Fan

I will show you how to make a cool fan using a cpu cooler

-Pushbotton

-Battery

-Fan

-Arduino nano (you can use any other microcontroller)

-A cable

-Clip for Battery

-3D printed parts(You can download mine or make your own)

You first need to conect the fan cables like shown in the picture. The black to the GND and the red to one side of the pushbutton (You don't need the yellow cable so you can cut it or just leave it to one side).

You need to connect the red cable to the 5V and the black to the GND of the arduino nano.

You then need to connect another cable to the 5V of the arduino nano and to the other side of the pushbutton.

The arduino nano should have ended up as shown in the photo and finally to make it beautiful you fit all the cables, battery and arduino in the 3D printed parts.

Your final result should be a simple, cute and useful fan.