In order to drive high power outputs with Arduino such as high power dc motor high power led we need a mosfet to do the job so, let’s get started.

Gather Your Components

Arduino uno : Buying Link

IRFZ44N : Buying Link

or any other equivalent.



12v power Supply

Dc motor / high power led as output


follow the connections shown in schematics otherwise refer to the video.

The logic is really simple the voltage provided by Arduino on the gate of Mosfet will decide its output current, so higher the voltage higher the current.


You can use any of the Mosfet’s but when it comes to choose one of them try to use IRLZ44N because it is a logic level MOSFET so it will respond for low voltages too that means current will conduct even on 2.5v or 3..3v or 5v but in IRFZ44N & IRF530N they will provide enough current for the operation at such voltages and driving high current such as 8 or 10A by gate voltage 5v they heat too much so avoid them but if you want to use IRF530N or IRFZ44N then go for IRF530N.


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