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portapack-mayhem
TPMS for Toyota
Is TPMS for Toyota vehicles supported by the TPMS Cars app? If not, could it be added? (rtl_433 has the code to decode these sensors).
It's difficult to add TPMS support for sensor types that we don't happen to have on our own vehicle, but if you could run the rtl_433 app with the -vvv verbose setting and capture the output it might help, so we can see the packet format. Another possibility is that you could use the Capture app to capture a packet and attach that (if you can get the TPMS sensor to transmit at will, such as by changing the tire air pressure rapidly).
Thanks. I can do that, but wouldn’t looking at the rtl_433 source for decoding the packet be even more useful? tpms_toyota.txt
On Thu, Jan 18, 2024 at 12:12 AM Mark Thompson @.***> wrote:
It's difficult to add TPMS support for sensor types that we don't happen to have on our own vehicle, but if you could run the rtl_433 app with the -vvv verbose setting and capture the output it might help, so we can see the packet format. Another possibility is that you could use the Capture app to capture a packet and attach that (if you can get the TPMS sensor to transmit at will, such as by changing the tire air pressure rapidly).
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That's probably enough information in the rtl_433 code to create a test version, but the more we have to work with the better. A capture file would also allow us to transmit the TPMS code on one Portapack to test if another Portapack receives it (theoretically rtl_433 should also show it if you Replay the capture).
Hmm, I have a toyota and a kia both with radio sensors... I'm too noob for the radio stuff to implement it at the moment but I can try to capture and isolate their signals if that helps :)
