Complex, costly and performs a useless task.
The solar powered car darts from its starting position away from the lamp--only to be returned and repeat the cycle.
The runway, in its lowered position, closes a normally open micro switch--allowing power to a 12 volt, 50 watt halogen lamp. This causes the solar powered car to race down the runway out of the light beam. An Arduino microcontroller causes a servo motor to raise the runway, thus opening the switch, shutting off the light and causing the car to roll back to the starting position. The runway is lowered and the process repeats.
Solar Car--Amazon.com (less than $5.00)
Servo HS 322--makershed.com
Power supply for lamp--use a low voltage undercabinet supply of 50 watts or greater; regulated 12 volts supplies may not provide enough starting current to illuminate the lamp
void setup ()
void loop ()