Trouble you good friend, I want to do an automatic car back and forth, back and forth through sensors to detect the black thread, now want to use 32 to programming,
The specific requirements as follows
Can design and produce a automatically return to the starting line with the line between the car and allowed to use the toy car, but can't use manual remote control (including wired and wireless remote control), the track width 0.5 m, the surface with a clean SLATE, on both sides of the baffle, baffle vertical to the ground, the height of not less than 20 cm, the track of B, C, D, E, F, G drawing is 2 cm wide of the black line, the length of the paragraphs as shown in figure 1, 2, 1. The basic requirements
(1) from the starting line (before departure, car body shall not exceed the starting line), reached the finish line after 10 seconds, then automatically return to the starting line (allow reverse return), a back and forth time should strive for the shortest time closed auto power switch (start),
(2) arrived at the finish line and return to the starting line, parking location deviation should be from the starting line and the line the minimum center (in the vehicle with the finish line or distance as the measured value of the deviation between the center line of the starting line),
(3) is the speed limit area between D ~ E, vehicle requirements by low speed, back and forth through time shall not be less than 8 seconds, but don't allow parking in the speed limit,
Because it is new, bother everybody to help, thank you!!