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robot won't go forward no matter what — Parallax Forums

robot won't go forward no matter what

iloverobotsiloverobots Posts: 14
edited 2011-09-30 04:01 in Robotics
I am trying to get my boebot to walk forward, yet for some reason it doesn't want to. I tightened the servos just right and he was going forwards at one point, but now he just goes backwards no matter what the pulsout is . I can put for counter 1 to 300 pulsout 13, 850 pulsout 12, 850 or 13,850 12, 650 or 13, 650, 12, 650, or any variant on that. I've tried everything... any ideas? I untightened a servo and now he is working great!

Comments

  • W9GFOW9GFO Posts: 4,010
    edited 2011-09-30 04:01
    What do you mean by "I tightened the servos just right"?

    Did you center the servos? On each servo just above where the wires come out is a small hole. There is a small potentiometer in there which needs to be gently adjusted so that the wheels do not move when the servo is receiving a steady stream of PULSOUTs with the value 750. Like this:

    DO
    PULSOUT 13, 750
    PULSOUT 12, 750
    PAUSE 20
    LOOP
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