I put my raspberry pi on a UPS to see if I could get through a year with no data loss. I've had brownouts, blackouts, and USB port hangs, though not very often. Mostly things work ok with my very basic setup: an original Pi and a Fine Offset WH1080. But losing data avoidably is just no good at all.
The Pi lives in the bedroom on top of a chest of drawers, behind a TV. What I didn't think of when adding a UPS was the effect on my other half when the power went off in the middle of the night, which happened last for the the first time in some high winds -- a tree must have fallen on a line somewhere. I waited for moment between disk writes and switched it off, and the infernal beeping stopped. It's a SWEEX UPS, which beeps when there's no mains power, not when its battery is low. This morning, after the power was restored, I unplugged the Pi from the weather console, switched on the UPS, SSHed into the Pi and checked that the time was ok (I don't have an RTC), reconnected the console, and restarted weewx. When I checked later I found that there were no data gaps, not even on Weather Underground. So... my next project will be to silence this UPS. It seems to be a straightforward enough operation: removing a piezo speaker. There are videos on YouTube, e.g. https://www.youtube.com/watch?v=k4wnhudUGd4 Interested to hear of any raspberry pi + UPS stories. I've yet to figure out how it will hold out if the power stays off. Eventually, I'll have it hooked up to a solar cell to recharge the battery -- 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.
