• Garvit Kumar
• Yashwant Kumar
• Vijendra Pal Singh
• Nodeep
• Vivek Kumar

In present scenario, availability of electricity is found to reach crucial stage. To protect and safeguard one’s future we need to save the energy. As a slogan suggest “One unit saved is one unit generated”. The project is a standalone automatic fan speed controller that controls the speed of an electric fan according to our requirement. Use of embedded technology makes this closed loop feedback control system efficient and reliable. Arduino microcontroller allows dynamic and faster control. Liquid crystal display (LCD) makes the system user friendly. The sensed temperature and fan speed level values are simultaneously displayed on the LCD panel. It is very compact as it is constructed by using few components and can be interfaced for several applications including air- conditioners, water-heaters, snow-melters, ovens, heat-exchangers, mixers, furnaces, incubators, thermal baths and veterinary operating tables. Arduino micro controller is the heart of the circuit as it controls all the functions. The temperature sensor LM35 senses the temperature and converts it into an electrical signal, which is forwarded to the microcontroller. The sensed and set values of the temperature are displayed on the 16x2-line LCD. The microcontroller drives Transistor to control the fan speed. This project uses regulated 12V, 2A power supply. This project is useful in process industries for maintenance and controlling of Boilers temperature.

"Arduino Based Speed Control of DC Motor", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 8, page no.c482-c489, August-2021, Available :http://www.jetir.org/papers/JETIR2108311.pdf

"Arduino Based Speed Control of DC Motor", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 8, page no. ppc482-c489, August-2021, Available at : http://www.jetir.org/papers/JETIR2108311.pdf