Opensprinkler wiring update#

Hold pushbutton B3 while starting the controller, until you see the message Setup Options. However, if you wish, you can change the controller options /settings by following the procedure below: The controller is programmed with a list of options. If you are not sure, ask a landscaper or go to a home improvement store to ask for help. For multiple valves: one wire from each valve is combined together and goes to the COM terminal, and the other wire of each valve goes to its corresponding station terminal. Connect one wire to the COM (Common) terminal (either of the two ports), and the other wire to an individual station terminal (S1-S8). The LCD should turn on and start displaying messages.Ī sprinkler valve has two wires. This can help prevent mistakes in plugging in power.Īfter connecting the power supply, slide down the power switch. Update: from version 2.1, the 24VAC terminal has been changed to an orange-colored one with a different pin spacing.Also, to reduce the chance of damage due to power surge, please use a surge protector. We recommend using a permanent marker to mark the screw terminal pieces to help you easily identify the two.

Important: DO NOT plug 24VAC into the COM port or the Rain Sensor port! Doing so may damage your transformer or the controller. You can also buy a cheap off-the-shelf sprinkler timer which usually comes with a transformer. Sprinkler transformers can be purchased online (search for sprinkler transformer or 24V AC transformer), or at local home improvement stores. The current rating should be at least 500mA (12VA). Since AC transformers are not regulated, the output may vary anywhere between 22V AC to 29V AC. The controller uses a standard 24∼27V AC (note that the output is AC, not DC) sprinkler transformer. There are also a rain sensor connector and zone expansion connector. Note that the two ports on the COM terminal are internally wired together, so either can be used as the common wire. The 24VAC power jack, switch, and USB connector are on the left side the three push buttons and the Ethernet connector are on the right side the COM (common) terminal and screw terminals for connecting sprinkler wires are on the bottom. The interface of the controller is shown in the pictures below. Known issues and trouble shooting solutions are documented in the F.A.Q.

Opensprinkler wiring update#

To upload a new firmware, refer to the Firmware Update Instructions. The microcontroller (mcu) is flashed with the most recent firmware at the time of shipping.