Some updates about my problem. I have try all the options mentioned above - UPS -Powered USB Hub - change the power supply of the RPI and the weather station but the problem was not solved and the the weewx was still randomly reporting. I suspect a problem link to the weather station itselv and the USB communication with the RPI and weewx.
I gave up the diagnostic and i have now CRON scheduled a hourly reboot to hide the problem. Thanks to all of you for your support. On Wednesday, January 18, 2017 at 1:47:54 PM UTC+7, Marc Aubry wrote: > > Hi, > Thanks to both of you matthew and andrew for your help. > i agree with you about a problem of usb communication between the weather > station and the rpi due to whatever unknown yet factor (probably dirty > power?) > I'll try the following in order to track this problem: > > 1st. i will connect both the rpi and weather station to an ups > 2nd (if problem remain) i'll connect a powered usb hub in between the rpi > and the weather station even if using a 4 ports usb powered hub to connect > only one low power usb device is little bit over rated. > 3rd if problem still remain i will do an automatic reboot if the weewx > doesn't store anything in the mysql database for more than 15 minute (3 > data acquisition cycle) either by a bash script or a python script (not > sure yet) > > Unfortunately i do not have any linux computer near by the weather station > console to setup weewx on a different platform. my linux server is located > in an other building to fare away from the weather station sensor to have > enough radio signal for the weather station console > > About my experience with UPS. when connecting on the power line UPS does > not really clean the power and when working off line have a tendency to add > more noise than the powered line. I experienced that as musician doing > audio recording in dirty environment. it's depend of course of the quality > of the UPS but i'm using a rpi3 and a cheap weather station to keep the > cost of the installation low it will not make any sens to have an expensive > UPS on this setup. > > Thanks again for all the help you already have provided > > Marc > > > > On Wednesday, January 18, 2017 at 11:53:17 AM UTC+7, mwall wrote: >> >> marc, >> >> the old fine offset stations are very sensitive to usb voltage, whether >> or not the station is powered by the usb. perhaps the wh23xx consoles are >> sensitive as well. in my short (1 year) experience with the wh23xx >> hardware, i find it to be considerably more robust than the 1080/2080 fine >> offset consoles. the only time i have seen the wh23xx lock up is when i >> was doing nasty things to it over usb - never when it was just running >> along normally. >> >> my guess is that you have dirty power. >> >> most important: put the weather station, usb hub, and pi on a ups. >> >> if you still have failures, then check the hardware (always running on a >> ups): >> >> try connecting the station directly to the pi instead of via a hub. >> >> try using a different usb hub. >> >> try using the weather station with some other computer (not a pi). >> >> m >> > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
