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The video below shows how the device works. As soon as the light is switched on, both the LEDs indicate occupancy and the music starts playing. If the light is turned on for more than 10 minutes,the red LED inside the bathroom starts blinking and the music stops. When the bathroom light has been switched off, both the LEDs are off and the music stops playing. This also triggers a new entry into the online spreadsheet , which can be seen here:  

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