Intelligent D25 Tracking Car Kit for Line Following and Sensor Experiments Product overview The intelligent D25 Tracking Car is a handson kit designed for learning and experimenting with line following and sensor integration. It uses precise infrared sensors and an LM393 voltage comparator chip to detect and track lines, enabling practical exercises in robotics, control, and electronics. Key benefits Teaches core robotics and sensing principles through a simple, physical project. Precise infrared sensing provides reliable line detection on different track patterns. Snap together parts and an intuitive tutorial make the kit accessible for beginners while still useful for more advanced learners. and adaptable for classroom labs, individual projects, and STEM workshops. Compact, lightweight design suitable for tabletop experiments and portable demonstrations. Main features Automatic line following capability using infrared sensors for accurate navigation. Main control chip: LM393 voltage comparator chip for sensor signal processing. Supports and programming experiments for educational projects. Easy assembly with snaptogether components; tutorial included for immediate use. Specifications Item: intelligent D25 Tracking Car Components: Plastic and metal Size: about 7.2 x 10.50 cm (2.83 x 4.13 in) Board size: about 7.2 x 10.50 cm Supply voltage: 3 V (requires 2 AA batteries, not included) Package contents: 1 PC D25 Tracking Car part Typical use scenarios Classroom STEM lesson: Demonstrate sensor feedback and control by building the car and running line following experiments. Hobbyist project: Assemble the kit to practice wiring, sensor calibration, and algorithm testing for line tracking. Small competitions or demonstrations: Set up custom tracks to compare tuning and performance across different sensor configurations. Important notes This product is a loose part kit and requires assembly by the user. Batteries are not included. Use 2 AA batteries to supply the required 3 V. Allow slight measurement variances of about 1 to 2 cm due to manual measurement. Slight color differences may occur due to display settings. The intelligent D25 Tracking Car kit offers a practical, compact platform for learning sensorbased navigation and basic robotics construction while supporting for a range of educational and hobbyist activities.