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【IC】Inexpensive Computers NumpadA: Fully programmable numpad and macro pad PCB

类型: IC
作者: anna328p
发布时间: 2020-04-26 07:21:00
更新时间: 2020-04-26 07:21:00
原链接: https://geekhack.org/index.php?topic=105974.0


I have been working on a numpad/macro-pad that fits a niche I haven’t seen filled yet: open-source PCB, support for the QMK firmware, and no microcontroller board necessary.
Interest Check Form
Here are some photos of the latest prototype:
Assembled
Board front
Board back
Render of board front
Render of board back
USB numpad with standard layout, extra keys, and macro support. Will support the QMK firmware on launch. Requires 21 switches (MX, Alps, Choc), 21 keycaps, and a case (can be used without a case).
STM32F103C8T6 microcontroller, USB-C port. Access the bootloader by holding backspace (top-right key) while plugging in the board.
Features include:

  • Full n-key rollover
  • Standard PC numpad layout for keycap compatibility, with an extra row spaced 1/3u up.
  • Fully programmable, with macro support and Fn key.
    I have not designed the case yet, but the final group buy will include one. The interest check form has some questions about cases.
    The price is targeted at around $20-25 for the PCB.
    Interest Check Form
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