How does the system handle or protect from rain (over watering)?

If Farmbot software takes care of watering what does it do when it rains a lot? Will too much water / rain drown the plants?

I believe there are plans to support some sort of “decision making system”. For instance, if you’d have a weather station and connect it to the system, FarmBot could request advice from it to see if it should water or not. Or perhaps water, but use less or more water than normally configured.

So far, this support is not here yet.

you could use humidity sensor in the farmbot genesis V1.2 kit to “see” if it had rained or not, then your program can decide if you need to water plants or not