Show HN: A Truly Modular Keyboard
A developer has showcased a modular keyboard design featuring individual 1u PCBs for every key, connected via pogo pins and magnetic cases. The project utilizes RISC-V microcontrollers and Bluetooth connectivity to allow for fully customizable layouts.
Why it matters
This project represents an innovative approach to hardware design, pushing the boundaries of modular input devices for enthusiasts and engineers.
A truly modular keyboard with rearrangeable keys, magnetic cases and Bluetooth!
Key Features • Video Demo • PCB • Case • Credits • License
keybytes-demo.mp4 Key Features Rearrangeable layout where every key is its own 1u PCB CH32V003 RISC-V microcontroller on every key STM32WB55RGV6 main board with Bluetooth and USB Pogo pins on all 4 sides of every key for power and I2C Magnetic cases to hold the modules together Key programming from the main board over pogo pins 2MB QSPI flash (W25Q16JV) to store the key firmware Battery charging with the BQ25895 and solder pads for a 1S LiPo Buck-Boost converter (TPS631000) RGB status LED USB-C with ESD protection Ceramic Bluetooth antenna PCB Designed in KiCad! There are two boards, the Keybit and the Keyword, and both are 1u (19.05mm x 19.05mm).
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