@gohan How do I do that? I tried reversing the:
#define RELAY_ON 0 // GPIO value to write to turn on attached relay
#define RELAY_OFF 1 // GPIO value to write to turn off attached relay
I switched around the 0 and 1 but no real change...
Did you get a debug log where you actually see the node receiving the message to change the relay status? Because setting the defines as you said should be correct