Okay. Here are some pictures of the robot and the wiring. There is also a video of the bot malfunctioning. I am using to Rs550 motors with 16:1 banebots gearboxes.
I added 2.2k Ohm pull down resisters to both the output pins, but it seemed to have no effect.
Weirdly enough, the issue only seems to occurs if the arduino is not plugged into the computer via usb. Any idea the reason for this?
For testing the right motor is being directly controlled by the X axis of the joystick and the left motor is directly controlled by the y axis of the joy stick. When it goes haywire both motors are thrown into full reverse as if both Signal1 and Signal2 assume a value of 1000us. I can't confirm this as the issue doesn't occur when it is connected to the computer.
Thanks!!
Walter
