Long time readers of the site know that a while back I had two Dallas Semiconductor DS18S20 sensors connected to one of my Linux boxes. Cron would periodically run digitemp that would walk the 1-Wire bus and grab the temperature in my office and outside. The data was then logged/graphed via Cacti.

Pretty slick system… until the outdoor sensor started throwing errors and eventually died. Then I moved to a new house and never got around to hooking up the sensors again.

Tonight I removed the dead sensor from the bus and hooked the remaining one back up:

metis$ digitemp -i DigiTemp v3.2.0 Copyright 1996-2003 by Brian C. Lane GNU Public License v2.0 - http://www.brianlane.com Turning off all DS2409 Couplers .. Searching the 1-Wire LAN 1014EB2E000800C5 : DS1820 Temperature Sensor ROM #0 : 1014EB2E000800C5 Wrote .digitemprc metis$ digitemp -qa Dec 01 21:58:46 Sensor 0 C: 18.25 F: 64.85
Nice! Looks like at least that one still works. Time to weatherproof another spare sensor and run it outside.

Now I need to look into PySerial.