https://gdoor-org.github.io/

Gira is a german manufacturer of house appliances, including door systems. These systems are connected via a proprietary two wire bus system. GDOOR is a project to collect and document findings about the Gira Door System, all figured out by reverse engineering.

The GDOOR hardware adapter allows listening and controlling the bus and e.g. integrating a Gira door bell into a smart home. It might serve as an DIY alternative to the Gira TKS-IP-Gateway. It supports the following features:

• listening to the bus, e.g. to trigger notifications on mobile devices when a door bell button is pressed
• sending to the bus, e.g. to open the door

Receiving and sending audio/video is currently neither supported nor plannend.

Contributions are welcome!

Currently work is ongoing to release a ESP32-based adapter, which translates the bus messages to MQTT/serial and vice versa.

Hardware can be found in the hardware subfolder, corresponding firmware in the firmware subfolder.

The adapter was successfully tested with

• Gira Türkommunikations-System Steuergerät Audio (1287 00)
• Gira Türkommunikations-System Steuergerät Video (1288 00)
• Gira Wohnungsstation AP (1250 015)
• Gira Wohnungsstation Video AP Plus (1239 03)
• Gira Türstation AP 1-fach (1266 65/66/67)
• Gira Türstation AP 3-fach (1267 65/66/67)

• Home Assistant

See detailed findings about the Gira bus protocol.