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[DPRG] mouse guts

Subject: [DPRG] mouse guts
From: Dan Miner miner at centtech.com
Date: Mon Feb 7 01:18:29 CST 2005

Yes - the 3 leaded package has 2 detectors in it that are
spaced exactly the right amount to get quadrature encoding.

"Use the 'scope, Luke"   - Yoda

				- Dan

> -----Original Message-----
> From: W.E.Cole [mailto:wecole at ev1.net]
> Sent: Sunday, February 06, 2005 11:24 PM
> To: DeltaGraph at aol.com; dprglist at dprg.org
> Subject: Re: [DPRG] mouse guts
> 
> 
> Hmmmm, that makes sense. But I got curious and went into my 
> workroom and
> just tore apart two PS/2 mice... both have two encoders, with 
> one detector
> pair each. But I did notice something... the emitter is a 
> what I expected...
> two leads, but the detector has three leads. Does that mean 
> it's actually
> two dectors in one package?
> 
> ~WEC
> 
> 
> ----- Original Message ----- 
> From: <DeltaGraph at aol.com>
> To: <dprglist at dprg.org>
> Sent: Sunday, February 06, 2005 11:04 PM
> Subject: Re: [DPRG] mouse guts
> 
> 
> > you would need two detectors to know which direction the 
> mouse is moving.
> If
> > only two terminals on detector then maybe a cute trick is 
> being employed..
> > best to ask an Oscilloscope.
> > -Ron
> >
> 
> 
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