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Question Potentiometers flickering with FFB on

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by Abhay, Sep 10, 2025 at 07:31.

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  1. Abhay

    Abhay New Member

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    I am building DIY FFB wheel and I have almost completed it.
    the parts:
    MY6812 120W
    BTS7960
    Arduino Leonardo
    12V 15A ATX PSU
    MT6835 magnetic encoder set to 1000 ppr
    and 3 pots for pedals

    I am using rane's Arduino FFB Wheel(ranenbg/Arduino-FFB-wheel)

    when I connect arduino to PC everything works, but as soon as I turn the motor on all 3 pedals start flickering like crazy, almost half range flickering.

    can anyone tell me what the problem is and how can i solve it?
    Abhay, Sep 10, 2025 at 07:31
    #1
  2. Misanthrop

    Misanthrop Active Member

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    My Motion Simulator:
    6DOF
    Classical EMI Issue. Put ferrite magnets on your usb cable and seperate them from all power cables.
    Misanthrop, Sep 10, 2025 at 07:59
    #2
  3. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    Innovative tech specialist for NGOs
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    My Motion Simulator:
    3DOF, DC motor, JRK
    May I suggest the information provided is not enough to inform assistance, for example what code is is being utilized and what has been done to ensure optimal outcomes?
    noorbeast, Sep 10, 2025 at 08:04
    #3
  4. Abhay

    Abhay New Member

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    i am using this firmware: https://github.com/ranenbg/Arduino-FFB-wheel

    I have not yet done anything to mitigate the issue
    Abhay, Sep 10, 2025 at 08:44
    #4
  5. Abhay

    Abhay New Member

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    can I use anything other than ferrite magnet cause its not easily available here?
    Abhay, Sep 10, 2025 at 16:14
    #5