r/qmk

Hi everyone,

I never coded more than a "if then" fonction in excel. I work with 3 customers and would like to have a custom color per layer/customer. ChatGPT was very cagey about flashing a custom firmware, he is now telling me to query the aliexpress vendor for QMK source code with this communication:

"Hi,

I have a ZUOYA GMK26 keyboard.

My keyboard information is:

Model: ZUOYA GMK26
USB VID: 0x36B0
USB PID: 0x3083
Firmware uses QMK/VIA and RGB Matrix.

I would like to customize the firmware, specifically to have different RGB colors for each keyboard layer.

Could you please provide the complete QMK source code corresponding to the GMK26 firmware, including:

keyboard source files
keymap files
rules.mk
config.h
info.json / VIA definition if applicable
any other files required to compile the firmware

I am not looking for only the compiled firmware .bin file. I need the complete source code required to build the firmware."

I thought maybe a kind redditor could guide me from there? Maybe, just confirming im not on my way to brick my numpad? Thank you

Hi everyone!

I’ve been working on a small project: a USB-to-USB converter for QMK. The goal is to allow more flexible connectivity for custom setups.

The core logic is based on the work by sekigon. I’ve implemented some modifications to make it work specifically for USB-to-USB bridging.

If there is enough interest in this, I’m share the source code and the assembly schematics with the community.

Let me know what you think in the comments!

Update. I worked on this project a long time ago, so it's currently running QMK version 0.22. The kit includes an RP2040-zero chip, an OLED display, and a buzzer. It costs less than $10. All the main QMK features work.

Update2. I’ve made the repository public. I haven’t prepared the hardware assembly instructions yet, but that shouldn’t be a problem for those in the know. https://github.com/DmitryMarugin/rp2040.git

Custom color per layer for GMK26

QMK usb-usb converter