2 layers125 × 72 mm

Simut PCB
angeloINTJ/simut
Sistema Integrado de Monitoramento Universal e Telemetria: open-source firmware for the Raspberry Pi Pico W and Pico 2 W.
27 parts7MIT
KiCad boards from 2 GitHub repositories tagged “ota-updates”, the most starred first; open any of them in PCBKit.

angeloINTJ/simut
Sistema Integrado de Monitoramento Universal e Telemetria: open-source firmware for the Raspberry Pi Pico W and Pico 2 W.

TTeuber/AirMidi
Wireless MIDI interface firmware for ESP32-C6/S3: TRS MIDI to BLE MIDI, Network MIDI 2.0, RTP-MIDI, USB MIDI and ESP-NOW. MIDI-CI builds the web UI's controls from the synth; signed OTA updates with rollback.