Backward driving on startup

Posted by Arthur Guy on May 11, 2013 at 4:15pm

Hi all,

I hooked up my robotic platform to an apm running ardurover today and at power on it drives backward at full speed.

The platform uses skid steering and I am not using an rc controller so its either the apm seeing the low rc inputs thats doing it or during initialisation it starts with low outputs, I believe the latter.

Does anyone know how to solve this?

Thanks

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Replies

  • John Hestness May 11, 2013 at 9:27pm
    I power up the APM first, wait for it to inialize, then power the drive system. I believe you are right, all outputs start out low. For a forward only ESC that is stopped, but for a bidirectional ESC that is full reverse.
  • Randy Brazeau May 11, 2013 at 4:46pm
    If you bench test it, what do you see for throttle? High PWM?
    Motors direction correct? Sounds like the motors are backwards, should be going full speed forward?

    Randy
This reply was deleted.