I've started work on supporting the DS1821 Thermostat. It's a difficult chip, only partly a 1-wire device. It has no unique address, and can't respond independently, nor can it announce itself on a device discovery (directory listing).
Basically, the DS1821 should be on it's own 1-wire bus according to the datasheet. We handle it thus: address is "thermostat" So "cat /mnt/1wire/thermostat/temperature" would read the temperature, but "ls /mnt/1wire" would NOT include thermostat among the devices. There will be properties: temperature temphigh templow polarity 1shot thermostat_mode The last property is a little problematic. It is NOT POSSIBLE to leave thermostat mode without electrical manipulation outside of the 1-wire protocol. So the thermostat is a little blind. OWFS will be useful for programming the thermostat and setting it going. Special handling will be needed after that. Paul ------------------------------------------------------- This SF.Net email is sponsored by the JBoss Inc. Get Certified Today Register for a JBoss Training Course. Free Certification Exam for All Training Attendees Through End of 2005. For more info visit: http://ads.osdn.com/?ad_id=7628&alloc_id=16845&op=click _______________________________________________ Owfs-developers mailing list Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers
