The values of the temperature sensor are entered into the microcontroller. The microcontroller reads the values of the temperature sensor, provided that the temperature exceeds the microcontroller of the setpoint gives a buzzer as a warning of fire. And we can change the sensitivity using a variable resistor. Apart from the temperature sensor we are also using a smoke sensor. So here we are not only monitoring the temperature and also the smoke, for this smoke sensor we will also connect a variable resistor, using this we can change the sensitivity. Whenever the smoke sensor values exceed the set point, the microcontroller will beep....