With a multiplexer or high-speed CMOS you can use multiple (more than two) sensors via I²C on Arduino.
- Install library I2Cdev by Jeff Rowberg
- Install library MPU6050 by Jeff Rowberg
With two 1/8 multiplexers (74HCT4051) you can read eight sensors.
Arduino sketch → multiple-mpus_with-74HCT4051.ino
With one high-speed CMOS (74HCT4052) you can read four sensors.
Arduino sketch → multiple-mpus_with-74HCT4052.ino
Don't be shy and feel free to contact me on Twitter: @darius_morawiec
The library is Open Source Software released under the License.