The project helps you control two fan’s to cool whatever you need by adjust the trimpot. It works by cooling with the first fan when the sensor detects a user adjustable temperature, and it turns the second fan on, when the temperature exceeds 5 degrees over the user adjusted temperature.Each fan turns off when the temperature drops 5 degrees below its turn-on temperature. For example, if the trimpot is set to 80 degrees, the fan turns on at 80 degrees and turns off at 75 degrees.The circuit controlled by ATtiny45.
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