Hi I have 6 mpu6050 sensors with the same addresses. There is a trick on the Arduino website about connecting multiple sensors. It says
" Multiple sensors
The pin "AD0" selects between I2C address 0x68 and 0x69. That makes it possible to have two of these sensors in a project. Most breakout boards have a pullup or pulldown resistor to make AD0 default low or high. Connect AD0 to GND or 3.3V for the other I2C address.
When more MPU-6050 sensors are needed in a project, the I2C-bus can be extended with multiplexers. However, someone in the forum mentioned a nice trick:
Trick
Using more than two MPU-6050 sensors can be achieved by connecting each of the AD0 pins to a separate output of the Arduino. If the number of pins is a problem, then a shift register or a port expander can be used.
The output of a 5V Arduino can not be used. In that case a voltage divider or level shifter for 3.3 volts on each of the outputs is needed. The 5V output pins can also be converted in 3.3V open collector outputs by using transistors or an open-collector driver. Pullup resistors to 3.3V should be added for a high level of 3.3V.
Suppose all AD0 lines are default high (3.3V), so every MPU-6050 is I2C address 0x69. That I2C address is however never used ! The Arduino makes one of the AD0 lines low, and uses that sensor at I2C address 0x68. After that is finished, the Arduino selects another AD0 line, and can use that sensor.
So every sensor is used at I2C address 0x68 (one by one) and 0x69 is never used.
This should make it possible to have many MPU-6050 sensors in a project. Even more than 10 sensor should be possible.
Note that requesting data from many MPU-6050 sensors is slow, because the I2C-bus is slow. A sensor with SPI interface is faster.
At this moment (15 July 2014) it is not known if this trick works for the MPU-6050.
Has anyone tried this trick ?? connecting multiple mpu6050 ?? Please help