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geekhack Marketplace => Interest Checks => Topic started by: anna328p on Sun, 26 April 2020, 07:21:00

Title: [IC] Inexpensive Computers NumpadA: Fully programmable numpad and macro pad PCB
Post by: anna328p on Sun, 26 April 2020, 07:21:00
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 (https://forms.gle/vHc4WnfdMWMqvGXj8)


Here are some photos of the latest prototype:
Assembled (https://boards.inexpensivecomputers.net/wp-content/uploads/2020/04/IMG_20200323_203738-scaled.jpg)
Board front (https://i.imgur.com/qHjVHr1.jpg)
Board back (https://i.imgur.com/E6s0qU5.jpg)
Render of board front (https://i.imgur.com/xH5Qjwl.png)
Render of board back (https://i.imgur.com/l5gs9E0.png)


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 (https://forms.gle/vHc4WnfdMWMqvGXj8)
Title: Re: [IC] Inexpensive Computers NumpadA: Fully programmable numpad and macro pad PCB
Post by: honoka on Sun, 26 April 2020, 07:46:32
acrylic case would be cool
Title: Re: [IC] Inexpensive Computers NumpadA: Fully programmable numpad and macro pad PCB
Post by: anna328p on Sun, 26 April 2020, 09:03:28
Quote from: honoka on Sun, 26 April 2020, 07:46:32
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.
Title: Re: [IC] Inexpensive Computers NumpadA: Fully programmable numpad and macro pad PCB
Post by: honoka on Sun, 26 April 2020, 09:24:09
would you offer a case aswell or only the files to create your own?
Title: Re: [IC] Inexpensive Computers NumpadA: Fully programmable numpad and macro pad PCB
Post by: anna328p on Sun, 26 April 2020, 23:43:08
Quote from: honoka on Sun, 26 April 2020, 09:24:09
would you offer a case aswell or only the files to create your own?

I will be offering a case.