Motors are buzzing

  • Hi ModalAI Team,

    Sorry if this was already answered somewhere. I searched a solution in the forum but couldn't find any topics. So, I wanted to create a new one.

    After working on VOXL m500 for some minutes, all the motors start buzzing like a beacon and rotating back and forth alike step motor. I don't know why this happens and how I can stop this issue.

    Currently, I take off/on the LiPo battery to stop buzzing. or when connected the QCS, I reboot.

    Is the sound telling me something?
    How can I fix that?

    thank you in advance!

  • Dev Team

    Hi @Voxlady ,

    You are talking about the audible beep/sound correct?

    If this is the case, it's a bit of a "feature" with PX4, namely telling you that you have been on battery power for some time and haven't armed yet (at least this is what I think it means).

    If you are doing benchtop development and want to disable the beeping, you can change the SYS_AUTOSTART parameter through QGC to 0. This disables the output (and also the airframe type so you can't fly).

    The beeping sound is actually generated by the motors (which I think is cool, but annoying for sure!)

  • Hi @modaltb ,

    Thank you for your message. Yes, it was the case and I am doing a benchtop development. After changing to 0, they don't beep anymore. So, I can work in peace. :))

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