On 2008/02/07 16:07, Antti Harri wrote: > On Wed, 6 Feb 2008, Dustin Lundquist wrote: > >> In the past I've used Enviromux devices, polling them via SNMP with MRTG. >> http://www.networktechinc.com/enviro-mini.htm > > You mean http://www.networktechinc.com/enviro-mini.html ? Quite > pricey stuff. > > I have a simple temperature sensor connected to chip > with few components in it. That connects to serial > port and I'm reading values using misc/digitemp. > > I'm unable to find the original schematic, but here's > similar: http://pertti.husu.org/index.php?sivu=dallas (in Finnish) > > Anyone have similar setups for getting humidity values?
you could adapt the owsbm(4) driver for the SB2438 smart battery monitor to support the circuit here: http://www.sensorsmag.com/articles/0800/62/ there are a bunch of SNMP-readable devices (netbotz and so on), but the ones I looked at were damned expensive, even on ebay, and probably aren't any more than you can do with a soekris/pcengines board (with it's convenient onboard GPIO) & onewire. http://www.snmplink.org/snmpappliance/hardware/ hardware sold to the home PC-based weather station market is quite a bit cheaper than hardware sold into the datacentre market...
