Love it or hate it, TrackPoint can be a powerful tool. Love it or hate it, the idea of moving the mouse without removing your hands from the keys has an appeal. [Alon Swartz] incorporated one into his custom wired split mechanical keyboard and wrote a helpful guide on how to do it yourself.
The first step was to determine the pinout of the Trackpoint, which he provides a handy repository of various devices with annotations and pictures. The next step is swapping the little rubber nub at the top for something a bit longer. As the PCB sits below the keys, a labret cheek piercing happens to be a perfect candidate. Strong, thin, easily obtainable in different lengths, and threaded on one end. With jewelry in hand, [Alon] created a reset circuit with just a few resistors and a capacitor so the teensy can trigger a reset of the Trackpoint. The keyboard’s TMK firmware also needed a few tweaks to support reading the Trackpoint.
It’s a great guide, and we love the use of the jewelry as a piece of the keyboard. A knitting needle was used in a previous attempt to add a Trackpoint to a mechanical keyboard, and we’re excited to see what other household items end up in keyboards.
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