Remote controlled multi-station irrigation system with DTMF transmitter

A remote controlled multi-station irrigation system, comprising:

• a controller comprising:
• (a) a plurality of individual station actuator circuits,
• (b) a central processor,
• (c) an input terminal means connected to provide input signals to the central processor, and
• (d) interface circuitry interfacing between the central processor and the station actuator circuits,
• the processor being responsive to input signals from the input terminal means to provide operational control signals via the interface circuitry to selected actuator circuits,
• a remote portable transmitter adapted to broadcast selectable discrete wireless station identity signals corresponding to the respective station actuator circuits, together with an operation signal to initiate the actuation or deactuation of a selected station;
• the transmitter including means for manually selecting a particular station identification and operational signal for transmission,
• a receiver adapted to receive broadcast signals from the transmitter and to produce corresponding input signals for the central processor, the central processor responding to said input signals to provide an operational control signal corresponding to the received operational signal only to the actuator circuit for the selected station and
• means connecting the receiver with the controller's input terminal means for transmitting processor input signals from the receiver to the controller.