Thank you so much for this detail! You’ve made it sound like a fun (and wonderfully over engineered) solution. I may just give it a go because it sounds like I may learn a lot!

This is a really cool project. I do have a pi zero laying around…

Have you had any issues with this setup? Also was the ir necessary because of the interior of the box?

I think this is exactly what I’m looking for! Have you used these in the past? I like that I can keep the float

I’ve seen a few that screw into the float sensor location. But maybe a DIY would be a good path!

This book is sitting in our office. Is it actually a good read? Its very dusty so I always wrote it off as just another corporate book.