Wish I had seen this earlier this week. I built an OpenSprinkler 1.2u unit years ago and its been in service ever since. I wanted to give the OSPI a shot and found one on EBay with a Pi Zero!
Used Ray’s Pi image from last year and did a sudo apt-get upgrade to get the image to work with the Pi Zero. Works great, although if I didn’t have other Raspberry Pi PCs around the WiFi config would have been much easier with Sakos’ image.
I think I might try this image just for the heck of it.