OpenSprinkler › Forums › Hardware Questions › OpenSprinkler › Voltage but no current › Reply To: Voltage but no current May 21, 2017 at 3:59 pm #46368 RayKeymaster Alexjensentx: please send a support ticket about the issue. OpenSprinkler 3.0 uses exactly the same driver circuit as previous versions. The only change is the microcontroller (from ATmega1284 to ESP8266) and the size of the controller.
