GTrush

I have writen an example on how to calculate AHRS parameters using M5Stack grey with MPU6886 and BMM150 sensor, you can check it out. [M5StackGrey_MPU6886_BMM150_AHRS_sample](https://github.com/omegatao/M5StackGrey_MPU6886_BMM150_AHRS_sample) https://github.com/omegatao/M5StackGrey_MPU6886_BMM150_AHRS_sample

> > > I have writen an example on how to calculate AHRS parameters using M5Stack grey with MPU6886 and BMM150 sensor, you can check it out. [M5StackGrey_MPU6886_BMM150_AHRS_sample](https://github.com/omegatao/M5StackGrey_MPU6886_BMM150_AHRS_sample) https://github.com/omegatao/M5StackGrey_MPU6886_BMM150_AHRS_sample >...

> Hi! I have tweaked MxMyMz and added soft iron calibration in omegatao's library. If you are using arduino IDE, try https://github.com/9PEO0xNd/M5Gray_MPU6886_BMM150 cool, you can also create a pull request...

同问，现在就差switch-lan-play了。