RS485 and powerlines to irrigation valves. Edit

* The 24vAC valve actuating transformer must receive power from a 220v AC line. 
* ["RS485"] over TwistedPair connects to an AtmelMicro at the valve. 
* The AC power and TwistedPair are inserted inside a 20mm poly-pipe and buried below the soil using

a VibratoryPlow or TrenchingEquipment

Protect water pipes from theft Edit

Use a small pump and AC motor to maintain a set pressure in the aluminum or PVC pipe. Close the valves on the pipe using a RS485, ["RS485"] signal. If the pipe is cut the pressure drops and the AC ampere meter spikes indicating it. Use a AtmelMicro to continually measure the AC current and trigger an alarm should there be a change in the current.

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