Hi. I'm facing a problem with my arduino UNO project. We use the mpu 6050 and the sabertooth 2x25 for a self balancing bot. When the application is running on debug mode (without sabertooth and motors connected) mpu data seems to be correct on the serial window. The problem is that when the power is on (24V batteries) and both sabertooth and mpu6050 are connected, the i2c communication fails sending a message on the serial monitor i2c read failed:4.
On the site it is reffered as "other" problem, (not much helpfull....). We checked on the net for solutions like the VIO pin on the mpu6050, but our mpu doesn't have one.
Are there any suggestions on what may I do? Can the sabertooth be causing the problem?