/*
SparkFun Inventor’s Kit

using the temperature sensor to measure the temperature in Centigrade
the readings displayed on the serial monitor 
This code is completely free for any use.

*/


float voltage = 0;                          //the voltage measured from the TMP36
float degreesC = 0;                         //the temperature in Celsius, calcuated from the voltage
                  
void setup() {
  // initialize the serial port
  Serial.begin(9600);
}

void loop() {
  // integra value read from by the Arduino from the temp sensor
  int analogValue;

  analogValue = analogRead(A0);
  
  voltage = ((float) analogValue) * 5 / 1023;   //convert the analog reading, which varies from 0 to 1023, back to a voltage value from 0-5 volts
  
  // the sensor outputs 0.01 volt for every degree Centigrade (Celsius) 
  degreesC = voltage * 100.0;       //convert the voltage to a temperature in degrees Celsius. 

  Serial.print("sensor value: ");
  Serial.println(analogValue);
  Serial.print("Temp.: ");
  Serial.println(degreesC);
    
  delay(1000);                              //delay for 1 second between each reading (this makes the display less noisy)
}