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For Synology

Switching the LED of a surveillance cam on and off using Linux

I already wrote a script on my Raspberry that starts and stops the surveillance mode of my camera using the “Surveillance Station” on the Synology DiskStation. Now I wanted to extend that tool and light the LEDs of the cam when it is recording and turning them off if it isn’t.

This has two reasons: First: I do not want to use the cam for “secret recordings”, damaging the private spheres of my visitors. Second: I can easily see if the cam is working as expected. Now my cam has the option to activate the LEDs or deactivate from a web interface, but it is all-or-nothing. It does not depend if it is recording or not. Which isn’t a surprise as the camera does not trigger the recordings itself but this is done by the Surveillance Station.
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Automate your Synology Surveillancestation with some simple Linux – commands

I own a Synology diskstation which has the “surveillance station” on board which records content from any LAN (or WiFi)-enabled webcam and sends an alarm when someone is moving at my home. It is possible to enter time schedules when the camera should be enabled and when it shouldn’t. But that does not really work the way I wanted. When I come home earlier or even have a day off I have to disable the camera manually.

So I decided that I want to use my smartphone to trigger the surveillance mode. Like most of us I always carry the phone with me. So it should be easy: If the phone is at home, I am, too. So the camera should be off. The same way when I am not at home.

The solution for this was surprisingly simple: A small bash-script first checks if the phone is in the network. The Surveillance station cam gets enabled or disabled according to this one condition.

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