NextPCB is one of the most experienced PCB manufacturers in Global, has specialized in the PCB and assembly industry for over 15 years. Here the Temperature controlled fan will act to the temperature changes. You can take this as a DIY project which can be used anywhere. So this project can be very useful in understanding the basics, how you can control the temperature at your home. Temperature controlling is required in many places such as server rooms, houses, industries, etc. Then we will check if the temperature value is greater than 35 or not, if the temperature will be greater than 35, then the relay will be activated and the fan will start to rotate. ![]() We will use the DHT22 sensor to get the temperature value and we will print this temperature value on the LCD. In this article, you are going to learn about Arduino temperature controlled fan using DHT22 sensor and relay.
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