Would you be willing to write up a tutorial for how you built this with sonoffs in the Tutorials and Examples section? I’m certain a number of users would find it useful.
Sorry for the late reply Daniel.
You seem to have something similar to my setup, I can share my code, no problem, would be great if it worked for you!
I’m actually using MQTT to communicate the openHAB Raspberry and the relay connected “slave” raspberry’s.
You can check here one example:
https://github.com/marvinroger/homie-esp8266/blob/develop/examples/SonoffDualShutters/SonoffDualShutters.ino