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MPU9250
Discontinued Arduino library for MPU9250 Nine-Axis (Gyro + Accelerometer + Compass) MEMS MotionTracking™ Device
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Also are you using the following MPU9250 library? If not then what are you using? hideakitai/MPU9250: Arduino library for MPU9250 Nine-Axis (Gyro + Accelerometer + Compass) MEMS MotionTracking™ Device (github.com)
The above library claims to be based on kriswiner/MPU9250: Arduino sketches for MPU9250 9DoF with AHRS sensor fusion (github.com)
You also need to determine if there is any kind of a conflict between these various packages you are using such as a pin number, etc. See RH_RF69 send hang due to waitPacketSent failed · Issue #12 · PaulStoffregen/RadioHead (github.com) So you need to be able to do testing with status messages to Serial so that you can see those logs.