I did have some trouble with the independent battery that supplied the microcontroller. The jumper wires litterally bubbled, smoked, and burned off the wire insulation. See picture below.http://www.zbasic.net/forum/download-32 ... pc_t=74446
I only fried the wires between the battery and voltage-regulator VIN. My theory is that a simple short ocurred somewhere along that wire train. That battery only powers the ZX-40A microcontroller, 1 LED, 2 IR range sensors, 2 PWM signals to the motor driver, and the +5V (IN) to the motor driver. I can not imagine this drew enough power to fry the battery wires. The motors themselves are powered by a separate 7.2V NiCad pack. My other theory is that the motor driver +5V (IN) drew to much power, but that's unlikely, right? It would be nice if the VNH2SP30 used regulated 5V from its own VIN (+) pin to completely isolate the motor driver from the microcontroller (aside from the PWM signals). Appreciate the comments.