Generate a fake OOK from rptix RF mode
OOK stands for On/Off Keying. Technically rpitx cannot generate pure OOK signal. The OOK signal is generated by using the RF mode with two frequencies that dupe the receiver. The main frequency (f_ON) is centered on the receiver frequency and the alternative frequency (f_OFF) is shifted far enough so that the receiver doesn't trigger it.
The signal generated by fake-ook-CMD.py reproduces the following signal (captured from original transmitter)
The payload is [ 1, 0, 1, 1, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1 ]
Run fake-ook-CMD.py to generated the .rf file
Then transmit the signal with rpitx according to the command line displayed by the script
sudo rpitx -i fake-ook-CMD.rf -m RF -s 27900 -f 434000
You will need to adapt the script for your own usage:
- BAUDRATE
- SYMBOL DESIGN
- HEADER and TAIL
- PAYLOAD
- FREQUENCY