Re: Server room temperature sensors
http://www.ibuttonlink.com/link45.aspx has rs-232/serial connected 'easy' interface device and sensors just poll serial port for many sensors... Joe S-3 wrote: Can anyone recommend a server room temperature sensor that I can use with openbsd? I want to monitor temperature and humidity. I hope to graph the data from the sensor. The sensor can be connected to my openbsd via usb, serial, or even network. -- View this message in context: http://www.nabble.com/Server-room-temperature-sensors-tp15328515p15769058.html Sent from the openbsd user - misc mailing list archive at Nabble.com.
Re: Server room temperature sensors
Hello, There are some kits (with DB9 connector / RS232) that can follow up to 4 sensors for $ 40-45 / 30 . It 's very fast to built it. You get one mesure per second on the /dev/ttyX And after you can use rrdtool to have nive graphs. Regards. Xavier 2008/2/11, Bill [EMAIL PROTECTED]: On Wed, 6 Feb 2008 23:07:01 -0800 Joe [EMAIL PROTECTED] spake: Can anyone recommend a server room temperature sensor that I can use with openbsd? I want to monitor temperature and humidity. I hope to graph the data from the sensor. The sensor can be connected to my openbsd via usb, serial, or even network. I've used AVTECH in a few of my rooms. I think the cheapest is around $240 maybe... bigger models can handle everything from smoke, to noise, etc... Read them via SNMP tied to nagios. Works good, the basic model comes with a temp sensor in the unit and a 25' (I believe) lead to a remote sensor. I also have some NetBotz, and while expensive are pretty cool - airflow, noise, temp, humidity, door sensor, camera, etc... Nice if your not spending out of pocket eh...
Re: Server room temperature sensors
On Wednesday, 06.02.2008 at 23:07 -0800, Joe wrote: | Can anyone recommend a server room temperature sensor that I can use | with openbsd? | | I want to monitor temperature and humidity. | | I hope to graph the data from the sensor. | | The sensor can be connected to my openbsd via usb, serial, or even | network. http://www.itwatchdogs.com/products_mon.shtml specifically, I have used the WeatherDuck -- best price, hooks directly to your machine via serial, and you can get text-based data straight out of it. All of their other devices have superflourous features, if you ask me, but many like the network-able products and SNMP support. later. ryanc
Re: Server room temperature sensors
Joe wrote: Can anyone recommend a server room temperature sensor that I can use with openbsd? I want to monitor temperature and humidity. I hope to graph the data from the sensor. The sensor can be connected to my openbsd via usb, serial, or even network. I'm pretty happy with my overpriced and expensive Netbotz boxes from APC.. they do everything, and more, including email alarms, http works great from my blackberry. You can snmp query them if you want, or just trust that they'll alert you as appropriate. They don't so much work with OpenBSD as they work on their own and use smtp, http and snmp to talk to the world over Ethernet. However, the cheapest one was around $1500 when I picked them up, so it's by far not the cheapest way to do this. Paul
Re: Server room temperature sensors
On Wed, 6 Feb 2008 23:07:01 -0800 Joe [EMAIL PROTECTED] spake: Can anyone recommend a server room temperature sensor that I can use with openbsd? I want to monitor temperature and humidity. I hope to graph the data from the sensor. The sensor can be connected to my openbsd via usb, serial, or even network. I've used AVTECH in a few of my rooms. I think the cheapest is around $240 maybe... bigger models can handle everything from smoke, to noise, etc... Read them via SNMP tied to nagios. Works good, the basic model comes with a temp sensor in the unit and a 25' (I believe) lead to a remote sensor. I also have some NetBotz, and while expensive are pretty cool - airflow, noise, temp, humidity, door sensor, camera, etc... Nice if your not spending out of pocket eh...
Re: Server room temperature sensors
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Wednesday, 06.02.2008 at 23:07 -0800, Joe wrote: Can anyone recommend a server room temperature sensor that I can use with openbsd? I want to monitor temperature and humidity. I hope to graph the data from the sensor. The sensor can be connected to my openbsd via usb, serial, or even network. Only a partial answer, but I use APC UPSen and they have an inside temperature sensor. If the ventilation around it is fairly good, my tests indicate that its reading fairly accurately reflects the environment. One can monitor the UPS via serial, logging/graphing in whichever way you like: we happen to use munin running on $OTHER_OS. Dave. - -- Dave Ewart [EMAIL PROTECTED], jabber:[EMAIL PROTECTED], freenode:davee All email from me is now digitally signed, http://www.sungate.co.uk/ Fingerprint: AEC5 9360 0A35 7F66 66E9 82E4 9E10 6769 CD28 DA92 iD8DBQFHrcBznhBnac0o2pIRAgVwAJ0dYbHl0eB+nxJYE9Waqb14mvFPMACgklMJ QruWYEryStxcf/S7jB7LFtw= =MdtI -END PGP SIGNATURE-
Re: Server room temperature sensors
* Joe [EMAIL PROTECTED] [080207 02:13]: Can anyone recommend a server room temperature sensor that I can use with openbsd? I want to monitor temperature and humidity. I hope to graph the data from the sensor. The sensor can be connected to my openbsd via usb, serial, or even network. Perhaps: man 4 onewire I'm looking at hanging one of these temp sensors in my freezer and then setting up an alert if the temperature rises too much. Jim
Re: Server room temperature sensors
2008/2/7, Antti Harri [EMAIL PROTECTED]: You mean http://www.networktechinc.com/enviro-mini.html ? Quite pricey stuff. There are some weather stations with a usb interface... Best Martin
Re: Server room temperature sensors
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...
Re: Server room temperature sensors
You mean http://www.networktechinc.com/enviro-mini.html ? Quite pricey stuff. You can find onewire hardware for apx $50 plus apx $10-$20 per sensor. I have one with 8 sensors, paid apx $110 (Swedish reseller) 2 in each rack. -Thomas
Re: Server room temperature sensors
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? -- Antti Harri
Re: Server room temperature sensors
On Thu, Feb 07, 2008 at 04:07:18PM +0200, 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? This may not have the reliablitiy factor you want (but perhaps muliple units could address that), but what about the consumer-grade weather stations that give inside and outside temp and humidity (local base and a remote sensor) and include a computer hookup? I've seen them different places but the one which you may be able to see of what I speak would be in the West Marine catalog (and probably on-line as well). Doug.
Server room temperature sensors
Can anyone recommend a server room temperature sensor that I can use with openbsd? I want to monitor temperature and humidity. I hope to graph the data from the sensor. The sensor can be connected to my openbsd via usb, serial, or even network.
Re: Server room temperature sensors
In the past I've used Enviromux devices, polling them via SNMP with MRTG. http://www.networktechinc.com/enviro-mini.htm Dustin Lundquist Joe wrote: Can anyone recommend a server room temperature sensor that I can use with openbsd? I want to monitor temperature and humidity. I hope to graph the data from the sensor. The sensor can be connected to my openbsd via usb, serial, or even network.
