KiCad boards from 2 GitHub repositories tagged “marine-electronics”, the most starred first; open any of them in PCBKit.
bigbrainlabs/BoatOpenIO
Universal 16-channel analog marine gateway for boats with legacy VDO sensors. Connects analog instruments to MQTT and Signal K without sensor replacement. ESP32-based, open source, modular mini-board system.
k3ldar/PowerControlHub
PowerControlHub is a flexible automation controller for 12V systems. It combines relay switching, sensor monitoring, and smart‑home connectivity (MQTT, Home Assistant, REST, BLE) into one device.
bigbrainlabs/BoatOpenIO
Universal 16-channel analog marine gateway for boats with legacy VDO sensors. Connects analog instruments to MQTT and Signal K without sensor replacement. ESP32-based, open source, modular mini-board system.
bigbrainlabs/BoatOpenIO
Universal 16-channel analog marine gateway for boats with legacy VDO sensors. Connects analog instruments to MQTT and Signal K without sensor replacement. ESP32-based, open source, modular mini-board system.
bigbrainlabs/BoatOpenIO
Universal 16-channel analog marine gateway for boats with legacy VDO sensors. Connects analog instruments to MQTT and Signal K without sensor replacement. ESP32-based, open source, modular mini-board system.
bigbrainlabs/BoatOpenIO
Universal 16-channel analog marine gateway for boats with legacy VDO sensors. Connects analog instruments to MQTT and Signal K without sensor replacement. ESP32-based, open source, modular mini-board system.
bigbrainlabs/BoatOpenIO
Universal 16-channel analog marine gateway for boats with legacy VDO sensors. Connects analog instruments to MQTT and Signal K without sensor replacement. ESP32-based, open source, modular mini-board system.
bigbrainlabs/BoatOpenIO
Universal 16-channel analog marine gateway for boats with legacy VDO sensors. Connects analog instruments to MQTT and Signal K without sensor replacement. ESP32-based, open source, modular mini-board system.