gShield enters unusable state when it's powered up after Arduino is ON

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  • April 6, 2015 at 11:53 pm #7600
    ivanwyc
    Member

    Hi,

    Started working on my shapeoko build a few days ago and found one problem: If I power up Arduino first before gShield is up, gShield will enter an unusable state: hum sound is heard (probably from the steppers), steppers won’t move for any gcode. Pressing the reset button will fix it:

    https://www.youtube.com/watch?v=NIEHfKUKWBw

    However if I power up gShield before the Arduino, it works perfectly well. It is something expected? Do you guys have any idea?

    Configuration:

    gShield: v5b
    grbl: v0.9i
    Arduino Uno

    Will be very grateful for any help.

    Thanks,
    -Ivan

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