The goal of the project DoorPi is to control a door intercom by means of a single-board computer such as the Raspberry Pi and the communication protocol VoIP.

DoorPi is an event-action based system. There are components that trigger events and components that respond because of these events. For this purpose, events such as "pressing a doorbell" or "RFID Chip xyz held" triggers actions (Actions) such as "call on phone xyz", "e-mail to xxx" or "open door".

To register these events, "DoorPi keyboards" are used, which, for example:

• The GPIO pins
• A PiFace
• Files in the file system of the Pi (for example, for remote commands via SSH)
• The serial interface (RDM6300 as NFC reader)
• Web service with authentication
• VoIP phone

Any number of actions that are executed synchronously or asynchronously can be added to any event.

A non-complete list of actions is:

• VOIP call to a predefined number
• VOIP call to a number which is read from a file
• end call
• send email
• execute program
• set an output pin
• write a status file
• read values from IP-Symcon or write them back
• ...

Via the combination of events and actions, almost all combinations are possible.

One possible scenario is:

1. When pressing a bell push a call is triggered and specifically called a number (for example, internal FritzBox number * * 613 but also mobile phone numbers).
2. The resident can make calls to the field office and, if desired, open the door remotely by pressing a defined key (or key sequence) on the telephone (e.g., the "#" key).
3. The resident forgets to hang up and DoorPi himself ends the call as soon as the door is closed again.
4. DoorPi sends an e-mail saying there was a phone call, someone opened the door and someone walked into the house.

Meanwhile, there is also video support so that a camera can be installed on the front door and the image can be viewed on the indoor stations, even before the call is accepted.

The installation is described here (German thread)

Link to forums with DoorPi articles (German articles):

DoorPi Forum

[Home Care] DoorPi (VoIP Intercom / Door phone with Video-Support)

DoorPI / VoIP Door-Intercom with Raspberry Pi

see changelog.txt