How to capture new TPMS data
StavJi opened this issue · 2 comments
Hello,
trying to decode raw data using rtl_433 SW. This is what I am sending: "111111001100110101010101010101010100101010110100110101001011001010101101010100101010101101010100110011010011010010101011010101001100110100101100"
On picture what I am decoding. I noticed that rtl trying to use PWM modulations but it should be FSK. Can you explain to me how to get back to your data? I supposed that you somehow captured TPMS message from car and I want to know how did you do that? Thank you for your help.
I captured using rtl_433 - merbanan/rtl_433#821
I merely replay the encoded bitstream with tpms_silencer - I don't do any actual Manchester encoding on the transmitter. So you will want the raw-bitstream from rtl_433.
I figure it out, problem was that your sensors uses baudrate of 10000 so to capture raw bitstream using rtl_433 you need to use command: rtl_433 -R 0 -X "n=tpms,m=FSK_PCM,s=100,l=100,r=250". I think more common (my case) is sensors with baudrate 20000 so cmd will be: rtl_433 -R 0 -X "n=tpms,m=FSK_PCM,s=52,l=52,r=150".