• I posted a question on which protocol is used on a weatherstation forum, this is a reply I got:

    After some searching, I have determined that the Protocol may be 1.0
    or 2.1 protocol. It depends on what series you have. The later
    manufactured THR 188, has a 2.1 protocol. It is in any case certainly
    not 2.2 or 3.0 protocol.

    Looking at the bit rate of 342 Hz it is most likely I have a protocol 1 sensor. I also read in the documentation that the manchester coding is used.


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