The Magic Trackpad Plugger is a USB power supply for the Apple Magic Trackpad. You stick it in the battery cavity in place of the two AA batteries. It has a 3.3 volt LDO regulator and a short USB cable.
With it, you no longer need to replace or recharge batteries in the trackpad when using it in desktop applications, particularly when it sits directly next to an Apple wired keyboard, with USB power literally inches away.
The trackpad still communicates with the host over Bluetooth. This is just using the USB for power.
It comes ready to use - with the USB cable soldered and hot-glued in place and the two contact wires installed.
It irked me greatly that my trackpad sat inches away from a USB port capable of supplying it all of the power it needs.
The board is the size of two AA batteries. Its shape holds it in the middle of the battery cavity. In the front of it is a small loop of wire. On the back corner is another. You stick the board in and "wedge" the wire into the threads in the back intended to accept the original metal plug. Plug in the USB cable and you're done.
There are some instructables with similar solutions, but none of them include a step-down voltage regulator, which reduces the 5 volt USB power down to something closer to what a pair of AA batteries normally supplies.
Robert | Dec. 1, 2014
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I design and build small, useful electronic things. I started in 2013 after leasing an electric car and deciding that I could build my own charging station. Since then, I've gone on to design lots of things to fill particular needs.
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