This post is for content relating to it’s operation.
I’ll start with a high level description. It essentially works very similar to other irrigation and deep sleep projects projects around:
- Wake up from deep sleep periodically and see if the plant needs water. If so, water, if not, back to sleep.
- Don’t water the plant if battery is low, instead, go back to sleep for a long time and hope you get recharged on next wake.
- Don’t water the plant if the tank level is low.
- The watering regime might be described as “incremental drip-feed towards an upper target, followed by drying towards a lower threshold”. This lets the plant dry out a bit, then “gives it a good water, but slowly rather than all at once”… I still need to monitor that this is working ok.
- The light sensor is handy for checking how much light both the plant and the solar panel is getting.