Optolink

2 boards

KiCad boards from 2 GitHub repositories tagged “optolink”, the most starred first; open any of them in PCBKit.

2 layers142.2 × 52.1 mm
OptolinkDuoBlock
vich-667/OptolinkDuoBlock
This project was created to have local access to the viessmann heating system to monitor and control and have the vitoconnect still working.
35 parts2MIT
2 layers74 × 35.5 mm
Heater controller
Plokkke/viessmann-optolink-esphome
ESPHome / Home Assistant Optolink adapter for Viessmann Vitodens 222-W (Vitotronic 200 HO1B): DIY IR interface on an ESP32-C3, through-hole KiCad PCB with mains supply, 3D-printed enclosure.
10 partsMIT

OptolinkDuoBlock