MPU 6050 is a three-axis accelerometer and three-axis gyroscope. It works on I2C, but the interesting thing about this sensor is that it has a different address for different sensors. What did you just say? Different address for different sensors. Isn't it one single sensor?
Well, yes it is, but if you see the internal construction of the sensor, then you would find that for every different axis, the data is being stored in different registers from where we can acquire the data at our disposal. Hence, if you require just the reading of x axis of accelerometer, then you can do so efficiently rather than getting a whole long string of different values. Now connecting this sensor is super easy. All you have to do is to power it up using Raspberry Pi and simply connect the I2C pins over, as shown in the following diagram...
