Subject:
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Ball-less mice (was :Re: FW: Another DIY sensor)
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 28 Nov 2000 03:15:38 GMT
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Viewed:
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722 times
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The optical mice that do not require a special tablet to operate all use the
same sensor, made by Agilent (formaly HP). It is the HDNS2000.
The spec can be found here:
http://www.semiconductor.agilent.com/cmos/hdns2000.html
Basically, this thing has 2 types of output:
- PS/2 (connects directly to a PC) (used by Microsoft and some Logitech mice)
- Burst quadrature (used by some Logitech mice)
Greetings,
David
PS: I believe that some mice are now down to $20~30.
> That reminds me. A while ago now, someone here suggested trying
> out the guts of one of those ball-less optical mice as the basis for
> a sensor to watch the floor go by under the robot. Did that get
> anywhere? Does anyone even know how those things work? Are
> they still $50?
>
> JB
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Message has 1 Reply:
Message is in Reply To:
 | | FW: Another DIY sensor
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| I was throwing a mouse away the other day and instead took it apart to see what makes it tick, well, it's a perfect rotation sensor. I think it will be almost twice as accurate as the lego rotation sensor, more as this project develops. I think it (...) (24 years ago, 18-Nov-00, to lugnet.robotics)
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