[IC] Inexpensive Computers NumpadA: Fully programmable numpad and macro pad PCB

[anna328p]

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

[honoka]

acrylic case would be cool

[anna328p]

acrylic case would be cool

I am definitely going to be creating a stacked case that can be manufactured from acrylic, as well as a 3D-printable case.

[honoka]

would you offer a case aswell or only the files to create your own?

[anna328p]

would you offer a case aswell or only the files to create your own?

I will be offering a case.