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How long does the battery last? I'd like a camera at our summer cottage to take a timelapse during the whole winter (in Finland, so snowy), turn itself on each
by nixarn 10y ago
How long does the battery last? I'd like a camera at our summer cottage to take a timelapse during the whole winter (in Finland, so snowy), turn itself on each day, take a pic, shut down, repeat for like 6months, not sure it's possible?
- bschwindHN 10y agoOh sorry, I guess it's not exactly the "same thing", mine's plugged into a socket :P
- icebraining 10y agoOn my home server/NAS, I use rtcwake to sleep the computer for a few hours, then wake up, check if there's work to do, then sleep again. I'm not sure if it'd work with a Pi, though, since its hardware is different from a typical motherboard. Alternatively, you could use something like an Arduino, and connect it in some way to an independent camera. Since it doesn't need to process the picture, you don't need a powerful processor or MBs of RAM.
- makomk 10y agoThe Raspberry Pi doesn't support power management of any kind. It simply can't go into suspend or soft power-off because it doesn't have the hardware to do it. In theory the C.H.I.P can but I'm not sure if the software support for that feature is there yet.
- geerlingguy 10y agoCheck out the Sleepy Pi HAT. It's possible, though more complicated than it would be on a computer with power management options or on an Arduino.
- geerlingguy 10y agoSomething like that is possible, but you'd have to probably build your own battery and power circuitry; most USB power packs shut off after a few minutes without any current draw, and you need to press a physical button to turn them back on. The AUKEY supply I'm using goes for about 6 days, continuous. You can also have two packs and judiciously swap them out every week or so. That's my plan for a video I want to record later this year.
- deleted 10y ago[deleted]
- durkie 10y agoI have a similar project for monitoring fruit trees. We use a SleepyPi add on to our pi zero (basically an Arduino with a rtc module) in order to shut down the pi zero during the downtime and save battery. Should be able to run for several months this way.
- geerlingguy 10y agoNeat! What kind of battery are you using with it?
- durkie 10y agoUnfortunately the sleepy pi only accepts voltages greater than 6V I believe so we're using 6 eneloop AA batteries in series.
- deleted 10y ago[deleted]