Hi @ferpando and @tjay4x4. Thanks too for the Irrigation Controller (I'll use later) I've tried to adapt 16 relay with arduino to mysensors 2.0 using this manual . I'm not able to fully convert, hence the way how received messages from controller changed. Did someone from you already adapt the sketch to fit 2.0?

In any case, I think it would be a good idea to create a sample sketch / manual to simply handle 8+ relays driven by the shift register SN74HC595.

Thanks in advanced,
Sebastian