// Click on the temp sensor module to open up a slider where you can control the temp.

const float BETA = 3950; // should match the Beta Coefficient of the thermistor
const int TARGET = 30;
// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(12, OUTPUT);
  Serial.begin(9600);
}


// the loop function runs over and over again forever
void loop() {
  int analogValue = analogRead(A0);
  float celsius = 1 / (log(1 / (1023. / analogValue - 1)) / BETA + 1.0 / 298.15) - 273.15;
  
  if(celsius < TARGET){
    digitalWrite(12, HIGH);   // turn the LED on (HIGH is the voltage level)
  } else {
    digitalWrite(12, LOW);    // turn the LED off by making the voltage LOW
  }
  Serial.print("Temperature: ");
  Serial.print(celsius);
  Serial.println(" ℃");
  delay((1000));
}