OpenSprinkler Firmware 2.2.1(6) and the Official Release of AC-Powered OpenSprinkler v4
Posted in ESP32, MakeBusiness, OpenSprinkler, Product News, Sprinkler Projects on Sep 25th, 2026
About a month ago, we introduced AC-powered OpenSprinkler v4, the first OpenSprinkler built on ESP32, and opened pre-orders with shipments expected in late September. Today I’m happy to announce that OpenSprinkler v4 is officially shipping, and every unit comes with the newly released Firmware 2.2.1(6). This firmware not only supports the new hardware, it also […]
