script:
# short the string comparison
- stringContain() { [ -z "${2##*$1*}" ]; }
# selectable board tests @Rotzbua
# prints only warnings and errors, to show all remove "1>/dev/null"
- board="arduino_avr"; if stringContain "$board" "$TESTBOARD"; then echo "check board $board"; ouput=$(platformio ci --lib=. --board=uno --board=megaatmega1280); echo "--<Result>--"; echo "$ouput" | grep -E "^(Device|Data|Program|text|[0-9])"; else echo "skip board test of $board"; fi
- board="arduino_arm"; if stringContain "$board" "$TESTBOARD"; then echo "check board $board"; ouput=$(platformio ci --lib=. --board=due --board=zero); echo "--<Result>--"; echo "$ouput" | grep -E "^(Device|Data|Program|text|[0-9])"; else echo "skip board test of $board"; fi
- board="teensy"; if stringContain "$board" "$TESTBOARD"; then echo "check board $board"; ouput=$(platformio ci --lib=. --board=teensy20 --board=teensy31); echo "--<Result>--"; echo "$ouput" | grep -E "^(Device|Data|Program|text|[0-9])"; else echo "skip board test of $board"; fi
- board="esp"; if stringContain "$board" "$TESTBOARD"; then echo "check board $board"; ouput=$(platformio ci --lib=. --board=d1_mini); echo "--<Result>--"; echo "$ouput" | grep -E "^(Device|Data|Program|text|[0-9])"; else echo "skip board test of $board"; fi

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MFRC522
=======
.. image:: https://travis-ci.org/miguelbalboa/rfid.svg?branch=master
:target: https://travis-ci.org/miguelbalboa/rfid
.. image:: https://img.shields.io/badge/C%2B%2B-11-brightgreen.svg
:target: `compatible ide`_
.. image:: https://img.shields.io/github/release/miguelbalboa/rfid.svg?colorB=green
:target: https://github.com/miguelbalboa/rfid/releases
.. image:: https://img.shields.io/badge/ArduinoIDE-%3E%3D1.6.10-lightgrey.svg
:target: `compatible ide`_
Arduino library for MFRC522 and other RFID RC522 based modules.
Read and write different types of Radio-Frequency IDentification (RFID) cards
on your Arduino using a RC522 based reader connected via the Serial Peripheral
Interface (SPI) interface.
.. _development:
Development
----------
**The development by owner miguelbalboa has ended**. Further development will be done by community. This library is still maintained by miguelbalboa, so make pull request if you like some new features or fixes. Support/issues should be solved by community.
.. _what works and not:
What works and not?
----------
* **Works**
#. Communication (Crypto1) with MIFARE Classic (1k, 4k, Mini).
#. Communication (Crypto1) with MIFARE Classic compatible PICCs.
#. Firmware self check of MFRC522.
#. Set the UID, write to sector 0, and unbrick Chinese UID changeable MIFARE cards.
* **Works partially**
#. Communication with MIFARE Ultralight.
#. Other PICCs (Ntag216).
#. More than 2 modules, require a multiplexer `#191 <https://github.com/miguelbalboa/rfid/issues/191#issuecomment-242631153>`_.
* **Doesn't work**
#. MIFARE DESFire, MIFARE DESFire EV1/EV2, not supported by software.
#. Communication with 3DES or AES, not supported by software.
#. Peer-to-peer (ISO/IEC 18092), not `supported by hardware`_.
#. Communication with smart phone, not `supported by hardware`_.
#. Card emulation, not `supported by hardware`_.
#. Use of IRQ pin. But there is a proof-of-concept example.
#. With Arduino Yun see `#111 <https://github.com/miguelbalboa/rfid/issues/111>`_, not supported by software.
#. With Intel Galileo (Gen2) see `#310 <https://github.com/miguelbalboa/rfid/issues/310>`__, not supported by software.
#. Power reduction modes `#269 <https://github.com/miguelbalboa/rfid/issues/269>`_, not supported by software.
#. I2C instead of SPI `#240 <https://github.com/miguelbalboa/rfid/issues/240>`_, not supported by software.
#. UART instead of SPI `#281 <https://github.com/miguelbalboa/rfid/issues/281>`_, not supported by software.
* **Need more?**
#. If software: code it and make a pull request.
#. If hardware: buy a more expensive like PN532 (supports NFC and many more, but costs about $15).
.. _compatible ide:
Compatible IDE
----------
This library works with Arduino IDE 1.6, older versions are **not supported** and will cause compiler errors. The built-in library manager is supported.
If you use your own compiler, you have to enable ``c++11``-support.
.. _compatible boards:
Compatible boards
----------
**!!!Only for advanced users!!!**
This library is compatible with the Teensy and ESP8266 if you use the board plugin of the Arduino IDE. Not all examples are available for every board. You also have to change pins. See `pin layout`_.
Some user made some patches/suggestions/ports for other boards:
* Linux: https://github.com/miguelbalboa/rfid/pull/216
* chipKIT: https://github.com/miguelbalboa/rfid/pull/230
* ESP8266 (native): https://github.com/miguelbalboa/rfid/pull/235
* ESP8266 nonos sdk: https://github.com/mmmmar/esp8266-mfrc522
* LPCOPen (in C): https://github.com/miguelbalboa/rfid/pull/258
Note that the main target/support of library is still Arduino.
.. _support issue:
Support/issue
----------
1. First checkout `what works and not`_ and `troubleshooting`_ .
2. It seems to be a hardware issue or you need support to program your project?
Please ask in the official `Arduino forum`_, where you would get a much faster answer than on github.
3. It seems to be a software issue?
Open an issue on github.
.. _code style:
Code style
----------
Please use ``fixed integers``, see `stdint.h`_. Why? This library is compatible with different boards which use different architectures (16bit and 32bit.) Unfixed ``int`` variables have different sizes in different environments and may cause unpredictable behaviour.
.. _pin layout:
Pin Layout
----------
The following table shows the typical pin layout used:
+-----------+----------+---------------------------------------------------------------+--------------------------+
| | PCD | Arduino | Teensy |
| +----------+-------------+---------+---------+-----------------+-----------+--------+--------+--------+
| | MFRC522 | Uno / 101 | Mega | Nano v3 |Leonardo / Micro | Pro Micro | 2.0 | ++ 2.0 | 3.1 |
+-----------+----------+-------------+---------+---------+-----------------+-----------+--------+--------+--------+
| Signal | Pin | Pin | Pin | Pin | Pin | Pin | Pin | Pin | Pin |
+===========+==========+=============+=========+=========+=================+===========+========+========+========+
| RST/Reset | RST | 9 [1]_ | 5 [1]_ | D9 | RESET / ICSP-5 | RST | 7 | 4 | 9 |
+-----------+----------+-------------+---------+---------+-----------------+-----------+--------+--------+--------+
| SPI SS | SDA [3]_ | 10 [2]_ | 53 [2]_ | D10 | 10 | 10 | 0 | 20 | 10 |
+-----------+----------+-------------+---------+---------+-----------------+-----------+--------+--------+--------+
| SPI MOSI | MOSI | 11 / ICSP-4 | 51 | D11 | ICSP-4 | 16 | 2 | 22 | 11 |
+-----------+----------+-------------+---------+---------+-----------------+-----------+--------+--------+--------+
| SPI MISO | MISO | 12 / ICSP-1 | 50 | D12 | ICSP-1 | 14 | 3 | 23 | 12 |
+-----------+----------+-------------+---------+---------+-----------------+-----------+--------+--------+--------+
| SPI SCK | SCK | 13 / ICSP-3 | 52 | D13 | ICSP-3 | 15 | 1 | 21 | 13 |
+-----------+----------+-------------+---------+---------+-----------------+-----------+--------+--------+--------+
+-----------+---------------+
| | ESP8266 |
| +---------------+
| | Wemos D1 mini |
+-----------+---------------+
| Signal | Pin |
+===========+===============+
| RST/Reset | D3 |
+-----------+---------------+
| SPI SS | D8 |
+-----------+---------------+
| SPI MOSI | D7 |
+-----------+---------------+
| SPI MISO | D6 |
+-----------+---------------+
| SPI SCK | D5 |
+-----------+---------------+
.. [1] Configurable, typically defined as RST_PIN in sketch/program.
.. [2] Configurable, typically defined as SS_PIN in sketch/program.
.. [3] The SDA pin might be labeled SS on some/older MFRC522 boards.
.. _hardware:
Hardware
--------
There are three hardware components involved:
1. **Micro Controller**:
* An `Arduino`_ or compatible executing the Sketch using this library.
* Prices vary from USD 7 for clones, to USD 75 for "starter kits" (which
might be a good choice if this is your first exposure to Arduino;
check if such kit already includes the Arduino, Reader, and some Tags).
2. **Proximity Coupling Device (PCD)**:
* The PCD is the actual RFID **Reader** based on the `NXP MFRC522`_ Contactless
Reader Integrated Circuit.
* Readers can be found on `eBay`_ for around USD 5: search for *"rc522"*.
* You can also find them on several web stores. They are often included in
*"starter kits"*, so check your favourite electronics provider as well.
3. **Proximity Integrated Circuit Card (PICC)**:
* The PICC is the RFID **Card** or **Tag** using the `ISO/IEC 14443A`_
interface, for example Mifare or NTAG203.
* One or two might be included with the Reader or *"starter kit"* already.
.. _protocol:
Protocols
---------
1. The micro controller and the reader use SPI for communication.
* The protocol is described in the `NXP MFRC522`_ datasheet.
* See the `Pin Layout`_ section for details on connecting the pins.
2. The reader and the tags communicate using a 13.56 MHz electromagnetic field.
* The protocol is defined in ISO/IEC 14443-3:2011 Part 3 Type A.
* Details are found in chapter 6 *"Type A – Initialization and anticollision"*.
* See http://wg8.de/wg8n1496_17n3613_Ballot_FCD14443-3.pdf for a free version
of the final draft (which might be outdated in some areas).
* The reader does not support ISO/IEC 14443-3 Type B.
.. _security:
Security
-------
This library only supports crypto1-encrypted communication. Crypto1 has been known as `broken`_ for a few years, so it does NOT offer ANY security, it is virtually unencrypted communication. **Do not use it for any security related applications!**
This library does not offer 3DES or AES authentication used by cards like the Mifare DESFire, it may be possible to be implemented because the datasheet says there is support. We hope for pull requests :).
.. _troubleshooting:
Troubleshooting
-------
* **I don't get input from reader** or **WARNING: Communication failure, is the MFRC522 properly connected?**
#. Check your connection, see `Pin Layout`_ .
#. Check voltage. Most breakouts work with 3.3V.
#. SPI only works with 3.3V, most breakouts seem 5V tollerant, but try a level shifter.
#. SPI does not like long connections. Try shorter connections.
#. SPI does not like prototyping boards. Try soldered connections.
#. According to reports #101, #126 and #131, there may be a problem with the soldering on the MFRC522 breakout. You could fix this on your own.
* **Sometimes I get timeouts** or **sometimes tag/card does not work.**
#. Try the other side of the antenna.
#. Try to decrease the distance between the MFRC522 and your tag.
#. Increase the antenna gain per firmware: ``mfrc522.PCD_SetAntennaGain(mfrc522.RxGain_max);``
#. Use better power supply.
#. Hardware may be corrupted, most products are from china and sometimes the quality is really poor. Contact your seller.
* **My tag/card doesn't work.**
#. Distance between antenna and token too large (>1cm).
#. You got the wrong type PICC. Is it really 13.56 MHz? Is it really a Mifare Type A?
#. NFC tokens are not supported. Some may work.
#. Animal RFID tags are not supported. They use a different frequency (125 kHz).
#. Hardware may be corrupted, most products are from china and sometimes the quality is really poor. Contact your seller.
#. Newer versions of Mifare cards like DESFire/Ultralight maybe not work according to missing authentification, see `security`_ or different `protocol`_.
#. Some boards bought from chinese manufactures do not use the best components and this can affect the detection of different types of tag/card. In some of these boards, the L1 and L2 inductors do not have a high enough current so the signal generated is not enough to get Ultralight C and NTAG203 tags to work, replacing those with same inductance (2.2uH) but higher operating current inductors should make things work smoothly. Also, in some of those boards the harmonic and matching circuit needs to be tuned, for this replace C4 and C5 with 33pf capacitors and you are all set. (Source: `Mikro Elektronika`_)
* **My mobile phone doesn't recognize the MFRC522** or **my MFRC522 can't read data from other MFRC522**
#. Card simmulation is not supported.
#. Communication with mobile phones is not supported.
#. Peer to peer communication is not supported.
* **I need more features.**
#. If software: code it and make a pull request.
#. If hardware: buy a more expensive chip like the PN532 (supports NFC and many more, but costs about $15)
.. _license:
License
-------
This is free and unencumbered software released into the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, or
distribute this software, either in source code form or as a compiled
binary, for any purpose, commercial or non-commercial, and by any
means.
In jurisdictions that recognize copyright laws, the author or authors
of this software dedicate any and all copyright interest in the
software to the public domain. We make this dedication for the benefit
of the public at large and to the detriment of our heirs and
successors. We intend this dedication to be an overt act of
relinquishment in perpetuity of all present and future rights to this
software under copyright law.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
For more information, please refer to https://unlicense.org/
History
-------
The MFRC522 library was first created in Jan 2012 by Miguel Balboa (from
http://circuitito.com) based on code by Dr. Leong (from http://B2CQSHOP.com)
for *"Arduino RFID module Kit 13.56 Mhz with Tags SPI W and R By COOQRobot"*.
It was translated into English and rewritten/refactored in the fall of 2013
by Søren Thing Andersen (from http://access.thing.dk).
It has been extended with functionality to alter sector 0 on Chinese UID changeable MIFARE card in Oct 2014 by Tom Clement (from http://tomclement.nl).
.. _arduino: https://arduino.cc/
.. _ebay: https://www.ebay.com/
.. _iso/iec 14443a: https://en.wikipedia.org/wiki/ISO/IEC_14443
.. _iso/iec 14443-3\:2011 part 3:
.. _nxp mfrc522: https://www.nxp.com/documents/data_sheet/MFRC522.pdf
.. _broken: https://eprint.iacr.org/2008/166
.. _supported by hardware: https://web.archive.org/web/20151210045625/http://www.nxp.com/documents/leaflet/939775017564.pdf
.. _Arduino forum: https://forum.arduino.cc
.. _stdint.h: https://en.wikibooks.org/wiki/C_Programming/C_Reference/stdint.h
.. _Mikro Elektronika: https://forum.mikroe.com/viewtopic.php?f=147&t=64203

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This is free and unencumbered software released into the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, or
distribute this software, either in source code form or as a compiled
binary, for any purpose, commercial or non-commercial, and by any
means.
In jurisdictions that recognize copyright laws, the author or authors
of this software dedicate any and all copyright interest in the
software to the public domain. We make this dedication for the benefit
of the public at large and to the detriment of our heirs and
successors. We intend this dedication to be an overt act of
relinquishment in perpetuity of all present and future rights to this
software under copyright law.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
For more information, please refer to <http://unlicense.org/>

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-- Add changes to unreleased tag until we make a release.
unreleased
-
unreleased, v1.4.0
- Removed: void PCD_Init(byte resetPowerDownPin);
- Removed: MFRC522(byte resetPowerDownPin);
- Changed default initialisation of SS pin with constants of arduino.h are not done anymore
- Replaced UINT8_MAX by UNUSED_PIN
- Replaced default value NULL for pointer with correct nullptr
- Added pin layout for wemos d1 mini @mmone
- Added alternative fritzing layout for mfrc522 reader @jose1711
- Added soft power control functions @Bill2462
- Fixed typo in example ReadAndWrite.ino @Drachenfrucht1
- Fixed grammar @KiddieD
- Fixed infinite loop in example AccessControl.ino @mads256c
22 Mar 2017, v1.3.6
- Added deprecate and compiler warnings @Rotzbua
8 Apr 2017, v1.3.5
- Updated "AccessControl.ino", bugs fixed and alterate Wipe button polling method without using other library @beyondszine reviewed by @omersiar
- Updated README notice about port for esp8266 @mmmmar
7 Apr 2017, v1.3.4
- Added new example "rfid_read_personal_data.ino" @ryand1011
- Updated example "rfid_write_personal_data.ino" code style to Arduino IDE @Rotzbua
- Removed (temp.) Teensy from travis build script because fails @Rotzbua
26 Mar 2017, v1.3.3
- Fixed bugs in MFRC522Extended, now should work with Desfire.h from JPG-Consulting @Rotzbua
- Fixed UINT8_MAX error @Rotzbua
15 Mar 2017, v1.3.2
- Added ESP8266 to library.properties
15 Mar 2017, v1.3.1
- Fixed compiler warning in MFRC522Extended @Rotzbua
- Removed unused function @Rotzbua
13 Mar 2017, v1.3.0
- Warning: Source has moved to folder src!
- Added addtional class to support ISO/IEC 14443-4 PICCs @JPG-Consulting
- Added RATS (Request for Answer To Select) @JPG-Consulting
- More information see https://github.com/miguelbalboa/rfid/pull/271 @JPG-Consulting
13 Mar 2017, v1.2.1
- Removed need for reset pin #275 @tkoester
- Added SPI speed option + Various minor changes #276 @tuyethoa08041997
- Updated documentation, travis build script and small code change @Rotzbua
3 Jan 2017, v1.2.0
- Warning: This version introduce usage of stdint.h, usage of not well defined int types are abandoned.
Interface has changed: e.g. long -> int32_t
@Rotzbua
- Removed problematic example examples/servo_motor/servo_motor.ino @omersiar
- Added examples/AccessControl/AccessControl.ino @omersiar
- Fixed minor issues reported in #211 @omersiar
- Added bad components hint to README @danielcbit
- Fixed selftest @surr
- Fixed auth problem with long UIDs @surr
26 Aug 2016, v1.1.9
- Warning: Only Arduino IDE version 1.6 is supported, please update your IDE to 1.6 to use this Library.
- Added ESP8266 platform support @Rotzbua
- Changed README.rst content to show more info @Rotzbua
- Minor Changes to examples/ReadUidMultiReader/ReadUidMultiReader.ino example @Rotzbua
11 Feb 2016, v1.1.8
- Added examples/MinimalInterrupt/MinimalInterrupt.ino example, Interrupt example @lmmeng
- Added .gitignore file allows the project to be more easily used as a subproject. @BenWiederhake
- Added Added Teensy 2.0 & Tensy++ 2.0 pinouts to README.rst @jkutianski
16 Jan 2016, v1.1.7
- README.rst Spelling and Grammar Tweak @cuthbertnibbles
- Added examples/servo_motor/servo_motor.ino example, Arduino RFID Access Control with a Servo Motor @techied
- Added examples/RFID-Cloner/RFID-Cloner.ino Copy from rfid cards with standard authentication @stefanblommaert
- Fix compile error at examples/RFID-Cloner/RFID-Cloner.ino, using MFRC522:::PICC_Type, @Rotzbua
06 Jan 2016, v1.1.6
- Fixed compilation error for examples/ReadNUID/ReadNUID.ino example. @Rotzbua
04 Jan 2016, v1.1.5
- Use settings functions on SPI libraries, setSPIConfig was deleted, now the library use SPI.beginTransaction() and SPI.endTransaction() @sophiekovalevsky
- Added examples/ReadNUID/ReadNUID.ino example, showing how to read new NUID from a PICC to serial. @sophiekovalevsky
03 Jan 2016, v1.1.4
- Added Authentication with Ntag 213,215,216 returns the pACK MFRC522::PCD_NTAG216_AUTH @Gargantuanman
- Starting to use versions http://semver.org/
- Continuous Integration @ivankravets
- functions return MFRC522::StatusCode and MFRC522::PICC_Type instead of generic byte @rotzbua
- removed int-values of MFRC522::StatusCode and MFRC522::PICC_Type @rotzbua
05 Dec 2015
- recognize infineon cards correctly @mayatforest
- added multi reader support, see example @lmmeng
10 Nov 2014
- Updated the changelog.
- Added makefile.
24 Oct 2014
- Added PlatformIO-based manifest file.
17 Jul 2014
- Written documentation for the library.
- Added rfid_default_keys example.
11 Jun 2014
- Updated example: ReadAndWrite.
14 Apr 2014
- Updated examples: DumpInfo, MifareClassicValueBlock, and ReadAndWrite.
12 Feb 2014
- Fixed resetPowerDownPin initial state.
29 Jan 2014
- Fixed chipSelectPin initial state.
30 Nov 2013
- Examples put in their own folders.
- Updated the keywords.txt file.
12 Nov 2013
- Updated examples: DumpInfo, MifareClassicValueBlock, and ReadAndWrite.
20 Oct 2013
- All constants, functions and parameters are now commented in English.
- Code refactored, most function names have changed.
- Support ISO-14443-3 anti collission and 4/7/10 byte UIDs (cascade levels).
- Added functions for MIFARE Classic Decrement/Increment/Restore/Transfer
and MIFARE Ultralight Write.
- New examples written.
19 Oct 2013
- Renamed library from RFID to MFRC522 (RFID seemed to generic).
- Register names changed to comply with datasheet.
- Global defines moved into class.
24 Sep 2013
- Turn off encryption when tag is halted.
27 Jan 2013
- Added README and small TODO list.
- Added example to show Serial on LCD display.
09 Sep 2012
- Initial commit to GitHub.

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/*
--------------------------------------------------------------------------------------------------------------------
Example sketch/program showing An Arduino Door Access Control featuring RFID, EEPROM, Relay
--------------------------------------------------------------------------------------------------------------------
This is a MFRC522 library example; for further details and other examples see: https://github.com/miguelbalboa/rfid
This example showing a complete Door Access Control System
Simple Work Flow (not limited to) :
+---------+
+----------------------------------->READ TAGS+^------------------------------------------+
| +--------------------+ |
| | | |
| | | |
| +----v-----+ +-----v----+ |
| |MASTER TAG| |OTHER TAGS| |
| +--+-------+ ++-------------+ |
| | | | |
| | | | |
| +-----v---+ +----v----+ +----v------+ |
| +------------+READ TAGS+---+ |KNOWN TAG| |UNKNOWN TAG| |
| | +-+-------+ | +-----------+ +------------------+ |
| | | | | | |
| +----v-----+ +----v----+ +--v--------+ +-v----------+ +------v----+ |
| |MASTER TAG| |KNOWN TAG| |UNKNOWN TAG| |GRANT ACCESS| |DENY ACCESS| |
| +----------+ +---+-----+ +-----+-----+ +-----+------+ +-----+-----+ |
| | | | | |
| +----+ +----v------+ +--v---+ | +--------------->
+-------+EXIT| |DELETE FROM| |ADD TO| | |
+----+ | EEPROM | |EEPROM| | |
+-----------+ +------+ +-------------------------------+
Use a Master Card which is act as Programmer then you can able to choose card holders who will granted access or not
* **Easy User Interface**
Just one RFID tag needed whether Delete or Add Tags. You can choose to use Leds for output or Serial LCD module to inform users.
* **Stores Information on EEPROM**
Information stored on non volatile Arduino's EEPROM memory to preserve Users' tag and Master Card. No Information lost
if power lost. EEPROM has unlimited Read cycle but roughly 100,000 limited Write cycle.
* **Security**
To keep it simple we are going to use Tag's Unique IDs. It's simple and not hacker proof.
@license Released into the public domain.
Typical pin layout used:
-----------------------------------------------------------------------------------------
MFRC522 Arduino Arduino Arduino Arduino Arduino
Reader/PCD Uno/101 Mega Nano v3 Leonardo/Micro Pro Micro
Signal Pin Pin Pin Pin Pin Pin
-----------------------------------------------------------------------------------------
RST/Reset RST 9 5 D9 RESET/ICSP-5 RST
SPI SS SDA(SS) 10 53 D10 10 10
SPI MOSI MOSI 11 / ICSP-4 51 D11 ICSP-4 16
SPI MISO MISO 12 / ICSP-1 50 D12 ICSP-1 14
SPI SCK SCK 13 / ICSP-3 52 D13 ICSP-3 15
*/
#include <EEPROM.h> // We are going to read and write PICC's UIDs from/to EEPROM
#include <SPI.h> // RC522 Module uses SPI protocol
#include <MFRC522.h> // Library for Mifare RC522 Devices
/*
Instead of a Relay you may want to use a servo. Servos can lock and unlock door locks too
Relay will be used by default
*/
// #include <Servo.h>
/*
For visualizing whats going on hardware we need some leds and to control door lock a relay and a wipe button
(or some other hardware) Used common anode led,digitalWriting HIGH turns OFF led Mind that if you are going
to use common cathode led or just seperate leds, simply comment out #define COMMON_ANODE,
*/
#define COMMON_ANODE
#ifdef COMMON_ANODE
#define LED_ON LOW
#define LED_OFF HIGH
#else
#define LED_ON HIGH
#define LED_OFF LOW
#endif
constexpr uint8_t redLed = 7; // Set Led Pins
constexpr uint8_t greenLed = 6;
constexpr uint8_t blueLed = 5;
constexpr uint8_t relay = 4; // Set Relay Pin
constexpr uint8_t wipeB = 3; // Button pin for WipeMode
boolean match = false; // initialize card match to false
boolean programMode = false; // initialize programming mode to false
boolean replaceMaster = false;
uint8_t successRead; // Variable integer to keep if we have Successful Read from Reader
byte storedCard[4]; // Stores an ID read from EEPROM
byte readCard[4]; // Stores scanned ID read from RFID Module
byte masterCard[4]; // Stores master card's ID read from EEPROM
// Create MFRC522 instance.
constexpr uint8_t RST_PIN = 9; // Configurable, see typical pin layout above
constexpr uint8_t SS_PIN = 10; // Configurable, see typical pin layout above
MFRC522 mfrc522(SS_PIN, RST_PIN);
///////////////////////////////////////// Setup ///////////////////////////////////
void setup() {
//Arduino Pin Configuration
pinMode(redLed, OUTPUT);
pinMode(greenLed, OUTPUT);
pinMode(blueLed, OUTPUT);
pinMode(wipeB, INPUT_PULLUP); // Enable pin's pull up resistor
pinMode(relay, OUTPUT);
//Be careful how relay circuit behave on while resetting or power-cycling your Arduino
digitalWrite(relay, HIGH); // Make sure door is locked
digitalWrite(redLed, LED_OFF); // Make sure led is off
digitalWrite(greenLed, LED_OFF); // Make sure led is off
digitalWrite(blueLed, LED_OFF); // Make sure led is off
//Protocol Configuration
Serial.begin(9600); // Initialize serial communications with PC
SPI.begin(); // MFRC522 Hardware uses SPI protocol
mfrc522.PCD_Init(); // Initialize MFRC522 Hardware
//If you set Antenna Gain to Max it will increase reading distance
//mfrc522.PCD_SetAntennaGain(mfrc522.RxGain_max);
Serial.println(F("Access Control Example v0.1")); // For debugging purposes
ShowReaderDetails(); // Show details of PCD - MFRC522 Card Reader details
//Wipe Code - If the Button (wipeB) Pressed while setup run (powered on) it wipes EEPROM
if (digitalRead(wipeB) == LOW) { // when button pressed pin should get low, button connected to ground
digitalWrite(redLed, LED_ON); // Red Led stays on to inform user we are going to wipe
Serial.println(F("Wipe Button Pressed"));
Serial.println(F("You have 10 seconds to Cancel"));
Serial.println(F("This will be remove all records and cannot be undone"));
bool buttonState = monitorWipeButton(10000); // Give user enough time to cancel operation
if (buttonState == true && digitalRead(wipeB) == LOW) { // If button still be pressed, wipe EEPROM
Serial.println(F("Starting Wiping EEPROM"));
for (uint16_t x = 0; x < EEPROM.length(); x = x + 1) { //Loop end of EEPROM address
if (EEPROM.read(x) == 0) { //If EEPROM address 0
// do nothing, already clear, go to the next address in order to save time and reduce writes to EEPROM
}
else {
EEPROM.write(x, 0); // if not write 0 to clear, it takes 3.3mS
}
}
Serial.println(F("EEPROM Successfully Wiped"));
digitalWrite(redLed, LED_OFF); // visualize a successful wipe
delay(200);
digitalWrite(redLed, LED_ON);
delay(200);
digitalWrite(redLed, LED_OFF);
delay(200);
digitalWrite(redLed, LED_ON);
delay(200);
digitalWrite(redLed, LED_OFF);
}
else {
Serial.println(F("Wiping Cancelled")); // Show some feedback that the wipe button did not pressed for 15 seconds
digitalWrite(redLed, LED_OFF);
}
}
// Check if master card defined, if not let user choose a master card
// This also useful to just redefine the Master Card
// You can keep other EEPROM records just write other than 143 to EEPROM address 1
// EEPROM address 1 should hold magical number which is '143'
if (EEPROM.read(1) != 143) {
Serial.println(F("No Master Card Defined"));
Serial.println(F("Scan A PICC to Define as Master Card"));
do {
successRead = getID(); // sets successRead to 1 when we get read from reader otherwise 0
digitalWrite(blueLed, LED_ON); // Visualize Master Card need to be defined
delay(200);
digitalWrite(blueLed, LED_OFF);
delay(200);
}
while (!successRead); // Program will not go further while you not get a successful read
for ( uint8_t j = 0; j < 4; j++ ) { // Loop 4 times
EEPROM.write( 2 + j, readCard[j] ); // Write scanned PICC's UID to EEPROM, start from address 3
}
EEPROM.write(1, 143); // Write to EEPROM we defined Master Card.
Serial.println(F("Master Card Defined"));
}
Serial.println(F("-------------------"));
Serial.println(F("Master Card's UID"));
for ( uint8_t i = 0; i < 4; i++ ) { // Read Master Card's UID from EEPROM
masterCard[i] = EEPROM.read(2 + i); // Write it to masterCard
Serial.print(masterCard[i], HEX);
}
Serial.println("");
Serial.println(F("-------------------"));
Serial.println(F("Everything is ready"));
Serial.println(F("Waiting PICCs to be scanned"));
cycleLeds(); // Everything ready lets give user some feedback by cycling leds
}
///////////////////////////////////////// Main Loop ///////////////////////////////////
void loop () {
do {
successRead = getID(); // sets successRead to 1 when we get read from reader otherwise 0
// When device is in use if wipe button pressed for 10 seconds initialize Master Card wiping
if (digitalRead(wipeB) == LOW) { // Check if button is pressed
// Visualize normal operation is iterrupted by pressing wipe button Red is like more Warning to user
digitalWrite(redLed, LED_ON); // Make sure led is off
digitalWrite(greenLed, LED_OFF); // Make sure led is off
digitalWrite(blueLed, LED_OFF); // Make sure led is off
// Give some feedback
Serial.println(F("Wipe Button Pressed"));
Serial.println(F("Master Card will be Erased! in 10 seconds"));
bool buttonState = monitorWipeButton(10000); // Give user enough time to cancel operation
if (buttonState == true && digitalRead(wipeB) == LOW) { // If button still be pressed, wipe EEPROM
EEPROM.write(1, 0); // Reset Magic Number.
Serial.println(F("Master Card Erased from device"));
Serial.println(F("Please reset to re-program Master Card"));
while (1);
}
Serial.println(F("Master Card Erase Cancelled"));
}
if (programMode) {
cycleLeds(); // Program Mode cycles through Red Green Blue waiting to read a new card
}
else {
normalModeOn(); // Normal mode, blue Power LED is on, all others are off
}
}
while (!successRead); //the program will not go further while you are not getting a successful read
if (programMode) {
if ( isMaster(readCard) ) { //When in program mode check First If master card scanned again to exit program mode
Serial.println(F("Master Card Scanned"));
Serial.println(F("Exiting Program Mode"));
Serial.println(F("-----------------------------"));
programMode = false;
return;
}
else {
if ( findID(readCard) ) { // If scanned card is known delete it
Serial.println(F("I know this PICC, removing..."));
deleteID(readCard);
Serial.println("-----------------------------");
Serial.println(F("Scan a PICC to ADD or REMOVE to EEPROM"));
}
else { // If scanned card is not known add it
Serial.println(F("I do not know this PICC, adding..."));
writeID(readCard);
Serial.println(F("-----------------------------"));
Serial.println(F("Scan a PICC to ADD or REMOVE to EEPROM"));
}
}
}
else {
if ( isMaster(readCard)) { // If scanned card's ID matches Master Card's ID - enter program mode
programMode = true;
Serial.println(F("Hello Master - Entered Program Mode"));
uint8_t count = EEPROM.read(0); // Read the first Byte of EEPROM that
Serial.print(F("I have ")); // stores the number of ID's in EEPROM
Serial.print(count);
Serial.print(F(" record(s) on EEPROM"));
Serial.println("");
Serial.println(F("Scan a PICC to ADD or REMOVE to EEPROM"));
Serial.println(F("Scan Master Card again to Exit Program Mode"));
Serial.println(F("-----------------------------"));
}
else {
if ( findID(readCard) ) { // If not, see if the card is in the EEPROM
Serial.println(F("Welcome, You shall pass"));
granted(300); // Open the door lock for 300 ms
}
else { // If not, show that the ID was not valid
Serial.println(F("You shall not pass"));
denied();
}
}
}
}
///////////////////////////////////////// Access Granted ///////////////////////////////////
void granted ( uint16_t setDelay) {
digitalWrite(blueLed, LED_OFF); // Turn off blue LED
digitalWrite(redLed, LED_OFF); // Turn off red LED
digitalWrite(greenLed, LED_ON); // Turn on green LED
digitalWrite(relay, LOW); // Unlock door!
delay(setDelay); // Hold door lock open for given seconds
digitalWrite(relay, HIGH); // Relock door
delay(1000); // Hold green LED on for a second
}
///////////////////////////////////////// Access Denied ///////////////////////////////////
void denied() {
digitalWrite(greenLed, LED_OFF); // Make sure green LED is off
digitalWrite(blueLed, LED_OFF); // Make sure blue LED is off
digitalWrite(redLed, LED_ON); // Turn on red LED
delay(1000);
}
///////////////////////////////////////// Get PICC's UID ///////////////////////////////////
uint8_t getID() {
// Getting ready for Reading PICCs
if ( ! mfrc522.PICC_IsNewCardPresent()) { //If a new PICC placed to RFID reader continue
return 0;
}
if ( ! mfrc522.PICC_ReadCardSerial()) { //Since a PICC placed get Serial and continue
return 0;
}
// There are Mifare PICCs which have 4 byte or 7 byte UID care if you use 7 byte PICC
// I think we should assume every PICC as they have 4 byte UID
// Until we support 7 byte PICCs
Serial.println(F("Scanned PICC's UID:"));
for ( uint8_t i = 0; i < 4; i++) { //
readCard[i] = mfrc522.uid.uidByte[i];
Serial.print(readCard[i], HEX);
}
Serial.println("");
mfrc522.PICC_HaltA(); // Stop reading
return 1;
}
void ShowReaderDetails() {
// Get the MFRC522 software version
byte v = mfrc522.PCD_ReadRegister(mfrc522.VersionReg);
Serial.print(F("MFRC522 Software Version: 0x"));
Serial.print(v, HEX);
if (v == 0x91)
Serial.print(F(" = v1.0"));
else if (v == 0x92)
Serial.print(F(" = v2.0"));
else
Serial.print(F(" (unknown),probably a chinese clone?"));
Serial.println("");
// When 0x00 or 0xFF is returned, communication probably failed
if ((v == 0x00) || (v == 0xFF)) {
Serial.println(F("WARNING: Communication failure, is the MFRC522 properly connected?"));
Serial.println(F("SYSTEM HALTED: Check connections."));
// Visualize system is halted
digitalWrite(greenLed, LED_OFF); // Make sure green LED is off
digitalWrite(blueLed, LED_OFF); // Make sure blue LED is off
digitalWrite(redLed, LED_ON); // Turn on red LED
while (true); // do not go further
}
}
///////////////////////////////////////// Cycle Leds (Program Mode) ///////////////////////////////////
void cycleLeds() {
digitalWrite(redLed, LED_OFF); // Make sure red LED is off
digitalWrite(greenLed, LED_ON); // Make sure green LED is on
digitalWrite(blueLed, LED_OFF); // Make sure blue LED is off
delay(200);
digitalWrite(redLed, LED_OFF); // Make sure red LED is off
digitalWrite(greenLed, LED_OFF); // Make sure green LED is off
digitalWrite(blueLed, LED_ON); // Make sure blue LED is on
delay(200);
digitalWrite(redLed, LED_ON); // Make sure red LED is on
digitalWrite(greenLed, LED_OFF); // Make sure green LED is off
digitalWrite(blueLed, LED_OFF); // Make sure blue LED is off
delay(200);
}
//////////////////////////////////////// Normal Mode Led ///////////////////////////////////
void normalModeOn () {
digitalWrite(blueLed, LED_ON); // Blue LED ON and ready to read card
digitalWrite(redLed, LED_OFF); // Make sure Red LED is off
digitalWrite(greenLed, LED_OFF); // Make sure Green LED is off
digitalWrite(relay, HIGH); // Make sure Door is Locked
}
//////////////////////////////////////// Read an ID from EEPROM //////////////////////////////
void readID( uint8_t number ) {
uint8_t start = (number * 4 ) + 2; // Figure out starting position
for ( uint8_t i = 0; i < 4; i++ ) { // Loop 4 times to get the 4 Bytes
storedCard[i] = EEPROM.read(start + i); // Assign values read from EEPROM to array
}
}
///////////////////////////////////////// Add ID to EEPROM ///////////////////////////////////
void writeID( byte a[] ) {
if ( !findID( a ) ) { // Before we write to the EEPROM, check to see if we have seen this card before!
uint8_t num = EEPROM.read(0); // Get the numer of used spaces, position 0 stores the number of ID cards
uint8_t start = ( num * 4 ) + 6; // Figure out where the next slot starts
num++; // Increment the counter by one
EEPROM.write( 0, num ); // Write the new count to the counter
for ( uint8_t j = 0; j < 4; j++ ) { // Loop 4 times
EEPROM.write( start + j, a[j] ); // Write the array values to EEPROM in the right position
}
successWrite();
Serial.println(F("Succesfully added ID record to EEPROM"));
}
else {
failedWrite();
Serial.println(F("Failed! There is something wrong with ID or bad EEPROM"));
}
}
///////////////////////////////////////// Remove ID from EEPROM ///////////////////////////////////
void deleteID( byte a[] ) {
if ( !findID( a ) ) { // Before we delete from the EEPROM, check to see if we have this card!
failedWrite(); // If not
Serial.println(F("Failed! There is something wrong with ID or bad EEPROM"));
}
else {
uint8_t num = EEPROM.read(0); // Get the numer of used spaces, position 0 stores the number of ID cards
uint8_t slot; // Figure out the slot number of the card
uint8_t start; // = ( num * 4 ) + 6; // Figure out where the next slot starts
uint8_t looping; // The number of times the loop repeats
uint8_t j;
uint8_t count = EEPROM.read(0); // Read the first Byte of EEPROM that stores number of cards
slot = findIDSLOT( a ); // Figure out the slot number of the card to delete
start = (slot * 4) + 2;
looping = ((num - slot) * 4);
num--; // Decrement the counter by one
EEPROM.write( 0, num ); // Write the new count to the counter
for ( j = 0; j < looping; j++ ) { // Loop the card shift times
EEPROM.write( start + j, EEPROM.read(start + 4 + j)); // Shift the array values to 4 places earlier in the EEPROM
}
for ( uint8_t k = 0; k < 4; k++ ) { // Shifting loop
EEPROM.write( start + j + k, 0);
}
successDelete();
Serial.println(F("Succesfully removed ID record from EEPROM"));
}
}
///////////////////////////////////////// Check Bytes ///////////////////////////////////
boolean checkTwo ( byte a[], byte b[] ) {
if ( a[0] != 0 ) // Make sure there is something in the array first
match = true; // Assume they match at first
for ( uint8_t k = 0; k < 4; k++ ) { // Loop 4 times
if ( a[k] != b[k] ) // IF a != b then set match = false, one fails, all fail
match = false;
}
if ( match ) { // Check to see if if match is still true
return true; // Return true
}
else {
return false; // Return false
}
}
///////////////////////////////////////// Find Slot ///////////////////////////////////
uint8_t findIDSLOT( byte find[] ) {
uint8_t count = EEPROM.read(0); // Read the first Byte of EEPROM that
for ( uint8_t i = 1; i <= count; i++ ) { // Loop once for each EEPROM entry
readID(i); // Read an ID from EEPROM, it is stored in storedCard[4]
if ( checkTwo( find, storedCard ) ) { // Check to see if the storedCard read from EEPROM
// is the same as the find[] ID card passed
return i; // The slot number of the card
break; // Stop looking we found it
}
}
}
///////////////////////////////////////// Find ID From EEPROM ///////////////////////////////////
boolean findID( byte find[] ) {
uint8_t count = EEPROM.read(0); // Read the first Byte of EEPROM that
for ( uint8_t i = 1; i < count; i++ ) { // Loop once for each EEPROM entry
readID(i); // Read an ID from EEPROM, it is stored in storedCard[4]
if ( checkTwo( find, storedCard ) ) { // Check to see if the storedCard read from EEPROM
return true;
break; // Stop looking we found it
}
else { // If not, return false
}
}
return false;
}
///////////////////////////////////////// Write Success to EEPROM ///////////////////////////////////
// Flashes the green LED 3 times to indicate a successful write to EEPROM
void successWrite() {
digitalWrite(blueLed, LED_OFF); // Make sure blue LED is off
digitalWrite(redLed, LED_OFF); // Make sure red LED is off
digitalWrite(greenLed, LED_OFF); // Make sure green LED is on
delay(200);
digitalWrite(greenLed, LED_ON); // Make sure green LED is on
delay(200);
digitalWrite(greenLed, LED_OFF); // Make sure green LED is off
delay(200);
digitalWrite(greenLed, LED_ON); // Make sure green LED is on
delay(200);
digitalWrite(greenLed, LED_OFF); // Make sure green LED is off
delay(200);
digitalWrite(greenLed, LED_ON); // Make sure green LED is on
delay(200);
}
///////////////////////////////////////// Write Failed to EEPROM ///////////////////////////////////
// Flashes the red LED 3 times to indicate a failed write to EEPROM
void failedWrite() {
digitalWrite(blueLed, LED_OFF); // Make sure blue LED is off
digitalWrite(redLed, LED_OFF); // Make sure red LED is off
digitalWrite(greenLed, LED_OFF); // Make sure green LED is off
delay(200);
digitalWrite(redLed, LED_ON); // Make sure red LED is on
delay(200);
digitalWrite(redLed, LED_OFF); // Make sure red LED is off
delay(200);
digitalWrite(redLed, LED_ON); // Make sure red LED is on
delay(200);
digitalWrite(redLed, LED_OFF); // Make sure red LED is off
delay(200);
digitalWrite(redLed, LED_ON); // Make sure red LED is on
delay(200);
}
///////////////////////////////////////// Success Remove UID From EEPROM ///////////////////////////////////
// Flashes the blue LED 3 times to indicate a success delete to EEPROM
void successDelete() {
digitalWrite(blueLed, LED_OFF); // Make sure blue LED is off
digitalWrite(redLed, LED_OFF); // Make sure red LED is off
digitalWrite(greenLed, LED_OFF); // Make sure green LED is off
delay(200);
digitalWrite(blueLed, LED_ON); // Make sure blue LED is on
delay(200);
digitalWrite(blueLed, LED_OFF); // Make sure blue LED is off
delay(200);
digitalWrite(blueLed, LED_ON); // Make sure blue LED is on
delay(200);
digitalWrite(blueLed, LED_OFF); // Make sure blue LED is off
delay(200);
digitalWrite(blueLed, LED_ON); // Make sure blue LED is on
delay(200);
}
////////////////////// Check readCard IF is masterCard ///////////////////////////////////
// Check to see if the ID passed is the master programing card
boolean isMaster( byte test[] ) {
if ( checkTwo( test, masterCard ) )
return true;
else
return false;
}
bool monitorWipeButton(uint32_t interval) {
uint32_t now = (uint32_t)millis();
while ((uint32_t)millis() - now < interval) {
// check on every half a second
if (((uint32_t)millis() % 500) == 0) {
if (digitalRead(wipeB) != LOW)
return false;
}
}
return true;
}

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/*
* --------------------------------------------------------------------------------------------------------------------
* Example to change UID of changeable MIFARE card.
* --------------------------------------------------------------------------------------------------------------------
* This is a MFRC522 library example; for further details and other examples see: https://github.com/miguelbalboa/rfid
*
* This sample shows how to set the UID on a UID changeable MIFARE card.
* NOTE: for more informations read the README.rst
*
* @author Tom Clement
* @license Released into the public domain.
*
* Typical pin layout used:
* -----------------------------------------------------------------------------------------
* MFRC522 Arduino Arduino Arduino Arduino Arduino
* Reader/PCD Uno/101 Mega Nano v3 Leonardo/Micro Pro Micro
* Signal Pin Pin Pin Pin Pin Pin
* -----------------------------------------------------------------------------------------
* RST/Reset RST 9 5 D9 RESET/ICSP-5 RST
* SPI SS SDA(SS) 10 53 D10 10 10
* SPI MOSI MOSI 11 / ICSP-4 51 D11 ICSP-4 16
* SPI MISO MISO 12 / ICSP-1 50 D12 ICSP-1 14
* SPI SCK SCK 13 / ICSP-3 52 D13 ICSP-3 15
*/
#include <SPI.h>
#include <MFRC522.h>
#include <MFRC522Hack.h>
constexpr uint8_t RST_PIN = 9; // Configurable, see typical pin layout above
constexpr uint8_t SS_PIN = 10; // Configurable, see typical pin layout above
MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance.
MFRC522Hack mfrc522Hack(&mfrc522); // Create MFRC522Hack instance.
/* Set your new UID here! */
byte newUid[] = {0xDE, 0xAD, 0xBE, 0xEF};
MFRC522::MIFARE_Key key;
void setup() {
Serial.begin(9600); // Initialize serial communications with the PC
while (!Serial); // Do nothing if no serial port is opened (added for Arduinos based on ATMEGA32U4)
SPI.begin(); // Init SPI bus
mfrc522.PCD_Init(); // Init MFRC522 card
Serial.println(F("Warning: this example overwrites the UID of your UID changeable card, use with care!"));
// Prepare key - all keys are set to FFFFFFFFFFFFh at chip delivery from the factory.
for (byte i = 0; i < 6; i++) {
key.keyByte[i] = 0xFF;
}
}
// Setting the UID can be as simple as this:
//void loop() {
// byte newUid[] = NEW_UID;
// if ( mfrc522.MIFARE_SetUid(newUid, (byte)4, true) ) {
// Serial.println("Wrote new UID to card.");
// }
// delay(1000);
//}
// But of course this is a more proper approach
void loop() {
// Look for new cards, and select one if present
if ( ! mfrc522.PICC_IsNewCardPresent() || ! mfrc522.PICC_ReadCardSerial() ) {
delay(50);
return;
}
// Now a card is selected. The UID and SAK is in mfrc522.uid.
// Dump UID
Serial.print(F("Card UID:"));
for (byte i = 0; i < mfrc522.uid.size; i++) {
Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
Serial.print(mfrc522.uid.uidByte[i], HEX);
}
Serial.println();
// Dump PICC type
// MFRC522::PICC_Type piccType = mfrc522.PICC_GetType(mfrc522.uid.sak);
// Serial.print(F("PICC type: "));
// Serial.print(mfrc522.PICC_GetTypeName(piccType));
// Serial.print(F(" (SAK "));
// Serial.print(mfrc522.uid.sak);
// Serial.print(")\r\n");
// if ( piccType != MFRC522::PICC_TYPE_MIFARE_MINI
// && piccType != MFRC522::PICC_TYPE_MIFARE_1K
// && piccType != MFRC522::PICC_TYPE_MIFARE_4K) {
// Serial.println(F("This sample only works with MIFARE Classic cards."));
// return;
// }
// Set new UID
if ( mfrc522Hack.MIFARE_SetUid(newUid, (byte)4, true) ) {
Serial.println(F("Wrote new UID to card."));
}
// Halt PICC and re-select it so DumpToSerial doesn't get confused
mfrc522.PICC_HaltA();
if ( ! mfrc522.PICC_IsNewCardPresent() || ! mfrc522.PICC_ReadCardSerial() ) {
return;
}
// Dump the new memory contents
Serial.println(F("New UID and contents:"));
mfrc522.PICC_DumpToSerial(&(mfrc522.uid));
delay(2000);
}

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/*
* --------------------------------------------------------------------------------------------------------------------
* Example sketch/program showing how to read data from a PICC to serial.
* --------------------------------------------------------------------------------------------------------------------
* This is a MFRC522 library example; for further details and other examples see: https://github.com/miguelbalboa/rfid
*
* Example sketch/program showing how to read data from a PICC (that is: a RFID Tag or Card) using a MFRC522 based RFID
* Reader on the Arduino SPI interface.
*
* When the Arduino and the MFRC522 module are connected (see the pin layout below), load this sketch into Arduino IDE
* then verify/compile and upload it. To see the output: use Tools, Serial Monitor of the IDE (hit Ctrl+Shft+M). When
* you present a PICC (that is: a RFID Tag or Card) at reading distance of the MFRC522 Reader/PCD, the serial output
* will show the ID/UID, type and any data blocks it can read. Note: you may see "Timeout in communication" messages
* when removing the PICC from reading distance too early.
*
* If your reader supports it, this sketch/program will read all the PICCs presented (that is: multiple tag reading).
* So if you stack two or more PICCs on top of each other and present them to the reader, it will first output all
* details of the first and then the next PICC. Note that this may take some time as all data blocks are dumped, so
* keep the PICCs at reading distance until complete.
*
* @license Released into the public domain.
*
* Typical pin layout used:
* -----------------------------------------------------------------------------------------
* MFRC522 Arduino Arduino Arduino Arduino Arduino
* Reader/PCD Uno/101 Mega Nano v3 Leonardo/Micro Pro Micro
* Signal Pin Pin Pin Pin Pin Pin
* -----------------------------------------------------------------------------------------
* RST/Reset RST 9 5 D9 RESET/ICSP-5 RST
* SPI SS SDA(SS) 10 53 D10 10 10
* SPI MOSI MOSI 11 / ICSP-4 51 D11 ICSP-4 16
* SPI MISO MISO 12 / ICSP-1 50 D12 ICSP-1 14
* SPI SCK SCK 13 / ICSP-3 52 D13 ICSP-3 15
*/
#include <SPI.h>
#include <MFRC522.h>
constexpr uint8_t RST_PIN = 9; // Configurable, see typical pin layout above
constexpr uint8_t SS_PIN = 10; // Configurable, see typical pin layout above
MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance
void setup() {
Serial.begin(9600); // Initialize serial communications with the PC
while (!Serial); // Do nothing if no serial port is opened (added for Arduinos based on ATMEGA32U4)
SPI.begin(); // Init SPI bus
mfrc522.PCD_Init(); // Init MFRC522
mfrc522.PCD_DumpVersionToSerial(); // Show details of PCD - MFRC522 Card Reader details
Serial.println(F("Scan PICC to see UID, SAK, type, and data blocks..."));
}
void loop() {
// Look for new cards
if ( ! mfrc522.PICC_IsNewCardPresent()) {
return;
}
// Select one of the cards
if ( ! mfrc522.PICC_ReadCardSerial()) {
return;
}
// Dump debug info about the card; PICC_HaltA() is automatically called
mfrc522.PICC_DumpToSerial(&(mfrc522.uid));
}

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/*
* --------------------------------------------------------------------------------------------------------------------
* Example sketch/program to fix a broken UID changeable MIFARE cards.
* --------------------------------------------------------------------------------------------------------------------
* This is a MFRC522 library example; for further details and other examples see: https://github.com/miguelbalboa/rfid
*
* This sample shows how to fix a broken UID changeable MIFARE cards that have a corrupted sector 0.
*
* @author Tom Clement
* @license Released into the public domain.
*
* Typical pin layout used:
* -----------------------------------------------------------------------------------------
* MFRC522 Arduino Arduino Arduino Arduino Arduino
* Reader/PCD Uno/101 Mega Nano v3 Leonardo/Micro Pro Micro
* Signal Pin Pin Pin Pin Pin Pin
* -----------------------------------------------------------------------------------------
* RST/Reset RST 9 5 D9 RESET/ICSP-5 RST
* SPI SS SDA(SS) 10 53 D10 10 10
* SPI MOSI MOSI 11 / ICSP-4 51 D11 ICSP-4 16
* SPI MISO MISO 12 / ICSP-1 50 D12 ICSP-1 14
* SPI SCK SCK 13 / ICSP-3 52 D13 ICSP-3 15
*/
#include <SPI.h>
#include <MFRC522.h>
#include <MFRC522Hack.h>
constexpr uint8_t RST_PIN = 9; // Configurable, see typical pin layout above
constexpr uint8_t SS_PIN = 10; // Configurable, see typical pin layout above
MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance.
MFRC522Hack mfrc522Hack(&mfrc522); // Create MFRC522Hack instance.
MFRC522::MIFARE_Key key;
void setup() {
Serial.begin(9600); // Initialize serial communications with the PC
while (!Serial); // Do nothing if no serial port is opened (added for Arduinos based on ATMEGA32U4)
SPI.begin(); // Init SPI bus
mfrc522.PCD_Init(); // Init MFRC522 card
Serial.println(F("Warning: this example clears your mifare UID, use with care!"));
// Prepare key - all keys are set to FFFFFFFFFFFFh at chip delivery from the factory.
for (byte i = 0; i < 6; i++) {
key.keyByte[i] = 0xFF;
}
}
void loop() {
if ( mfrc522Hack.MIFARE_UnbrickUidSector(false) ) {
Serial.println(F("Cleared sector 0, set UID to 1234. Card should be responsive again now."));
}
delay(1000);
}

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