Microchip says that my order is 2nd day Fedex. It should arrive either tomorrow (Monday) or Tuesday. Once it arrives I will begin to know where I stand.

Thanks Don for your pointer to the output circuits.

We don't have FRY'S in Massachusetts. We do have YDI (You Do It) but it is a long drive from Fitchburg. Other than Radio Shack what other stores will support me in this project?

My radio control car is not the one for the finished project. It is one I got for the correct price - free. It is a HPI Racing SPRINT 1/10 4WD Electric Touring. It is quite a beautiful little mechanism. It has two differentials. The four wheel drive makes in incovenient for the final vehicle. There is a drive belt the length of the chassis right where the PIC should go.

Electronicly it contains:
One radio receiver, one pretty hefty electronic speed control, one type 540 motor, one steering servo, one 7.2 volt Ni-Cd battery pack.

I had an idea for narrowing the lens angle for my light detector. I could put it at the end of a toilet paper cardboard tube which sticks out the windshield of the vehicle. A reasonably designed 360 degree turn might just allow the 'correct' light sensor to react accurately from, say, thirty to forty feet. What is the correct light sensor assuming I am using a 100 watt incandescent bulb.

Ken