“Kits are an option. But, not many people would attempt hand assembly and the inevitable handling of returns for failed attempts would certainly kill the fun.” — that’s the unfortunate truth, and is the main reason why we stopped selling OpenSprinkler DIY kit. We’ve come to a point where there were a number of customers who soldered poorly and the circuits didn’t work, and we didn’t want to see them disappointed so we ended up having to fix solder joints for them. It’s one of those things that it’s easy to say, on paper, that we are not responsible for soldering issues, but in practice, customers expect more. So we decided it’s not a sustainable product and discontinued the DIY stuff.