Subject:
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Touch sensor problems
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Newsgroups:
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lugnet.robotics
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Date:
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Sun, 5 Oct 2003 21:32:09 GMT
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Original-From:
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Camp0s <camp0s@libero.itSTOPSPAMMERS>
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Viewed:
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1059 times
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Hy to all !
I've a Ris 1.5 since 2000 and everything was going good. Until today.
I was assembling a lego pneumatic switch with a touch sensor to detect the
center position on the switch, but the sensor seems to have lost
sensibility. When i touch it the maximun value i get is more or less 78 (as
reading on the RCX with sensor_type_touch and sensor_mode_percent using
NQC).
With this low value it can't switch to "1" loosing it's functionality.
So, I opened it and i found that it works with a small piece of rubber which
once pressed against 2 small metallic plates it makes the contact. But
somewhere this rubber lost part of it's conductivity.
The question is, what can i do (before buying a new sensor) ?
Thanks to everyone.
--------------------------------------------------------------------
As we enjoy great advantages from inventions of others,we should
be glad of an opportunity to serve others by any invention of ours;
and this we should do freely and generously.
Benjamin
Franklin
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Message has 3 Replies:
 | | Re: Touch sensor problems
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| My first recourse would be to contact LEGO for a replacement part. Mark Near (...) Mark (NOTE NEW PHONE NUMBERS) Mark Harrison Near markn@scoca-k12.org LAN Manager 800.634.8828 x5300 (Toll Free) 740.289.5300 (Desk) 740.352.9141 (Cell) 740.532.7752 (...) (21 years ago, 5-Oct-03, to lugnet.robotics)
| | | Re: Touch sensor problems
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| (...) Try cleaning it with warm water and a mild detergent and then use some sort of rubber/plastic restorer on it. It's probably shrunk somewhat as it's dried out over the years. If that doesn't work then scavenge a membrane keyboard. -- -- God (...) (21 years ago, 5-Oct-03, to lugnet.robotics)
| | | Re: Touch sensor problems
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| (...) Hi Giacomo, Looks like that rubber part has lost its conductivity, simple thing you can try is- stick a samll aluminium piece on it annd reassemble it that would work . Nitin Mindsensors Robotics www.mindsensors.com (21 years ago, 5-Oct-03, to lugnet.robotics)
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