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We decided to use a SONOFF S20 attached to a door sensor.
Parts
Part | Image | URL |
---|---|---|
Sonoff S20 | ||
Gikfun MC-38 Wired Door Window Sensor for Arduino EK1656C |
Wiring
Connect Door sensor to GPIO3(TX on Sonoff S20 board) and GND.
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Via the console, set Switchmode to 2
(inverted follow 0 = on, 1 = off )
> Switchmode 2
Future
May use a SONOFF basic and hide the controller in the box behind the plug so that no wires are visible.