Overview
Hyperboard
Split ergonomic mechanical keyboard. Machined aluminum case, custom PCB, firmware written in Rust from the matrix scan up, all built from scratch. Functional, in daily use.
Overview
Split ergonomic mechanical keyboard. Machined aluminum case, custom PCB, firmware written in Rust from the matrix scan up, all built from scratch. Functional, in daily use.
Specifications
| MCU | RP2040, dual-core Cortex-M0+ (one per half) |
| Program storage | W25Q128JV, 128 Mbit SPI NOR flash |
| Reference clock | 12 MHz crystal (ABM8-272-T3) |
| USB IDs | VID 0x16c0 / PID 0x27dd |
| Language | Rust, no_std, no RTOS |
| Core split | core0: USB/HID; core1: matrix scan, UART, display |
| Layers | 2, momentary switching |
| Build variants | 4, Cargo features: {master,slave} x {left,right} |
| Matrix | 5 rows x 6 columns per half, PIO-scanned |
| Debounce | none, state reflects the last PIO scan |
| Interfaces | 2, Boot (6KRO) + Report (128-bit NKRO) |
| Protocol switch | negotiated via SET_PROTOCOL, tracked per-report |
| Reset interface | vendor class, forces reboot without BOOTSEL |
| LEDs | SK6812SMINI-EA, 29 per side |
| Panel | I²C OLED, per half, address 0x3C |
| Construction | machined aluminum, 3-piece sandwich per half |
| CAD | 6 STEP files (mechanical/) |
Documentation
Status
Functional and in daily use. CAD files, a full BOM, and a build guide have not been published yet.
