Hi, my module works with 8 relays but when i try to expand to 16 relays i have an issue. The 2nd register heats up and the pro mini keep restarting / re-initializing. I think i have the wrong connections for the 2nd register. Can anyone help / share what the wiring for the 2nd register should be?

Re: Irrigation Controller (up to 16 valves with Shift Registers)
Hi, my module works with 8 relays but when i try to expand to 16 relays i have an issue. The 2nd register heats up and the pro mini keep restarting / re-initializing. I think i have the wrong connections for the 2nd register. Can anyone help / share what the wiring for the 2nd register should be?

Hi, my module works with 8 relays but when i try to expand to 16 relays i have an issue. The 2nd register heats up and the pro mini keep restarting / re-initializing. I think i have the wrong connections for the 2nd register. Can anyone help / share what the wiring for the 2nd register should be?