2 layers49.5 × 40.5 mm

Hcv
chrkir/hcv
Local Viessmann E3 CAN-bus to MQTT bridge for Vitocal heat pumps. Features Home Assistant Auto-Discovery, ESP32 firmware, and Open Hardware.
32 parts9
KiCad boards from 1 GitHub repository tagged “iobroker”, the most starred first; open any of them in PCBKit.

chrkir/hcv
Local Viessmann E3 CAN-bus to MQTT bridge for Vitocal heat pumps. Features Home Assistant Auto-Discovery, ESP32 firmware, and Open Hardware.