My project looks like it's perfect for the combination of Sainsmart Arduino UNO and the 8-channel 5v Solid State Relay Module. It's a kinetic artwork with eight, AC-powered light circuits.
Two questions:
1) Are these two boards compatible? That is, can the UNO's digital outputs interface directly to the Relay Module's inputs?
2) It looks like the UNO needs a 9v supply and the Relay Module needs a 5V supply. Can these two boards operate correctly with a single DC supply? By some chance, does the UNO board offer a 5V DC output that could power the Relay Module?
