This module is based on the Invensesnse MPU 9255 sensor that combines 9 DOF ( 3 axis Gyro, 3 axis Accelerometer and 3-Axis Digital Compass). They are all accessible either through I2C bus or SPI.
The sensor can be used in many application such as angle measurments ( yaw - pitch -roll), motion detection, gesture position or as pedometer for counting steps while walking.
- VCC: 3.3 volt
- GND: Ground
- SCL: Clock line for I2C
- SDA: Data line for I2C
- ADO: In I2C mode, it is used to define the address of the sensor.
- INT: Interrupt line.
MPU 9255 arduino code (good code that uses quaternions for transormations and Kalman filter for noise).