So moving along with getting a NYMEA raspberry in my RV.
After driving over 100 miles with a trailer tire missing (It blew and disinegraded and i didnt know it) i realized i need a TPMS for the trailer i tow behind the RV. Since it has 4 tires, and the RV is so heavy, you dont even realize when you have blown a tire till its too late.
All the aftermarket TPMS systems are expen$ive and kind suck. Their battery life is less than a year. I want factory style TPMS that lasts for 5-7 years. So, using a software defined radio and rtl_433, i found that its possible to decode the data broadcast from some TPMS sensors and get them into the raspberry. Unfortunatly i wasnt able to do this on my truck, but on my friends jeep it worked! So, i ordered the same sensors on his jeep ($100) and the programing tool ($200) and should be able to read the tire pressure data without issue.
How do i get this data from the external program into NYMEA. I remember somewhere int he docs it said something about bringing in external program data, but i cant recall how.
And FYI, if you want to have some fun, get a software defined radio for $20 and run that rtl_433 at home. You will be amazed how many devices you will be reading from neighbors, passing cars, etc!