Teensy 3.1 driving both motor controllers, with feedback tapped in to the sensors. Wired up, flipped right-side-up, with new wiring harnesses.
You can hear that the two motors are not exactly synchronized. At the same output level (e.g. "146") the left might be at 5371 uS per pulse while the right is at 4292 uS per pulse. Meaning that the right motor is running slightly faster than the left motor.
Now that it's all wired up and I've captured data on the relative speeds, it's just a matter of clever programming to have this controller match the output of the two motors...
