Gy-85 IMU

Overview:
The GY-85 is a compact 9-axis inertial measurement unit (IMU) which is the combination of three on board sensors.
1. Gyroscope — ITG3205 It measures angular velocity (rotation speed)
Axes: X, Y, Z
Result : °/second
2. Accelerometer — ADXL345 It measures tilt and acceleration.
Axes: X,Y,Z
Able to identify:
movement due to gravity (tilt)
Beneficial for: motion detection and balance
3. Magnetometer — (HMC5883L / IST8310 variant) It determines the magnetic field of Earth
provides a heading for the compass (North)
Interference-sensitive