Hardware#

OpenBikeComputer uses the Nordic nRF54LM20 development kit. It uses a 240 × 320, 64-color Sharp LS021B7DD02 reflective memory LCD.

The board crate defines the pin map, sensor connections, storage transport, build flags, and flash procedure: firmware/obc-fw-nrf54l.

The display protocol defines the panel waveform and the FLPR scan sequence.

The BOM and schematics page provides component specifications, supplier links, cost estimates, CSV files and schematic PDFs for both custom boards.

The hardware/ directory contains KiCad schematics, PCB layouts, footprints, and component models for the custom board. The custom board and enclosure remain in development. The repository does not yet provide a complete production hardware and assembly release.