//Temperature sensor

int ThermistorPin = A0;
int Vo;
int PWM;
float R1 = 100000;
float logR2, R2, T, Tc, Tf;
float c1 = 1.009249522e-03, c2 = 2.378405444e-04, c3 = 2.019202697e-07;

void setup() {
Serial.begin(9600);
Serial.print("c1:");  
Serial.println(c1,10);

Serial.print("c2:");  
Serial.println(c2,10);

Serial.print("c3:");  
Serial.println(c3,10);




}

void loop() {

  Vo = analogRead(ThermistorPin);
Serial.print("voltage: ");  
Serial.println(Vo);
  
  R2 = R1 * (1023.0 / (float)Vo - 1.0);
Serial.print("R2: "); 
Serial.print(R2);

  
  logR2 = log(R2);
Serial.print("logR2: "); 
Serial.print(logR2);

  
  T = (1.0 / (c1 + c2*logR2 + c3*logR2*logR2*logR2));
Serial.print("Temp: "); 
Serial.print(T);

  
  Tc = T - 273.15+54;
  Serial.print("Temperature: "); 
  Serial.print(Tc);
  Serial.println(" C");   

  delay(500);
}