Temp

<

/*     ———————————————————

 *     |  Arduino Experimentation Kit Example Code             |

 *     |  CIRC-10 .: Temperature :. (TMP36 Temperature Sensor) |

 *     ———————————————————

 *

 *  A simple program to output the current temperature to the IDE’s debug window

 *

 *  For more details on this circuit: http://tinyurl.com/c89tvd

 */

//TMP36 Pin Variables

int temperaturePin = 0; //the analog pin the TMP36’s Vout (sense) pin is connected to

                        //the resolution is 10 mV / degree centigrade

                        //(500 mV offset) to make negative temperatures an option
/*

 * setup() – this function runs once when you turn your Arduino on

 * We initialize the serial connection with the computer

 */

void setup()

{

  Serial.begin(9600);  //Start the serial connection with the copmuter

                       //to view the result open the serial monitor

                       //last button beneath the file bar (looks like a box with an antenae)

}
void loop()                     // run over and over again

{

 float temperature = getVoltage(temperaturePin);  //getting the voltage reading from the tem

                    //perature sensor

 temperature = (temperature – .5) * 100;          //converting from 10 mv per degree wit 500

                    // mV offset

                                                  //to degrees ((volatge – 500mV) times 100)

 Serial.println(temperature);                     //printing the result

 delay(1000);                                     //waiting a second

}
/*

 * getVoltage() – returns the voltage on the analog input defined by

 * pin

 */

float getVoltage(int pin){

 return (analogRead(pin) * .004882814); //converting from a 0 to 1023 digital range

                                        // to 0 to 5 volts (each 1 reading equals ~ 5 milliv

                    //olts

}