Project Case : Blends into the background

HI
Old phone charger runs in from underneath supplying 5V. I use the button via automation to turn on light outside as a toggle. HA sees the button press as a binary sensor. Will take it apart and photograph. Just made it yesterday.
The Buzzer can be set to announce Mail delivery or door bell (can’t hear it from this room). Also will set it to announce alarms like rise in temperature in other rooms.
RTTTl tunes can be pushed thorough to it as a service.
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