Just wondering how easy it would be to create feedback from relay board, to confirm Relay’s 1 though 4 are active. Using the Tinker App, i would like to see D4,5,6 and 7 as inputs, from D0,1,2 and 3. That way Tinker could confirm. Is it possible to just connect D0 to D4, D1 to D5, D2 to D6 and D3 to D7, with just jumpers. I dont want to blow up my Brand New Core.
Any thoughts appreciated.