I have two things: Arduino UNO V3 Two Wire (black and white wire) Fan which i took out from my cooling pad controlled via USB power Specification on the box of cooling pad: i) Voltage 5V DC ii) Fan Speed(adjustable) 750-1500rpm iii) Power Input 2W iv) Curent: 0.4(MAX) So here are my question…

How to cotrol fan with Arduino

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