Hi.
I have been trying to replay a signal from a weatherstation but are running into some issues.
So with a RTL SDR and rtl_433 software I was able to record a signal from a simple weatherstation. The signal was looking like this:
https://triq.org/pdv/#AAB10401CC059C0428386C82828282828282829282929282929282829282929292929282929282929282928282828282828282828282829292828355
By entering the pulses into a .sub file I was able to create a file that looks exactly like the prerecorded signal. I was using lab.flipper.net pulseview to verify my .sub file.
But when I record the signal sent from my flipper zero with rtl_433 it looks like this (49 bits instead of expected 48bits):
https://triq.org/pdv/#AAB104041401D805B43984809090909090909090A090A0A090A0A09090A090A0A0A0A0A090A0A090A0A090A0909090909090909090909090A0A0909355
Somehow there is some sort of a sync-bit as the first bit that shouldn’t be there.
As a test I shortended the pulse at the very beginning of the .sub file (in this case to 250us), I can see in the resulting signal that it becomes the second bit.
https://triq.org/pdv/#AAB105041400F401D805AC39848090A0A0A0A0A0A0A0B0A0B0B0A0B0B0A0A0B0A0B0B0B0B0B0A0B0B0A0B0B0A0B0A0A0A0A0A0A0A0A0A0A0A0A0B0B0A0A455
How do you get rid of that first sync-signal? I just want to send my .sub exactly like the file is created.
//My created sub
Filetype: Flipper SubGhz RAW File
Version: 1
Frequency: 433920000
Preset: FuriHalSubGhzPresetOok650Async
Protocol: RAW
RAW_Data: 460 -1064 460 -1064 460 -1064 460 -1064 460 -1064 460 -1064 460 -1064 460 -1064 1436 -1064 460 -1064 1436 -1064 1436 -1064 460 -1064 1436 -1064 1436 -1064 460 -1064 460 -1064 1436 -1064 460 -1064 1436 -1064 1436 -1064 1436 -1064 1436 -1064 1436 -1064 460 -1064 1436 -1064 1436 -1064 460 -1064 1436 -1064 1436 -1064 460 -1064 1436 -1064 460 -1064 460 -1064 460 -1064 460 -1064 460 -1064 460 -1064 460 -1064 460 -1064 460 -1064 460 -1064 460 -1064 460 -1064 1436 -1064 1436 -1064 460 -1064 460 -14444