LED Connected to fan output blinks on startup



  • Hi all,

    I have a Duetwifi+Duex2 setup. I've connected a LED strip to fan 4 on the duex. When I turn on the machine the led turns on for a moment and then turns off. Is there a way to stop it from blinking on startup? Why is it happening?

    FIRMWARE_NAME: RepRapFirmware for Duet 2 WiFi/Ethernet FIRMWARE_VERSION: 2.02(RTOS) ELECTRONICS: Duet WiFi 1.02 or later + DueX2 FIRMWARE_DATE: 2018-12-24b1

    Thanks in advance ☺ .


  • administrators

    Added to my list of things to look at. There is already a pulldown resistor on the gate of the fan mosfets on the DueX, so this may just be a feature of the SX1509B chip that drives them.



  • @dc42 Thank you for your reply.


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