In message <[email protected]>, Bob Bownes writes:
>Speaking of which, I have some instruments I'd like to usb enable. The >instruments have analog output. Ideally I'd like to use a USB >microcontroller and simply read back the analog value. Once I have the >analog value I can handle it from there. If someone has some >experience doing such, please contact me offline. What kind of precision do you need ? Getting 10 bit of so-so ADC is totally trivial, any Arduino board will do that for you. Browse sparkfun.com a bit, they have tons of weird microcontroller boards, Arduino, ARM, PIC etc, and Getting better resolution means a board with a dedicated ADC chip but that is usually not a big issue either. If you _really_ need precision, check out analog.com for eval boards for their ADCs, some of those have USB ports these days. If you want something more streamlined, there are a lot of ADC+USB gadgets on the market, most of them very overpriced, but with better signal-conditioning than the raw electronics on Arduino and some of them even calibrated to some extent. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 [email protected] | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
