Hi Jim, Thanks for the thought. I forgot about my Dataq DI-720 which can do 14-bit ADC. However, I'll need to spend more time looking at their acquisition software.
I haven't seen a way to have WinDaq/Pro output an ASCII log file, though the software sheet talks about streaming disk files, it appears to be their proprietary format. BTW, I have an open-source program called wdq2wav to convert WinDaq files to .wav files @ http://wdq2wav.b9.com/ I haven't found a simple C API for the unit to allow me to write my own logging program for the DI-720. But, you have a good idea. I should give Dataq a call and find out what options I have for simple, continuous ASCII logging output. Kevin On Oct 4, 2011, at 9:40 AM, Jim Lux wrote: > On 10/4/11 8:03 AM, Kevin Rosenberg wrote: > >> So, if you know of any simple ADC to UART firmwares available, that'd >> be great so he can just reference someone else's code. The picPET >> is a perfect device at the perfect time. But, we can't rely on tvb >> to come up with a 'picADC' at a similarly serendipitous time. >> > > DATAQ > > http://www.dataq.com/products/startkit/di145.html > > $29, 4 channel 10 bit ADC with USB interface > > You'll need to cobble up a sensor, of course, and I don't know if the > resolution of the di145 is good enough (20mV/LSB as I recall) for a LM335 > (10mV/Kelvin?). One thing you get with cheap is a +/- 10V full scale range. > > A thermistor and resistor into the DATAQ might work better. > > Maxim/Dallas One-Wire devices are another possibility There's tons of PIC > code out there to interface to them. The sensors are cheap (few bucks, > depending on whether you buy raw device, or you get one potted with a cable) > Sparkfun.com has them, among other places. > > > There's also a whole raft of USB temperature loggers out there from Onset > (HOBO) or DataQ or a variety of other companies. They tend to run in the $80 > range (if someone knows about a battery powered temperature logger in the > under $25 range, I'd love to hear about it) > > And, of course, a DMM with a RS-232 interface is another possibility > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
