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+12VDC power supply of 4 channel USB relay module

Discussion in 'Relay Modules' started by Elisa, Nov 2, 2015.

  1. Elisa

    Elisa New Member

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    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. 4ChannelUSBRelayModule.jpg
     
    Last edited: Nov 3, 2015
  2. admin

    admin Administrator Staff Member

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    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
     
  3. Elisa

    Elisa New Member

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    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.
     
  4. admin

    admin Administrator Staff Member

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    Thanks Elisa for the update. Kindly contact the supplier and they should be happy to do a replacement.

    Thanks,
    Tom
    Numato Lab
     
  5. AloinJen

    AloinJen New Member

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    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
     
    Last edited: Nov 19, 2015

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