On 12/25/06, Paul Hadley <[EMAIL PROTECTED]> wrote:
After a lot of failures and messing around, it did finally respond with a
presence pulse, temperature reading and a valid CRC. Warming the sensor with
my fingers showed the temp climb up a few degrees, then down again when
released. Wonderful I thought, until............. after possibly touching
the 1-Wire it suddenly stopped working permanently (no presence pulse).
Paul
Sounds unrelated to OWFS.
My experience is that the DS18x20 are quite robust. I've handled, dropped,
stepped on them without problems. There is an issue with negative voltages
on the data line, and the recommendation is to use a diode to protect them.
How to test? Ask for some more samples from Dallas, or try in another
system, like what you propose. If more than one failed at the same time, I'd
also be suspicious of the rest of your circuit or software.
Paul Alfille
-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys - and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
_______________________________________________
Owfs-developers mailing list
Owfs-developers@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/owfs-developers
