Abstract: A decoder for a two-wire irrigation system is disclosed, having the ability to be remotely updated with new firmware over the two-wire network, the ability to download irrigation commands that can be executed at a later time, the ability to adjust its data speed when data corruption is encountered, and the ability to sense the position of an attached solenoid plunger.

Abstract: A decoder for a two-wire irrigation system is disclosed, having the ability to be remotely updated with new firmware over the two-wire network, the ability to download irrigation commands that can be executed at a later time, the ability to adjust its data speed when data corruption is encountered, and the ability to sense the position of an attached solenoid plunger.

Abstract: The present invention is directed to an irrigation sprinkler sensor for sensing if a sprinkler riser has elevated, if water is flowing through the sprinkler riser, if the sprinkler is rotating, or if a sprinkler valve has properly closed.

Abstract: The present invention is directed to an irrigation sprinkler sensor for sensing if a sprinkler riser has elevated, if water is flowing through the sprinkler riser, if the sprinkler is rotating, or if a sprinkler valve has properly closed.

Abstract: A two-wire power and communication system is provided, having a decoder that draws a constant amount of current for communication signals despite changes in the voltage on the power and communication wires. In one example, decoders have a constant current sink circuit that includes a shunt regulator that controls a field effect transistor.

Abstract: The present invention is directed to an irrigation sprinkler sensor for sensing if a sprinkler riser has elevated, if water is flowing through the sprinkler riser, if the sprinkler is rotating, or if a sprinkler valve has properly closed.

Abstract: A control system for a two-wire power and communication system is described herein. A gateway connects to an irrigation controller and at least two wires that are further connected to a plurality of decoders. The gateway includes an H-bridge circuit that creates an alternating potential at the same potential or lower than the nearby ground. In this respect, when one of the at least two communication wires are damaged, little or no wire corrosion will occur.

Abstract: A two-wire power and communication system is provided, having a decoder that draws a constant amount of current for communication signals despite changes in the voltage on the power and communication wires. In one example, decoders have a constant current sink circuit that includes a shunt regulator that controls a field effect transistor.

Abstract: A two-wire power and communication system is provided, having a decoder that draws a constant amount of current for communication signals despite changes in the voltage on the power and communication wires. In one example, decoders have a constant current sink circuit that includes a shunt regulator that controls a field effect transistor.

Abstract: A two-wire power and communication system is provided, having a decoder that draws a constant amount of current for communication signals despite changes in the voltage on the power and communication wires. In one example, decoders have a constant current sink circuit that includes a shunt regulator that controls a field effect transistor.

Abstract: A multi-zone landscape irrigation and lighting system includes a personal computer equipped with a detachable wireless remote, and a multi-station controller operating a plurality of irrigation valves and lighting circuits in accordance with schedules wirelessly transmitted to it by the computer through the remote. When detached from the computer, the remote can wirelessly operate selected irrigation or lighting zones manually. The computer has an intuitive graphic user interface capable of using actual zone photographs to identify individual zones in a strip of zone icons. The icon strip is movable past a lens-like window, the zone icon under the lens at a given time determining the zone currently programmable. A residential system can be operated by a contractor from the street, and the system can be programmed by e-mail from the contractor's shop. Fully automatic operation may be derived from data obtained over the Internet.

Abstract: A two-wire power and communication system is provided, having a decoder that draws a constant amount of current for communication signals despite changes in the voltage on the power and communication wires. In one example, decoders have a constant current sink circuit that includes a shunt regulator that controls a field effect transistor.

Abstract: A multi-zone landscape irrigation and lighting system includes a personal computer equipped with a detachable wireless remote, and a multi-station controller operating a plurality of irrigation valves and lighting circuits in accordance with schedules wirelessly transmitted to it by the computer through the remote. When detached from the computer, the remote can wirelessly operate selected irrigation or lighting zones manually. The computer has an intuitive graphic user interface capable of using actual zone photographs to identify individual zones in a strip of zone icons. The icon strip is movable past a lens-like window, the zone icon under the lens at a given time determining the zone currently programmable. A residential system can be operated by a contractor from the street, and the system can be programmed by e-mail from the contractor's shop. Fully automatic operation may be derived from data obtained over the Internet.

Abstract: The present invention is directed to an irrigation sprinkler sensor for sensing if a sprinkler riser has elevated, if water is flowing through the sprinkler riser, if the sprinkler is rotating, or if a sprinkler valve has properly closed.

Abstract: A control system for a two-wire power and communication system is described herein. A gateway connects to an irrigation controller and at least two wires that are further connected to a plurality of decoders. The gateway includes an H-bridge circuit that creates an alternating potential at the same potential or lower than the nearby ground. In this respect, when one of the at least two communication wires are damaged, little or no wire corrosion will occur.

Abstract: A two-wire power and communication system is provided, having a decoder that draws a constant amount of current for communication signals despite changes in the voltage on the power and communication wires. In one example, decoders have a constant current sink circuit that includes a shunt regulator that controls a field effect transistor.

Abstract: A multi-zone landscape irrigation and lighting system includes a personal computer equipped with a detachable wireless remote, and a multi-station controller operating a plurality of irrigation valves and lighting circuits in accordance with schedules wirelessly transmitted to it by the computer through the remote. When detached from the computer, the remote can wirelessly operate selected irrigation or lighting zones manually. The computer has an intuitive graphic user interface capable of using actual zone photographs to identify individual zones in a strip of zone icons. The icon strip is movable past a lens-like window, the zone icon under the lens at a given time determining the zone currently programmable. A residential system can be operated by a contractor from the street, and the system can be programmed by e-mail from the contractor's shop. Fully automatic operation may be derived from data obtained over the Internet.