You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
37 lines
1.0 KiB
37 lines
1.0 KiB
3 years ago
|
//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);
|
||
|
|
}
|