Description: DIY Kit Intelligent D2-1 Patrol Tracking Smart Car Parts Electronic Suite Installed after the success of the car can be along the width of 15mm black track forward. Circuit by, photoelectric sensing, voltage comparison, the motor drive several parts. The luminous tube is projected to the black and white parts with different reflectances, and the received photoresistor resistance changes. compare the size of two photosensitive resistors, control the operation of the motor on both sides, thereby correcting the direction of the car to ensure that the car along the black track forward, the motor is equipped with slowdown device, please hand vigorously rotation to prevent damage. Specification: Material: Metal & Plastic Color: Multi-color Size(LxWxH): Approx. 300x200x10mm/11.81x7.87x0.39inch Package Includes: 1 piece Intelligent Tracking Car kit Note: Pls allow an error of 1-3mm due to the difference of manual measurement. Motor with magnetic
