I was finally able to get my grow hat set up after weeks of ludicrous problems and I’ve hit another problem which might make the whole thing a bit useless. Inserted into potting soil that’s almost completely dry they’re registering at between 1-3Hz. That’s the suggested “wet” threshold. Adding water obviously reduces this to under 1Hz but the range between soaking wet and bone dry is so narrow (or non-existent in one of my pots) that it makes the functions useless and I’m not sure I could set up the pumps like that.
Interestingly, I have one plant in coir that registers with more useful values.
Are these moisture sensors not useful in normal soil? Is there anything I can change in the code to help with this? I’m not a complete beginner but scouring the code and figuring out resistance values or whatever is definitely beyond my abilities just now. Any help would be much appreciated!