Abstract: Some embodiments provide irrigation controllers, comprising: a transformer configured to step down a voltage producing an AC power signal; a live AC line and an AC common line coupled with the transformer; a plurality of AC switches coupled with the live AC line and configured to selectively pass the AC power signal to one or more valve solenoids such that the one or more valve solenoids are effectively coupled across the live AC line and the AC common line; an impedance element coupled serially on the AC common line with the transformer, wherein the impedance element comprises an inductive reactance and a resistive component, and the impedance element is configured to increase overvoltage protection between the transformer and the plurality of AC switches increasing an effective voltage tolerance to the overvoltage conditions at the AC switches; and a controller configured to selectively control the plurality of AC switches.

Abstract: Some embodiments provide systems for use in controlling irrigation, comprising: an irrigation controller configured to couple with one or more valves at a site and to control activation and deactivation of the one or more valves in accordance with an irrigation schedule stored in the irrigation controller; a wireless adapter directly communicationally coupled through a direct wired connection with the irrigation controller; and a network adapter wirelessly coupled over a point-to-point wireless communication path with the wireless adapter, wherein the network adapter is configured to further couple through a direct wired connection with a local router configured to provide communication over a distributed network to a remote server; wherein the wireless adapter is configured to poll the irrigation controller to acquire and locally store status information; and the wireless adapter is configured to communicate, over the point-to-point wireless channel, the status information to the server.

Abstract: A wireless system is provided for monitoring environmental, soil, or climate conditions and/or controlling irrigation or climate control systems at an agricultural or landscape site. In some embodiments, the wireless system includes at least one wireless nodes for monitoring environmental, soil, or climate conditions and/or for controlling one or more irrigation or climate control systems at the site. The wireless system also includes a server computer system located remotely from the site. The server computer system is coupled to the node/s over a communications network for receiving data from and controlling operation of the node/s. The server computer system is also coupled to a device operated by an end-user over a communications network for transmitting the data to and receiving remote control commands or queries from the end-user.

Abstract: Methods and systems are provided for monitoring and controlling irrigation and climate conditions in landscapes (such as, e.g., municipal parks, gardens, and sports fields) and agricultural environments (such as, e.g., open agricultural fields, greenhouses, and other sites growing crops).

Abstract: Some embodiments provide irrigation controllers comprising: a housing; a control unit including a first microcontroller configured to execute irrigation programs and a first set of code; and a removable plug-in device that removably mates with a portion of the irrigation controller and communicationally couples to the first microcontroller, wherein the plug-in device comprises a memory storing a second set of code to replace at least a portion of the first set of code, wherein the plug-in device is configured to re-flash at least a portion of the first set of code allowing a copy of the second set of code to overwrite at least the portion of the first set of code; wherein the first set of code comprises a bootloader that writes the copy of the second set of code over the first set of code with the exception of the bootloader that is not written over.

Abstract: Some embodiments provide methods and systems of controlling irrigation. Some of these systems comprise: a connector of a controller interface (CI) coupled with an irrigation controller, wherein the connector is configured to receive a valve activation signal activated by the irrigation controller; a user interface of the CI; a processor of the CI configured to obtain valve transceiver (VT) programming with VT programming being received from inputs through the user interface, determine a station identifier, and identify as defined in the VT programming a remote valve associated with the station identifier and controlled by a remote VT; and a wireless transceiver configured to wirelessly transmit a wireless activation signal configured to be wirelessly received by the VT controlling the valve associated by the VT programming with the station identifier such that the VT is configured to control an actuator to actuate the valve.