Flipper Zero *.sub file to HackRF *.C16 data converter
🚧 Project still under development and likely to be changed in the future
Currently only supports the
RAWprotocol.
The freshly available Flipper Zero has a huge community behind that uploads a lot of recorded-remotes files for many use-cases (HVAC, office lights, smart plugs, Tesla...).
This tool will perform the time-to-signal conversion and generate both C16 and TXT files that you can save on the HackRF's SD card and use them later.
Node.js >= 14
npm start -- -f <input_file.sub> -if <intermediate_freq> -a <amplitude_in_%> -sr <sampling_rate> -o <output_file.type>-
Only the
-fparameter is required. If no output path is specified (-o), the input file name will be used for bothC16andTXToutput files. -
Output file in the
C16extension means that the output files has pairs of complex[I,Q]signals, encoded on 16-bit signed integers. -
Phase between
IandQis 90° (fixed). -
If no amplitude percentage is supplied (
-a),100is used by default. -
If no sampling rate for the output file is supplied (
-sr),500ks/sis used by default. -
If no intermediate frequency is supplied (
-if), its value will besampling rate / 100.
Why an intermediate frequency? This is how SDR-based platforms works. You can refer to the following schematic.
Used sample is this Tesla charge port opener sub file
- Amplitude is 40% of the maximum allowed
- Modulation frequency is 19Khz
- Sampling rate is 250ks/s
npm start -- -f 433.92MHz_AM650_Better_Tesla_Charge_Port_Opener.sub -if -a 40 -f 19000 -sr 250000 -o outBelow is the comparison between the C16 [I,Q] data and the sub file preview on lab.flipper.net
The HackRF's metadata file will have the following lines:
sample_rate=250000
center_frequency=433920000