Description:100% Brand New and High Quality.1. Design your runway. You can also design a complex runway using 15-20mm black electrical tape directly on the ground.2. Easy to assemble. We provide you with an electronic brochure. Assembly is easier and great for kids, beginners and amateurs.3. Wide range of applications. It's popular to help children understand welding project knowledge like mechanical structure, electronic basic technology, and sensor principle.4. Working principle: LM393 compares the size of two photo-resistors at any time. When there is imbalance, control one side of the motor to stop and the other side accelerates and rotate, so that the car can be corrected in direction and restored to the correct direction. Specification:Material: plasticColor: multi-colorworking principle: after the successful installation, the car can travel along a black track with a width of about 15mm. LM393 compares the size of two photo-resistors at any time. When there is imbalance, control one side of the motor to stop and the other side accelerates and rotate, so that the car can be corrected in direction and restored to the correct direction. The whole process is a closed-loop control. Therefore, it can be quickly and sensitively controlled.Package Included:1PC * Smart tracking car kitNote:1. Due to the light and screen difference, the item's color may be slightly different from the pictures.2. Please allow 0.5-2cm differences due to manual measurement.
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