Brennenstuhl Brematik thermostat - no RF detected with homeduino

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I have bought the Brennenstuhl Brematik thermostat. I cannot detect any code with homeduino in debug mode when I use the corresponding remote control. Did anyone get the thermostat to work?

interesting device, a radiator thermostat based on 433MHz
so you do not get any debug on this but on other devices it works?

seems that homeduino is not able to translate into any useful information.

@leader21 yes, I successfully received unitCodes and attributes for other 433mhz devices with homeduinoRF debugging enabled.

Even with the RFSniffer I don’t receive any code when I use the radiator’s remote control.

I will try again if the remote learning mode of the radiator reveals something. If not I am going to contact Brennenstuhl.

@leader21 I have talked to the technical support of Brennenstuhl today. In contrast to their plug socket the thermostat uses a radio component from a Chinese supplier. Experience showed that it would not make sense to contact them to get the codes.

Can someone suggest a great script to sniff the radio frequency transmitted by the remote control and visualize it for transformation into binary codes?

If you don’t pick up anything with homeduino I would guess its maybe frequency modulated (FM) instead of AM.

Maybe using something like the rfm12

https://www.pollin.de/shop/dt/MDU5OTgxOTk-/Bauelemente_Bauteile/Bausaetze_Module/Module/Funkmodul_RFM12_433_Sende_Empfangsmodul.html

@thex I have followed this tutorial to derive the binary code from the FM signal. I use the RXB6 receiver.
So far my captured codes did not work, although the plot looked liked FSK.

Good point, I’ll try to use an FM receiver as well.

I finally got an email response from Brennenstuhl. They are using a rolling code for the thermostat.
However they are currently evaluating about making the protocol open source.
I have asked them to keep me updated on their decision.