Opentherm and opentherm rf

Tags: #<Tag:0x00007fc9c40ac338> #<Tag:0x00007fc9c40ac248> #<Tag:0x00007fc9c40ac040>

Hi all. I just bought a new boiler and went for one that could speak opentherm.
This was so that external temperature and desired/current room temperature can be fed to the boiler allowing better control.(
This has an open therm connection for which an adapter can be built and then attached to the boiler via cable ( The boiler also allows control via RF using an 866Mhz protocol.
Has any one managed / tried to reverse the RF protocol ?