Intercom

As an intercom a Auerswald TFS-Universal Plus was chosen. It fits perfectly into the letter box and can be easily integrated into openHAB through switching and relay contacts.

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The doorbell signal is forwarded through universal interface to openHAB and sent via push notification to my phone.

The door opener is activated by a switch actuator together with a 220V / 12V Relay..

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Finally, the intercom can be called via an external phone number of my fritzbox and can be controlled from outside e.g. from the office. It is protected with an “5-digit PIN”.

http://www.intranet-of-things.com/
http://www.intranet-der-dinge.de/