The control logic is implemented in the IrrigationController class. Because it usually is hard to describe program flow details in text form, I created some flow charts.

Sadly, the reservoir fill level sensor has proven to be unreliable. I was planning to use a voltage measurement over a voltage divider, which is influenced by the number of gold contacts covered in water. It's starting to go crazy when the pump is turned on...

The software is progressing, maybe a little slower than I planned. But that's mainly a problem of finding some free time to work on it. But this weekend I got some time to populate all needed hardware components in the IP67 enclosure!

This post is just a quick status update. It's mostly about the software side, because that's what I have mostly been working on the last weeks. I already mentioned some of the things, but I try to give a full view of the current state this time.

In the last article I talked about my motivation and some thoughts and design goals of the Irrigation Controller. In this article I will talk about bringing up the board for the first time - hardware- and software-wise.

Let's face it: I'm a poor gardener. My main problem: Forgetting to water the plants. I'm thinking about this problem for many years now. Many ideas came to my mind, but I didn't actually start something in this regard. Until now!