I am trying to work my dc fan when temp rises with pwm. When I connect it with arduino's power supply(5V), it works with analogWrite(fan, tempMin, tempMax, 188, 255). But when I try to connect it with a 12V power supply, transistor and diod, it doesnt move a inch. [image] This is my code: #inclu…

My dc fan doesnt work when connecting with transistor

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