Servo confusion


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  1. #1
    Join Date
    Mar 2011
    Location
    Los Angeles, California
    Posts
    322

    Default Servo confusion

    First I love my Saleae logic analyzer and just ran into something that I am confused about.
    I was looking at the pulses being sent to a R/C servo both with a "regular" scope and the logic analyzer and they are very different.
    One the scope there is only one square wave of 1.5 ms occurring every 20ms.
    However, the logic analyzer does not show this same pattern!
    The logic analyzer is showing multiple pulses of different widths. (Please see attached)
    Would you have any ideas as to what I am doing wrong?

    Thanks, Ed
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