Thank you. Do you think I should use the same 12v power supply to power both the pool buster and the relay switch? Or do you think it's ok to use the 12v power supply to power the AC adapter and a 5v micro USB cable to power the wifi relay switch?Ok, I just read their manual.
You will need a power supply. The cheapest and probably easiest to get is a 12V DC. It says it will use both AC or DC. The yellow and green go to the pump.
Then connect the power supply to the two terminals for the power supply.
Then wire the comm port to the comm on the relays.
The wire the NO on the relays to each relay position.
Voila should be that easy. However, I have never used that item, but that is what the manual says to do.