Example 7 Temprature Sensor

[Ahmad Altonji]

// Example_7_Temprature_Sensor_www.altonji.net
const int sensorPin = A0; 
int reading;
float voltage;
float temperatureC;
void setup(  )
{ Serial.begin(9600); }
void loop (  )                    
 {
reading = analogRead(sensorPin);  
voltage = reading * 5.0/1024;
Serial.print(voltage); 
Serial.println(" volts");
temperatureC = (voltage - 0.5) * 100 ;  
Serial.println("Temperature is: ");
Serial.print(temperatureC);
 Serial.println(" degrees C");
delay(1000);
 }