Here's a more detailed post about my 37-key QAZ-inspired keyboard. Same as tominabox1 and whydobearsxplod's QAZ, PCB can accommodate a 6.25u spacebar or a 2.00+2.25u combination.
Version 1
P37 was originally designed with the smallest but commercially available RP2040 micro-controller in mind. Waveshare's RP2040 Zero was, and still is, the best candidate with these requirements.
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| Barebones in 3D Printed Casing. |
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| Barebones in stacked acrylic casing. |
Version 2
Version 2, on the other hand, was designed specifically for SparkFun's Pro Micro footprints. The primary advantage is the integration of RP2040 and NRF52840 microchips into these footprints. This setup allows for the full functionality of QMK Firmware through Vial and wireless connectivity via ZMK Firmware’s Bluetooth Low Energy (BLE) support.
Due to this change in footprints, microcontroller was moved to the right side. An On/Off switch and pin out for battery was also added.
More Photos
Resources
Casing 3D Model (choose p37-qaz-r1.stl for version 1)
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