MPU6050 Module 3 Axis Accelerometer Gyro GY-521 Analog Gyro Sensors Breakout Board for Quadcopter Arduino Robotics Raspberry Pi Boards

The MPU-6050 sensor module contains an accelerometer and a gyro in a single chip. It is very accurate. Since the board contains 16-bits analog to digital conversion hardware for each channel, therefore it captures the x, y, and z channel at the same time. The sensor uses the I2C-bus to interface with the Arduino.
Specifications:
Model:GY-521
Pitch:2.54mm
Chip: MPU-6050(three-axis gyro + three-axis accelerometer)
Power supply: 3-5v (internal low dropout regulator)
Communication modes: standard IIC communication protocol
Chip built-in 16 bit AD converter, 16 bits of data output
Gyro range: + 250 500 1000 2000 ° / s
Acceleration range: ± 2 ± 4 ± 8 ± 16 g
Pin Definition: VCC, GND, SCL, SDA, XDA, XCL, ADO, INT
Board size : 20mm(length)*16mm(width)
Gyro range: ± 250 500 1000 2000 ° / s
Immersion Gold plating PCB, machine welding process to ensure quality

Please note, these will NOT tell you the absolute angle that a device is being held at, they only sense short events like tilting or spinning. For that you need a 9axis (9DOF) module, OR you can connect a compass (magnetometer) to this module through the slave port. (basically turning this 6axis into a 9axis)

Features:
It is a really powerful device along with the 3 axis gyro and accelerometer
It is quite sensitive, and can detect light tapping on the table top
Applications:
Various robotics
Quadcopters
Smart phone
devices
Handheld games
Electronic Image Stabilization (EIS)

Package List:
1 Pcs 3 Axis Analog Gyro Accelorometer Module
1 x straight header
1 x 90 degree header

• This is an excellent MPU with accelerometer and gyro, simple to use with arduino and other controllers, its communication is via I2C(use the Wire Arduino library)and give motion sensing information for 3 axes - X, Y and Z.
• The MPU6050 module contains both a 3-Axis Gyro and a 3-Axis accelerometer allowing measurements of both independently, but all based around the same axes, thus eliminating the problems of cross-axis errors when using separate devices.
• This gyro-accelerator device is very handy and accurate.No drifting or anything. With a bit of software damping and low pass filtering, one can achieve super accurate and still roll and pitch angles as well as angular velocity readings.
• Excellent 3-axis accelerometer and 3-axis gyro.Great unit for doing both accel & gyro functions.Very reliable and extremely easy to use.
• They included two sets of pin headers(1 x straight and 1 x 90 degree), which is a nice bonus.