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Subject: 
Re: WTB Rotation sensor
Newsgroups: 
lugnet.robotics
Date: 
Wed, 21 Apr 1999 09:29:48 GMT
Original-From: 
Laurentino Martins <LMARTINS@nospamMARKTEST.PT>
Viewed: 
971 times
  
At 20:57 20-04-1999 Tuesday , you wrote:
In lugnet.robotics, Nick Goetz writes:
Where can I find a rotation sensor? I saw it in the Dacta catalog but it
seems really expensive.

Yeah, I think they are WAY too expensive too.  Try this though, use a
touch switch, about $10 most places, and one of the larger pulley wheels
with the 6 (I think) holes in it.  Place the pulley on a shaft that the
wheel turns such that the switch is not triggered when the hole passes
over.  Then you can attach a counter to that button and count the ticks
you get to determine position or RPM rate.  This should be do-able in
"not too large" of a Rube Goldberg space...


This is not necessary.
There are several ways of setting up a touch sensor (we generally use the boolean mode) and one of them auto-increments the touch sensor readings at each press and/or unpress.
Sorry but I don't have the documentation handy :-(



Laurentino Martins

[mailto:lau@mail.telepac.pt]
[http://www.terravista.pt/Enseada/2808/]

--
Did you check the web site first?: http://www.crynwr.com/lego-robotics



Message is in Reply To:
  WTB Rotation sensor
 
Where can I find a rotation sensor? I saw it in the Dacta catalog but it seems really expensive. -Nick (25 years ago, 20-Apr-99, to lugnet.robotics)

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