Subject:
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legOS ....
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Newsgroups:
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lugnet.robotics
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Date:
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Sun, 23 Dec 2001 15:41:56 GMT
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Original-From:
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"nanobapt" <nanobapt@nordnet.fr>
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Viewed:
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625 times
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i try to learn legOS and now i try to understand mutitask
but the problem is that legOS don't want to compile my program cause he
don't know button_state ....
----- Original Message -----
From: "mike mcfarlane" <mcfarlane_mike@hotmail.com>
To: <lego-robotics@crynwr.com>
Sent: Saturday, December 22, 2001 4:47 PM
Subject: Noisy sound sensor ;-?
> Hi
> I have built the sound sensor in the Extreme Mindstorms book, and the • basic
> operation appears to work fine. However when I have tried to use it in a
> full program which starts motors at the start of the program, the input is
> behaving as if it has been triggered. Also, if I shock load the motor
> (quietly) then the sensor will also trigger. At first I thought the sensor
> was maybe picking up the acoustic noise of the motors starting up, but
> having covered the sensor with a pillow ;-) and still having the sensor
> trigger, then I think it must be picking up electrical noise somewhere. I
> have tried ensuring the the lead from sensor to RCX is not near the motor
> leads, that the sensor is not near anything and shielding the whole • assembly
> and lead with tin foil. I would try a ferrite ring, but don't have one • handy
> at present.
> Can anyone shed any light on my problem or had similar problems with the
> sound sensor triggering unexpectedly?
> Cheers and Merry Christmas all
> Mike McFarlane
>
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Message is in Reply To:
 | | Noisy sound sensor ;-?
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| Hi I have built the sound sensor in the Extreme Mindstorms book, and the basic operation appears to work fine. However when I have tried to use it in a full program which starts motors at the start of the program, the input is behaving as if it has (...) (23 years ago, 22-Dec-01, to lugnet.robotics)
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