Build Instructions

Collapse

• 1

  Run a Program

  #include
  #include "LiquidCrystal.h"
  LiquidCrystal lcd(44,46,40,52,50,48);
  float A = 1.009249522e-03, B = 2.378405444e-04, C = 2.019202697e-07;
  float T,logRt,Tf,Tc;
  float Thermistor(int Vo) {
  logRt = log(10000.0*((1024.0/Vo-1)));
  T = (1.0 / (A + B*logRt + C*logRt*logRt*logRt)); // We get the temperature value in Kelvin from this Stein-Hart equation
  Tc = T - 273.15; // Convert Kelvin to Celcius
  Tf = (Tc * 1.8) + 32.0; // Convert Kelvin to Fahrenheit
  return T;
  }

  void setup(){
  lcd.begin(16,2);
  lcd.clear();
  }

  void loop()
  {
  lcd.setCursor(0,0);
  lcd.print("Temp:");
  lcd.print((Thermistor(analogRead(0))));
  lcd.print("k ");
  
  lcd.setCursor(0,1);
  lcd.print((Tc));
  lcd.print(" C ;");

  lcd.setCursor(9,1);
  lcd.print((Tf));
  lcd.print(" F");
  delay(800);
  }

View all instructions