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
KiCad boards from 1 GitHub repository tagged “vissmann”, the most starred first; open any of them in PCBKit.

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.