![]() The built in WiFi on RPi would not work even half of the required distance and was simply horrendous. ![]() Assembling the OSPi was also not problematic, other than drilling some holes into the supplied enclosure for the USB cable and WiFi adapter. Installing raspbian and OSPi firmware was easy with no problems encountered. I ended up using the official RPi charger and the 24VAC charger at the same time. This was confirmed while testing where I saw dmesg errors about voltage not being sufficient and RPi rebooting endlessly. It is mentioned in OpenSprinkler documentation that a separate power supply for RPi is recommended. OpenSprinkler offers fully assembled systems but I decided to go the DYI route using my own RPi and just buying the OSPi hat.įinding a 24VAC power supply with EU plug was quite a challenge, the listed model from Orbit was one of the rare ones I could find online (on Amazon). Pump that drives the water must be turned on automatically with each zone valve.Each zone must be turned on separately due to the pressure requirement for the sprinklers to work.Three separate zones around the house, max 7 sprinklers per zone.In the end, programming the sequences myself and trying to make a decent UI would be just too much work for a small pet project so I went with a ready solution. OpenSprinkler seemed to have everything I needed, a RPi hat with all the correct electrical outputs and an open source firmware and android app I could modify myself if needed. ![]() ![]() I was also not quite ready diving deep into embedded programming and OpenHAB programming model. The initial plan was to go with plain RPi, OpenHAB and some GPIO code driving the sprinkler valves but the problem was creating a useful UI to control the system since OpenHAB is too clunky and generic looking. I wanted to automate the watering system at home preferably using open-source and DIY systems. ![]()
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