D2-5 DIY Kit Intelligent Tracking Line Smart Car Kit

After the success of the car can be installed along the width of 15mm black track forward. Circuit by, photoelectric sensor, voltage comparison, motor drive several parts. LED projection to the black and white parts of the reflectivity difference, the received resistance of the photosensitive resistance will change. LM393 compare the size of the two photosensitive resistors, control the operation of both sides of the motor to correct the direction of the car to ensure that the car along the black track forward, the motor is equipped with deceleration device, do not vigorously rotating to prevent damage.

A main board
A car chassis
Trolley wheels 2
DC Gear Motor 2
Fasteners 4
Caster 1
Several screws and nuts