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  1. #1
    This question may be truely stupid but I have to ask.
    What does the resistor do that I have circled in red and is it something I need to add to the circuit?
    I thought you would directly conect the Breakout board to the drive.

    Jim
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  2. #2
    Clive S's Avatar
    Lives in Marple Stockport, United Kingdom. Last Activity: 22 Hours Ago Forum Superstar, has done so much to help others, they deserve a medal. Has been a member for 9-10 years. Has a total post count of 3,333. Received thanks 618 times, giving thanks to others 78 times. Made a monetary donation to the upkeep of the community. Is a beta tester for Machinists Network features.
    Note: When VCC=5V, R=0
    When VCC=12V, R=1K, >1/8W
    When VCC=24V, R=2K,>1/8W
    R must connect in the control signal part .
    When using a BOB from a pp they are 5V output to the driver and therefore R = 0 and not needed if a controler is used that outputs a higher voltage then you have you use a current limiting R in the line...Clive

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