Open-source boards designed in KiCad by ayukmr on GitHub, from 5 repositories. A board’s address here is its repository’s there.
ayukmr/pendant
LED matrix pendant using an ATSAMD21
ayukmr/bme
Surge concussion detector for BME
ayukmr/flinx
BL654-based low-profile 40% keyboard
ayukmr/matrix
Charlieplexed LED matrix using an ESP32
ayukmr/muse
Small device for outputting MIDI