I have a 4 relay board: no. 1 for the pump and no. 2-3-4 for the sprinklers.
if the relay board is low or high logic is sufficient change the digitalwrite LOW or HIGH but the problem is that i have 2 relays always active a few seconds after opensprinkler starts and one relay is intermittent… so i think that if the problem is only the logic of the board i must have all relays ON or all relays OFF, is correct?
So i think that there are some mistakes in my code…
Moreover, before start opensprinkler i see that all 4 relays of the relay board are not activated but the leds are light on (partially) I think that there isn’ta sufficient current in order to activate all relay at the same time…
On the same machine (there is only the raspi OS) with the Rich’s sprinklers_pi i don’t have this issue…