AllenChao2019

Hi Joseph & All, Sorry for the confusion of IMU using in M5Stack Gray/GO/Fire. I need to explain the story for this double change. We used to use MPU9250, which...

> 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 Thx for sharing, 9PEO0xNd. That is great!