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.