I want to put an untethered RPi in the middle of a field and let it check and log the temperature for a week or more at a time.
If I wanted to run off of a rechargeable battery to wake up every hour, check and log the temp, then go back to sleep, would I be able to keep it running for a few days?
Is it possible to use a combination of a small button cell battery (or similar) to keep it running/ alive while asleep and a larger battery to operate when awake?
- Pi Zero or Pi 2B
- temperature sensor
- some kind of lipoly battery or AA battery pack
If I wanted to add another sensor, like a simple light sensor, would it have a major impact on battery life?