I'm trying to connect a timer output wirelessly to another circuit. These are on two separate power lines (different phases, circuit, long distance), so I thought of connecting them wirelessly, I'll use a standard low cost remote controlled switch which have separate on and off push switches.
Now I need to detect the power output from the timer, when there's power, a single signal should be sent to trigger the "on" switch, when the power drops off, another signal to trigger the "off" switch. The signal should be short, low voltage, like 0.5seconds only and meant for a transistor.
Ultimately, the power change should be detected directly from the timer's output which is 240v AC.
The output signal can be either separate wires for on and off signals, or a single wire with positive and negative trigger for on/off.
See the diagram below for better explanation.