This is especially useful in hand-held devices such as mobile phones, because it can filter the unintended ambient movement and vibration of a user's hand, allowing for a more accurate measurement of intentional movements. GY-521 MPU6050 6DOF 3-Axis Gyroscope and Accelerometer Module is not expensive, especially given the fact that it combines both an accelerometer and a gyroscope. When used together, a gyroscope and accelerometer provide a six-axis interpretation of movement through space. The sensor uses the I2C-bus to interface with microcontrollers.

Therefore it captures the x, y, and z channel at the same time. It is very accurate, as it contains 16-bits analog to digital conversion hardware for each channel.

This module is very useful for balancing. MPU-6050 sensor contains a MEMS accelerometer and a MEMS gyro in a single chip. This compact 9DOF (degrees of freedom) board contains 3 sensors to measure speed, rotation and the magnetic poles. GY-521 MPU6050 6DOF 3-Axis Gyroscope and Accelerometer Module is a carrier board based on MPU-6050 sensor which contains an accelerometer and a gyroscope. GY-521 MPU6050 6DOF 3-Axis Gyroscope and Accelerometer Module info

Accelerometer gyroscope