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geekhack Projects => Making Stuff Together! => Topic started by: hlord2000 on Sat, 22 January 2022, 01:50:44

Title: [opensource] planck style diode-less keyboard with CircuitPython firmware
Post by: hlord2000 on Sat, 22 January 2022, 01:50:44

(https://cdn.discordapp.com/attachments/907048304150474852/934332918334128150/unknown.png)
This is my first keyboard design. It uses MCP23017 I/O expanders instead of a diode matrix. All of the cool bits are on top of the board for your viewing pleasure. It uses an RP2040 microcontroller—specifically a QTPy from Adafruit (which is compatible with any other Seeduino form factor board).
(https://cdn.discordapp.com/attachments/907048304150474852/934332999934312488/unknown.png)
For more information, check out my GitHub repo at https://github.com/hlord2000/Keeboord

Title: Re: [opensource] planck style diode-less keyboard with CircuitPython firmware
Post by: suicidal_orange on Sat, 22 January 2022, 02:32:16

What a crazy idea, in a good way :thumb:

Looks like it's finished, have you built one to confirm it works or still waiting for prototypes?

Title: Re: [opensource] planck style diode-less keyboard with CircuitPython firmware
Post by: hlord2000 on Sat, 22 January 2022, 14:12:23

Yes I have made two different prototypes. Here’s the latest one—it’s functionally identical to the final product but two lines were accidentally swapped, that’s why you have the little pigtail off of the MCU. ] (http://[attachimg=1)