Subject:
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Re: Control lego motors and rotation sensors
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 25 Apr 2002 15:45:51 GMT
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Viewed:
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501 times
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In lugnet.robotics, Nelson Gonçalves writes:
> 1) Can you have diferent tension levels aplied to a lego motor, for speed
> control purposes ? Or, one can only make it turn at a constant speed.
You can set a power level, but it doesn't seem very effective at controlling
speed.
> 2) Are there more precise rotation sensors than the ones that came with lego
> mindstorms (only 16 ticks per revolution) ?
Usually you just gear it up so that it spins faster. If you're gearing down
a motor to drive a wheel or an arm, arrange to put the rotation sensor
earlier in the gear-train. You can do the math to figure out the gear
ratios, or just do like I do and hook it up and read the values on the
display at different positions.
Keep in mind that the rotation sensor skips counts when it's spinning too
fast or too slow.
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Message is in Reply To:
 | | Control lego motors and rotation sensors
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| 1) Can you have diferent tension levels aplied to a lego motor, for speed control purposes ? Or, one can only make it turn at a constant speed. 2) Are there more precise rotation sensors than the ones that came with lego mindstorms (only 16 ticks (...) (22 years ago, 25-Apr-02, to lugnet.robotics)
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