Hi,
Please see my comments below.
1. Please see the attached PDN for BMM150. The last time buy is 06/20/2024 which means after 07/01/2024 there is nowhere to buy BMM150. The last delivery is 12/31/2024 which means after 01/01/2025 we will stop delivering BMM150 to the market. You can google search magnetometer calibration library or source code to calibrate BMM150. Bosch BMM150 or BMM350 magnetometer algorithm is built-in BHI360. We cannot release it to the public.
2. Yes, with BHI360 + BMM350 you can get 9DoF sensor fusion results such as Euler angles, quaternion, linear accelerations and gravity vectors immediately. Please refer to Section 3.2 about how to play with BHI360 with our COINES SW. You can copy and paste example code to your MCU IDE to get started.
3. When the car is stationay you can rotate your device in 3D space for a short while. And then place your device in the car to get the heading angle assuming the magnetometer such as BMM150 or BMM350 will not get saturated because of the car magnetic field. After the car is moving, then you can use GPS signal to tell you the heading.
Thanks.
... View more