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#1
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Twitching Robot
When we turn on our robot starts to twitch. The trim is set correctly and the speed controls are calibrated so I'm guessing its programming related. Any Help?
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#2
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Re: Twitching Robot
Could you elaborate on what you mean by "twitch"?
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#3
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Re: Twitching Robot
It sounds like you have too much traction on your wheels. As you turn, your robots wheels must move sideways, and if there is too much traction on your wheels, your robot must fight against this traction, resulting in either the robot appearing to turn in "jumps" or to trip your circuit breakers, either of which could be described as "twitching".
What is your driveline like (number of wheels, dimensions, wheel sizes, wheel material/type, motors, etc)? |
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#4
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Re: Twitching Robot
or are you perhaps talking about a sudden jolt of motor movement as soon as the robot is turned on? we had a similar problem last year and were unable to find a solution.
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#5
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Re: Twitching Robot
Does the "twitch" cut in and out? If it does, is there a clicking noise when it cuts out? This would indicate what ahecht said, that breakers are cutting in and out.
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#6
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Re: Twitching Robot
I believe the motor jolt was corrected with a RC firmware update midseason. We updated to the newest firmware, and that cleared our issue up, if I remember correctly.
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#7
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Re: Twitching Robot
Too much caffine. Cut down on the robots intake of coffea.
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#8
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Re: Twitching Robot
just give up its way easyer that way but seriously we had the problem of our robot jumping because our wheels were to wide that might be your problem
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#9
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Re: Twitching Robot
make sure all the variables you use for motor control are initialized before the main loop runs.
at powerup all variables have random numbers - so if you created an equation like: motorPWM = joystick Y + offset and offset is not set to a defined number until the loop runs once, then motorPWM can be anything from 0 to 255 on the first pass through the codes main loop. |
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