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Re: Run Motors at the Same Speed
You can feed each of the speed controllers the same value from a joystick, but the whole chain from the motor to the wheels on the carpet introduces error.
- the speed controllers must be identically calibrated
- the motors will vary within manufacturing tolerances
- the motors may have a design bias to turn better forward than they do backwards
- the gear trains the motors drive will have varying efficencies, binding, grease, tooth engagement, etc.
To match motor speeds in code through the whole chain you would need sensor feedback from something like an encoder or potentiometer.
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"Rationality is our distinguishing characteristic - it's what sets us apart from the beasts." - Aristotle
Last edited by Mark McLeod : 13-02-2016 at 15:09.
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