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Subject: 
Re: IR devices
Newsgroups: 
lugnet.robotics.handyboard
Date: 
Mon, 10 Nov 1997 18:07:48 GMT
Original-From: 
Darkman <lroska@&SayNoToSpam&cyberus.ca>
Viewed: 
1594 times
  
Hi Jeremy!

I used the shaft encoder out of a track ball for my robotic project(same
thing but a bit bigger).  You do not need the IC out of the mouse just take
the shaft encoder and use it with a IR led and detector pair.  If you are
going to use the digital inputs to count the tics use a smith trigger to
clean up the detector output else use the encoder routine supplied with the
handyboard IC library.  If I recall correctly this routine requires you to
connect the detector to the analog inputs.

I hope this helps.


-----Original Message-----
From: Jeremy Sarao <jeremy@hiresystems.com>
To: <handyboard@media.mit.edu>
Date: Monday, November 10, 1997 10:02 AM
Subject: IR devices


I recently opened up a mouse (the computer kind, not the live kind) and
found what I assume to be 2 IR shaft encoders which it uses to translate
the direction you are moving the mouse.  Is there a way that I could remove
them and turn them into shaft encoders for the handyboard?

I don't want to take the time to describe how they are layed out on the
PCB, but I assume it's pretty standard, so pop open your mouse if you need
the visualization.

Any info about this would be greatly appreciated.

It also had a IC labled: e-cmos ec3568a1 9534.  Do you think I would need
the chip as well?  In other words:  are the ir devices directly related to
the IC?

Thanks!

Jeremy





Message has 1 Reply:
  Re: IR devices
 
The IR led I assume would be the transparent one and the detector would be the black one? There are 2 leads on the transmitter and 3 on the detector, how and where should I connect it to the HB? Any diagrams available? If this works, I have about 10 (...) (27 years ago, 14-Nov-97, to lugnet.robotics.handyboard)

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