Subject:
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A neat idea for touch sensors
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 4 Oct 2000 00:51:46 GMT
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Viewed:
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843 times
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Hi everyone,
I was trying to figure out a way to distinguish between two touch sensors on
the same port. I have seen a lot of examples on the Web of sensor multiplexers
using resistors. Being somewhat of a purist, I wanted to do the same thing
with just Lego. Hmmm, as far as I know, lego doesn't make resistors. But, I
realized that lights are really just fancy resistors. So I hooked up a couple
of Lego lights to a touch sensor, and voila, the two touch sensors give
different readings when pressed. I thought some of you might find this useful
or just plain interesting. I tried to include a small DAT file to show exactly
how they are hooked up, but the server said that the robotics newsgroup does
not accept DAT files. So in words, with the touch sensor facing forwards,
stick two lego lamps on top (where the electric contacts are of course!) with
the lights facing out either side of the touch sensor. Then stick the wire on
top of the two lights, with the wire facing back. I hope this makes sense. I
always like pictures better. Anyway, keep on inventing,
Rob
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Message has 3 Replies:
 | | Re: A neat idea for touch sensors
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| Wow what a great idea! thank-you! Why didn't I think of that? I almost got my dad to bring me back a cybermaster from europe to get those resistor touch sensors. Now I'll have to try this first. Phil :-) (...) (24 years ago, 4-Oct-00, to lugnet.robotics)
| | | Re: A neat idea for touch sensors
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| (...) There are the Cybermaster touch sensors with resistors, but that's a rather expensive solution. (...) Your idea is both simple and great and I just wonder why nobody thought of it before. So how to get more lights? I just have one from the (...) (24 years ago, 4-Oct-00, to lugnet.robotics)
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