On Tuesday, April 19, 2016 at 9:30:07 PM UTC+12, mwall wrote:
>
> On Tuesday, April 19, 2016 at 5:13:01 AM UTC-4, Petter Tilljander wrote:
>>
>> Harddrive soon to collapse? Battery in weatherstation is close to be
>> empty? (the display is working and shows outside sensors etc)
>>
>> Please let me know where I should start looking for errors. Thank you
>> all in advance!
>>
>
> you could try disconnecting the usb cable from the station, wait for a
> minute, then plug it back in. this will reset the usb. no need to restart
> weewx. if weewx still cannot communicate then you are probably
> experiencing a fine offset usb lockup:
>
> https://github.com/weewx/weewx/wiki/FineOffset%20USB%20lockup
>
Another - somewhat more brutal - approach on a Raspberry Pi
I built a watchdog timer for the Pi power (basically a 555 bistable with a
short-me-out transistor that gets kicked every so often by a GPIO on the
Pi. Can provide the circuit and Gerber files for a PCB to anyone that is
interested. The watchdog period is about 5-10 minutes which gives the
system time to boot up.
The I wrote a shell script - fired up at boot - that does something like
while True
tail /var/log/syslog > logf
read-the-log.py which looks for the "I have gone" message
if it finds it then execute os.system ('sudo shutdown -h now')
this shuts the pi down in a tidy way and a few
minutes later the watchdog cycles the power.
No worries about interrupting anything like SD card writes or
whatever
sleep 120 seconds
>
>
> m
>
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