X3D decoding attempt

[MrSven]

Hi everyone.
I’m searching for enthusiasts who are interested in decoding and encoding X3D messages. I’m owner of a bunch of thermostats and switch actors. I’ve also done a lot of research and created a PR to the rtl_433 to decode/dump some basic data.
https://github.com/mr-sven/rtl_433/blob ... dore_x3d.c
At the moment I’m working hard on identifying the message structure and find out what all the registers contain. Via second hand I was also able to own a Tydom.
The goal is to build a small ESP device as a Gateway and simulate devices.
Here are the basic protocol settings:

• Modulation: FSK PCM
• Frequency: 868,95 MHz
• FSK Frequency Deviation: 80 kHz
• 25 µs bit time
• 40000 baud
• based on Semtech SX1211
• manual CRC
• CCITT Data Whitening
• Preamble {32} 0xaaaaaaaa
• Syncword {32} 0x8169967e
• Length {8}
• Payload {n}
• CRC16(Poly=0x1021,Init=0x0000)

I started to document everything in a repository where I also want to setup the ESP Gateway.
https://github.com/mr-sven/x3d-rfm-esp32

[MrSven]

I'm nearly at 80% of protocol decoding, I think.
I now started to build a C++ library in a subfolder for generating and reading the messages.

[MrSven]

After two weeks of deep digging in a Tydom, I'm now able to communicate with the devices.
The list of registers and other devices still needs some work but in main I added a lot of stuff.

[MrSven]

I’ve now a working Controller in place with MQTT connection. Currently RF 66xx devices are implemented but the controller can be extended with more device types.