You beat me to it. :-) I was going to recommend the http://www.dataq.com/products/startkit/di194.htm at $25 US I think they're selling it at cost or below as a way to get people interested in their products. (they give them away for free for kids science fair projects.) It's pretty limited but it may do what you need - 4 analog inputs and 3 digital and sample 240 times per second, serial interface. A few years ago they were selling a slightly different version for like $10 (no housing, supply your own cable) and I picked one up. Surprisingly capable little device, but I never used it on anything significant.

-Denny

> How about... http://www.dataq.com/products/startkit/di148.htm
> 
> No experience at all with these guys - but they may have something suitable.
> 
> -- Mark
> 
> > -----Original Message-----
> > From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu]On Behalf
> > Of Michael Rigby-Jones
> > Sent: Tuesday, October 24, 2006 5:40 AM
> > To: Microcontroller discussion list - Public.
> > Subject: [EE] Cheap and cheerful data aquisition?
> >
> >
> > Does anyone know of a *cheap* data aquisistion unit, either
> > serial or USB with 4 or more (idealy 8) analog inputs?  Doesn't
> > have to be particulary fast or high resoltuion (100ms sampling,
> > 10bit would be fine). Digital inputs/outputs useful but not
> > mandatory.  Don't mind a kit or unhoused PCB etc. as long as
> > there is host sofwtare available.  I know I could knock up
> > something with a PIC etc. but I just don't really have to time to
> > do that right know, though I might have to if I can't find
> > anything suitable.
> >
> > Thanks
> >
> > Mike
> >

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