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  1. #1

    Join Date
    Oct 2020

    Relay on MK3/4DRV


    Is it possible to directly connect an 5V relay (70mA) to output 1,2 or 6?
    - Is the board capable of supplying the needed current?
    - Do I need to protect the output? (Fly-Back diode?)


  2. #2
    Join Date
    Feb 2011

    Re: Relay on MK3/4DRV

    I think taking an arduino single relay board with opto is good solution, there is separate power supply for it, no harm to MB

  3. #3
    Join Date
    Mar 2017

    Re: Relay on MK3/4DRV

    Controller is not capable of driving relays directly.

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