I have a THINK City and have set it up to run the latest OVMS version with the THINK City vehicle configuration.
Much of the time I've found the data coming from and displayed on OVMS of little value to me or the connectivity too poor that the data displayed is just stale.
One thing that would be cool is if the main vehicle display could include tire pressures. On the THINK City, regular TPMS messages with pressure info are regularly received while driving. It would be nice to display the pressures, but so far I don't see that this is done generally with the OVMS software stack.
Any thoughts on this? I'm not interested in any big realtime data here, just that once up to speed and tire pressures stabilize, it would be good to capture and display them so the driver could see if a specific tire is getting low or if a particular TPMS sensor has gone South...
Thanks!
-Myles Twete
I don't see any documentation for Think City, and the vehicle support code doesn't mention TPMS, so I guess this is very new and has limited support.
This use case of detecting a fault sensor and solve the issue can be fully universal solved with: https://github.com/merbanan/rtl_433
Its decoding nearly any TPMS sensors RF data from any car manufacturer out there and show the values and the TPMS-ID that have been send from the sensors. Thanks to showing the signal quality, you can place the antenna strategic to know what tire have what ID.
Interesting project, but requires high-end hardware (linux, mac, windows, etc). They mention maybe able to port to embedded, but seems to require external USB hardware (and USB stack support for that) for the actual radio.
OVMS typically works off what is on the CAN bus. The data is normally there, but sometimes hard to decode as manufacturers don't typically publish the coding.