Bresser

[Bruno Cheganças]

HI,

I have the Bresser device presented in the URL below.

https://www.bresser.de/Wetter-Zeit/Wetterstationen/NATIONAL-GEOGRAPHIC-digitales-Thermo-Hygrometer-fuer-4-Messbereiche-schwarz.html

When I use the rtl_433, the remote sensors appear labelled as model Nexus-TH (protocol 19). If I restrict the protocols to the ones associated with Bresser devices (52 - which I would think would be the most probable - 119, 172 or 173) I get nothing. I suppose manufacturers might be sharing data encoding schemes or even rebranding devices)

Is this expected?

One other thing, I would expect that each device would broadcast its serial or unique device id. Is this not the case?

The only id I see in the output, is "id" which seems to be persistent over time until the device is reset (or simply have its batteries changed). It there a way to output some device details that would later allow for a deterministic filter  being resilient to the battery change scenario?

Thank you for your help.

Cheers,

B

[Christian Z.]

This is expected. The Nexus protocol is very simple and widely used. The transient ID is all you get. There isn't even any checksum.