WB update: 1V output

[Carl Ijames]

At 08:03 PM 3/29/01 +0000, you wrote:
>Another thing anybody working on the WB driver might consider in addition 
>to a 0-1v output is a 0-4 volt output for easy interfacing to an ADC 
>without the need for an op-amp.

I just got a DI194 from www.dataq.com :  4 channels of 8 bit A/D, plus 2 
digital outs and 1 digital in, that connects to a serial port, with their 
windaq acquisition software and lots of other goodies on CDROM, all for the 
huge price of $15 (okay, I got 2 for $30 + about $9 s&h)!  I've played with 
it on my desktop but haven't cobbled together a system for the laptop 
yet.  It has +/- 10 V inputs, so that may be another nice output range to 
add to egor (requiring a - supply, of course, but you may even be able to 
tap off the di194 (which gets it from the serial port) for that since 
current draw should be minimal).  How about logging O2, tps, and maybe rpm 
with a tach f-to-v circuit, plus a manual switch input if you want 
markers?  They also have the same thing in 12 bit for $99, and both can do 
240 conversions/sec so 240 Hz one channel or 60 Hz per channel on all four 
channels.


Regards,
Carl Ijames     ijames at netaxs.com

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