It wouldn't be too hard to connect a pot or hall sensor to the steering and make the controllers drive the outside wheel harder than the inside wheel. It would almost be like tank steering. This would make U-turns a breeze. I think they have stuff like this for RC models. I think a simple proportioning circuit would do it.
AFA the disembodied power stage for a controller, this has been suggested several times. If you isolate the PWM from the power stage with opto couplers, there would be almost no way to blow up the PWM part. An old audo amplifier usually has a really nice looking case and a very ample heat sink.
AFA the disembodied power stage for a controller, this has been suggested several times. If you isolate the PWM from the power stage with opto couplers, there would be almost no way to blow up the PWM part. An old audo amplifier usually has a really nice looking case and a very ample heat sink.