A 4-channel 12V-G-R-B controller for RGB fans and LED strips using the Raspberry Pi Pico and controlled via USB HID. Designed to be installed inside a PC case as an alternative or addition to motherboard headers.
It implements the "Lighting and Illumination" (0x59) HID usage page, making
it fully compatible with the Dynamic Lighting feature in Windows 11.
It also implements the "Sensors" (0x20) HID usage page (for a temperature
sensor) and a vendor (0xFF00) HID usage page for custom controls.
Note this does not support 3-pin addressable RGB LEDs, but uses the semi-standard 4-pin 12V-G-R-B connector, where all devices connected to a channel show the same color.
When running in autonomous mode, the controller implements configurable animations. Use the CLI to set the parameters or save an animation as the default for a channel.
Fades a single color on and off. The fade on time, on time, fade off time, and off time are all configurable.
breathe_sm.mp4
Fades between up to 8 different colors. The fade time and hold time are configurable.
fade_sm.mp4
This project is split into three parts:
hw/contains schematics and PCB files (KiCAD)fw/contains device firmware (C)cli/contains the command-line control program (Rust)
See each directory for more details.
The hardware is only tested on Windows 11, using both the Dynamic Lighting feature and the included CLI. The CLI does not support other platforms yet.
MIT