DIY D2-5 Intelligent Tracking Line Car Kit is the most widely used in school for helping students to learn about the soldering project knowledge of mechanical structure, electronic basis skills, the principle of sensor, automatic control, soldering skill and so on. Features: There is a 16 mm wide black runway in the white field. This tracking car can drive along the black runway automatically. No matter how the runway is bent, the car can be driven automatically. We all know that the reflectivity is different when the light source to the white objects and black objects. Here we use red light source. The light is reflected through the ground to the photoresistor. By detecting the resistance of the photosensitive resistor can determine whether the car is driving in the white area. If the detection is black runway, then the car to change the direction of driving and motor will slow down or even stop and Red LED OFF on PCB front side. Drive the car in the opposite direction so that the car is always running along the runway. Specifications: PCB Size:104x72x1.6mm Installation dimension:104x72x55mm Work Voltage:3V Weight: 68 gm Tips: We provide pdf English installation manual with steps-by-steps and make it easier to assemble for teenagers, beginners and hobbyist. (Manual can be downloaded from download section after placing order) You can also use the 1.5~2.0 cm black electrical tape directly on the ground to design the complex runway. It would be even more fun! Note: This kit doesn’t come with batteries Package Includes: 1 x D2-5 Tracking Line Car Kit DIY
