Relay

[Rob F]

I just refreshed my memory as to why it's reversed and it's been like that from day one when I didn't know what an Arduino was. I got that from a bad example I followed or based on how I wired my power bar and never changed it because I didn't want to mess up everyones system. It wasn't a big deal with those relay modules because they could be wired normally on or normally off. In the end neither setup is better but yes HIGH makes more sense to turn on and what an SSR expects.

If you don't want to mess with components which I understand we can easily add a little code to sort it out. Just need to know which outlet number/s the SSRs are on. For example if outlet 2 is SSR and the others are original we can add.

Code:

if (_outletID[loc] == 1) digitalWrite(_pin[loc], HIGH);
else digitalWrite(_pin[loc], LOW);