Code for Temperature Sensor in Arduino

Temperature_Sensor_in_Arduino.ino

int tempPin = A0; //Number of Temperature Sensor Pin
int analoginput; //Variable to store Analog Input Value
float temp; //Variable to store Temperature in C

void setup()
{
  // Begin the Serial Monitor at 9600 Baud
  Serial.begin(9600);
}

void loop()
{
  //Get the Analog Input and store in analoginput variable
  analoginput = analogRead(tempPin);
  //Convert the Analog Input value to Temperature in C
  temp = (5.0 * analoginput * 100.0) / 1024;
  //Print the Temperature in Serial Monitor
  Serial.println(temp);
  delay(1000);
}