Tim,

Doh.....
Thanks for that. It's always the simple ideas that are the best.
I'll give it a try.

Cheers,
Joe.


-----Original Message-----
From: Tim ODriscoll [mailto:tim@STOKEPOGESWAY.NET]
Sent: 16 September 2003 12:11
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [EE]: Generating logic levels from +v and -v


On Tue, 16 Sep 2003, Joe Farr wrote:
> I have an output from a custom designed and built rotation sensors
(not
> my design) that generates either +2v (rotating left), floating (no
> rotation) or -2v (rotating right). There's no specs for this sensor
but
> a peek under the lid shows that the outputs are from some LM324 quad
> op-amps. Originally, the outputs drove bi-colour LEDs
>
> I need to convert and split this into two TTL compatible logic
signals.
>

How about a couple of opto-isolators hooked up in the same way the LEDs
were?

Tim

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