DoorP4 is an open-source ESP32-P4 SIP door intercom for the AVM FRITZ!Box, built with PlatformIO/Arduino, Ethernet and bidirectional G.711 audio.
Current release V1.02a provides SIP audio. Video support is planned using an external IP camera integrated via the FRITZ!Box. The ESP32-P4 camera interface is currently not used and can be added as an optional extension.
DoorP4 is an experimental SIP door intercom based on the ESP32-P4.
The current version V1.02a provides:
- Ethernet connectivity
- SIP registration with a FRITZ!Box
- Doorbell button handling
- SIP call setup
- Bidirectional audio
- INMP441 microphone input
- ES8311 audio output
- G.711 A-law (PCMA) audio over RTP
- Simple web interface
Current development platform:
- Waveshare ESP32-P4 Module-DEV-KIT
- INMP441 microphone
- ES8311 audio codec / speaker output
- Ethernet connection
Detailed FRITZ!Box setup guide: See DoorP4_FRITZBox_Configuration.pdf for the complete step-by-step configuration with screenshots.
DoorP4 is already running as a functional SIP door intercom with bidirectional audio.
This is the first public version of the project. Documentation, configuration instructions, hardware details and further development will follow.
More to come.