Temperature Based Fan Speed Controller Using Arduino

Arduino is at the heart of the circuit as it controls all functions.

Temperature based fan speed controller using arduino.

Now arduino board is very progressive among all electronic circuits thus we employed arduino board for fan speed control the proposed system is designed to detect the temperature of the room and. Circuit diagram of the temperature based fan speed control monitoring with arduino lm35 is shown above. Circuit diagram of the temperature based fan speed control and monitoring using arduino. Lm35 is a precision integrated circuit whose output voltage is linearly proportional to celsius centigrade temperature.

In this arduino based project we are going to control dc fan speed according to the room temperature and show these parameter changes on a 16x2 lcd display. The temperature based fan speed control system can be done by using an electronic circuit using an arduino board. Circuit diagram of the temperature fan speed control and monitoring is shown in fig. It is built around arduino uno board board1 16 2 lcd lcd1 temperature sensor lm35 ic1 and a few other components.

These values are used to control the speed of the fan using pwm and the analogwrite. It is accomplished by the data communications between arduino lcd dht11 sensor module and dc fan that is controlled by using pwm.