Hi, I have a 4 channel USB relay module (board V1). I can't locate where to connect the relay coils power supply (+12VDC). I found below ports on the board: - GPIO 0 ~ 3 - ICSP - FWUP - Relay output Can someone please advise me where to input the +12VDC power supply? Thank you very much.
Hi Elisa, The board in the picture is a 4 Channel USB Powered Relay Module. Since the relays are powered from USB power, there is no need for an external +12V supply. Thanks, Tom Numato Lab
Hi, I think I know what went wrong. I got the wrong model from the supplier. I was ordering the 10A rating model (http://numato.com/4-channel-usb-relay-module.html). That's why I am confused.
Thanks Elisa for the update. Kindly contact the supplier and they should be happy to do a replacement. Thanks, Tom Numato Lab
I don't know much about your board but it is looking there in the picture is a 4 Channel USB Powered Relay Module. Actually the relays are powered from USB power, there is no need for an external +12V supply as per my experience. Also i want to know about this board, for what type of applications this is suitable i mean on the basis of voltage and the current withdraw.? prototype pcb assembly
