Subject:
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Re: Angle Sensor
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Newsgroups:
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lugnet.robotics
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Date:
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Sat, 27 Mar 1999 16:42:52 GMT
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Viewed:
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926 times
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One of the best suggestions (maybe from Ralph Hempel??) that I have seen for
this sensor is to gear it up (down?) to get the desired rotational
resolution.
-Rob Doucette.
Franz-Michael S. Mellbin wrote in message ...
> In lugnet.robotics, lego-robotics@crynwr.com (Michel Verhagen) writes:
> > Can someone tell me how the angle sensor works?
>
> The Lego rotation sensor counts each rotation in 16 steps starting from 1 • (no.
> # 2 to 17 for the first full rotation). If the rotation goes backwards the
> count is negative (no. # 0 to -15 for the first full backward rotation).
>
> The count is cumulative, so that ten full rotations forward add 160, while
> twenty full rotations back subtract 320; so your sensor value here would be • 1 +
> 160 - 320 = -159.
>
> Measured in degrees every 2 steps are a full 45 degrees. My impression is • that
> the sensor is very accurate.
>
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Message has 1 Reply:
 | | RE: Angle Sensor
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| (...) Nope, wasn't me...I'll bet the fancy LEGO milling machine does something like it though... Maybe I should buy a rotation sennsor first :-) Cheers, Ralph Hempel - P.Eng ---...--- Check out pbFORTH for LEGO Mindstorms at: (URL) ---...--- Reply (...) (25 years ago, 27-Mar-99, to lugnet.robotics)
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Message is in Reply To:
| | Re: Angle Sensor
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| (...) The Lego rotation sensor counts each rotation in 16 steps starting from 1 (no. # 2 to 17 for the first full rotation). If the rotation goes backwards the count is negative (no. # 0 to -15 for the first full backward rotation). The count is (...) (25 years ago, 27-Mar-99, to lugnet.robotics)
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