Is it possible when when you connect to Bluetooth with a car that you can fetch it's battery level? What would you need to use in Android Studio to achieve this?

CodePudding user response：

I'd start with ODB2, AndrODB is an open source Android project that might already do what you want.

If this information (battery level) is not available in the ODB protocol you have to go a level lower and look into CAN bus.