I have been trying for while to decode the ON/OFF signal from my Worcester Digistat thermostat (picture attached).
It is a RF433 thermostat, but the electronics is all hidden under the LCD unit.
The idea is to capture the signal and reproduce it with a cheap RF 433 FS1000A transmitter attached to an Arduino. The approach is similar to the approach in this post. I was successful with radio controlled power sockets.
The recorded .wav file is then exported to Audacity and looks like the attached pictures. The signal is repeated 3 times.
This signal looks different from most of the signals I have seen online from tutorials doing the same thing. I am not an expert in RF and radio communication so I am struggling to interpret it because:
- I do not see vertical sharp lines
- The short signals look more like spikes
- The is a lot of noise at the end of the signal
- The lows and the highs have both variable duration and I cannot identify a clear pulse
I tried assigning 0s to spikes and 1s to long signals, but it did not work at all.
Anyone could provide some hint?