Step 6Wiring It Up
Drill a hole in the right side of the mouse, and file it out so that we can fit the switch. Hot glue it in place.
The wiring circuit is very simple. Identify the 5V and GND wires on the mouse board, and solder the positive wire from your motor to the 5V wire on the board. Solder the GND wire of your motor to the switch.
Now, we need to figure out how to connect to the mouse buttons. Most mice buttons have 3 pins, but two are normally connected together or one is not connected at all. We need to use the two outer pins.
Solder a wire from our switch to one side of the button, then solder another wire to the opposite side. Solder that wire to the GND wire of the mouse.
Make sure that there aren't any shorts from 5V to GND, which could damage your USB port. Now, plug in the mouse and try clicking the mouse button. If the motor spins, then its working!
Put the motor in place and hot glue it, making sure that it isn't shorting out any of the circuits on the mouse.
If all is well, we can move to the next step.
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