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