int LMT87 = P1_7;
int TMP37 = P1_6;

float LMT87raw = 0;
float LMT87mV = 0;
float TMP37raw = 0;
float TMP37mV = 0;

double mult = 3.477;

double LMT87tempC = 0;
double TMP37tempC = 0;

double diff;

void setup()
{
  Serial.begin(9600);
}

void loop() {

  // read data
  LMT87raw = analogRead(LMT87);
  TMP37raw = analogRead(TMP37);

  // calculate values
  TMP37mV = TMP37raw*mult;
  TMP37tempC = TMP37mV/20;

  LMT87mV = LMT87raw*mult;
  LMT87tempC = -0.01488*((5*LMT87mV)-13163);

  diff = TMP37tempC-LMT87tempC;

  // display results
  Serial.print(TMP37tempC);
  Serial.print("   ");
  Serial.print(LMT87tempC);
  Serial.print("   ");
  Serial.println(diff);

  // if the difference between the two is more than 2C, blink red. Else blink green.
  if (diff>=2){
    digitalWrite(RED_LED, HIGH);
    delay(300);
    digitalWrite(RED_LED, LOW);
    delay(300);
  }
  else{
    digitalWrite(GREEN_LED, HIGH);
    delay(300);
    digitalWrite(GREEN_LED, LOW);
    delay(300);
  }

  // stop reading when button2 is pressed
  if (digitalRead(PUSH2)==LOW) {
  Serial.println("end");
  Serial.end();
  while(true);
  }

  delay(1000);        // delay in between reads for stability
}