Re: USB temperature sensors
On 2013-06-19, rafaello konfekte peleekaiskardina...@gmail.com wrote: Hello, Thanks Barry, this was exactly what I was looking for. Been using it now for a couple of days with TEMPer sensor on both 5.3 stable and current by using this patch written by SASANO Takayoshi: http://www2192ue.sakura.ne.jp/~uaa/gomitext/2013/20130331/20130331.diff Any ideas when this could go into source tree? http://marc.info/?l=openbsd-techm=136472023131435w=2 http://marc.info/?l=openbsd-techm=136762807930749w=2 There is a newer version here, http://www.uaa.org.uk/gomitext/2013/20130513/20130513.diff mpi found a few more issues to fix, I have an additional diff to go over the top of the above which fixes some but not all of these: http://junkpile.org/ugold-20130513-patches.diff Though even with the issues it is still more reliable than uthum.
Re: USB temperature sensors
Hello, Thanks Barry, this was exactly what I was looking for. Been using it now for a couple of days with TEMPer sensor on both 5.3 stable and current by using this patch written by SASANO Takayoshi: http://www2192ue.sakura.ne.jp/~uaa/gomitext/2013/20130331/20130331.diff Any ideas when this could go into source tree? http://marc.info/?l=openbsd-techm=136472023131435w=2 http://marc.info/?l=openbsd-techm=136762807930749w=2
Re: USB temperature sensors
On 2013-05-10, Christian Weisgerber na...@mips.inka.de wrote: Stuart Henderson s...@spacehopper.org wrote: TemperNTC (http://www.pcsensor.com/index.php?_a=productproduct_id=7) uses uthum(4) but has a problem where the sensor drops out occasionally; diff I posted to tech@ improves (but doesn't totally fix) this. This seems specific to TemperNTC, I don't have any other uthum(4) devices myself but it seems e.g. TemperHUM is more reliable. My TEMPerHUM also drops out occasionally. As far as the readings are concerned, the temperature it reports is consistently some 1.5 .. 2.0 degC higher than what an alcohol thermometer in the same room shows, i.e., the measurements are reproducible if somewhat miscalibrated. I doubt that the humidity readings are any good, but I haven't checked. I've just got a ugold to play with locally (rather than my other one which is in a remote server room), all three of these are in pretty much the same location next to my laptop: hw.sensors.ugold1.temp0=22.75 degC (inner) hw.sensors.uthum1.temp0=19.00 degC (inner) hw.sensors.uthum1.temp1=22.99 degC (outer/ntc) I don't have an alcohol/Hg thermometer to compare with though. Maybe I'll try the NTC in a cup of iced water to see how that looks (the ugold and uthum's inner sensors are somewhat harder to check in that way :)
Re: USB temperature sensors
Stuart Henderson s...@spacehopper.org wrote: TemperNTC (http://www.pcsensor.com/index.php?_a=productproduct_id=7) uses uthum(4) but has a problem where the sensor drops out occasionally; diff I posted to tech@ improves (but doesn't totally fix) this. This seems specific to TemperNTC, I don't have any other uthum(4) devices myself but it seems e.g. TemperHUM is more reliable. My TEMPerHUM also drops out occasionally. As far as the readings are concerned, the temperature it reports is consistently some 1.5 .. 2.0 degC higher than what an alcohol thermometer in the same room shows, i.e., the measurements are reproducible if somewhat miscalibrated. I doubt that the humidity readings are any good, but I haven't checked. -- Christian naddy Weisgerber na...@mips.inka.de
USB temperature sensors
Hello, Could you share your experience with USB temperature sensors? I'm looking for something cheap for my server room. Only one temperature sensor would be fine, but internal + external temperature sensor and maybe even humidity sensor would be even better. I'm looking for something that is supported by OpenBSD sensors framework as that would be most convenient. Thanks!
Re: USB temperature sensors
I never tryed on OpenBSD but mFi from Ubnt is cheap and the software is compatible with Unix. Michel *De: *rafaello konfekte *Envoyé: *jeudi 9 mai 2013 07 h 30 min 18 s EDT *À: *misc@openbsd.org *Répondre à: *rafaello konfekte *Objet: *USB temperature sensors Hello, Could you share your experience with USB temperature sensors? I'm looking for something cheap for my server room. Only one temperature sensor would be fine, but internal + external temperature sensor and maybe even humidity sensor would be even better. I'm looking for something that is supported by OpenBSD sensors framework as that would be most convenient. Thanks!
Re: USB temperature sensors
On Thu, May 9, 2013 at 4:19 AM, rafaello konfekte peleekaiskardina...@gmail.com wrote: Hello, Could you share your experience with USB temperature sensors? I'm looking for something cheap for my server room. Only one temperature sensor would be fine, but internal + external temperature sensor and maybe even humidity sensor would be even better. I'm looking for something that is supported by OpenBSD sensors framework as that would be most convenient. Thanks! man 4 onewire
Re: USB temperature sensors
If you're willing/able to test some new code, you may be interested in two recent threads on tech@ http://marc.info/?l=openbsd-techm=136472023131435w=2 http://marc.info/?l=openbsd-techm=136762807930749w=2 On Thu, May 9, 2013 at 4:19 AM, rafaello konfekte peleekaiskardina...@gmail.com wrote: Hello, Could you share your experience with USB temperature sensors? I'm looking for something cheap for my server room. Only one temperature sensor would be fine, but internal + external temperature sensor and maybe even humidity sensor would be even better. I'm looking for something that is supported by OpenBSD sensors framework as that would be most convenient. Thanks!
Re: USB temperature sensors
On 2013-05-09, rafaello konfekte peleekaiskardina...@gmail.com wrote: Hello, Could you share your experience with USB temperature sensors? I'm looking for something cheap for my server room. Only one temperature sensor would be fine, but internal + external temperature sensor and maybe even humidity sensor would be even better. I'm looking for something that is supported by OpenBSD sensors framework as that would be most convenient. Thanks! man -k sensor will show you various options. man -k sensor | grep ^u for the directly USB-connected ones. The Toradex uoak* ones are now an open hardware design and Toradex no longer produce them themselves. 1-Wire sensors can also be connected to USB via uow(4), these may be a better bet if you want a larger number of sensors. At the moment most of the ebay vendors that I'm seeing have either ugold(4) or the TemperNTC version of uthum(4) devices. TemperNTC (http://www.pcsensor.com/index.php?_a=productproduct_id=7) uses uthum(4) but has a problem where the sensor drops out occasionally; diff I posted to tech@ improves (but doesn't totally fix) this. This seems specific to TemperNTC, I don't have any other uthum(4) devices myself but it seems e.g. TemperHUM is more reliable. ugold(4) has not been committed yet, see recent tech@ posts. (http://www.pcsensor.com/index.php?_a=productproduct_id=41) There are some possible races in the driver though in practice it seems to work well (better than the above TemperNTC). If you have something running, there are various ways to get graphs etc (snmpd in base exports sensor data; symon is another option), or for simple alerting you can just run sensorsd - I have it log to a separate file in syslog.conf: !sensorsd *.* /var/log/sensors and tell newsyslog to rotate the file without log turned over markers, and to send alerts: /var/log/sensors644 7 *168 ZMB root and uncomment the send log file notifications in root's crontab.
