Product overview This smart robot car soldering kit is designed for school science projects and handson STEM learning. It teaches mechanical structure, basic electronics, sensor principles, automatic control, and soldering skills through a practical buildandtest activity. The kit is suitable for students, teenagers, beginners, and hobbyists. Key benefits Practical learning: Combines soldering practice with electronics and mechanical assembly to reinforce concepts through doing. Clear principles: Uses photoresistor sensors to detect differences in light reflectivity between white and black surfaces, allowing the car to discriminate direction and follow a track. Easy assembly: PCB connections are clearly mapped and labeled, making wiring straightforward and reducing assembly time for learners. projects: Create custom tracks using 1.5 to 2.0 centimeter black electrical tape on the floor to design complex routes and experiments. STEM skill development: Improves soldering technique, circuit understanding, sensor integration, and basic control logic. Functions and important attributes Detection method: Photoresistor based detection of reflected light to identify white and black surfaces and determine direction. Main components: Labeled PCB board and photoresistor sensors as the core learning elements; the kit focuses on soldering and electronic assembly. Track specification: Recommended track width is 1.5 to 2.0 centimeters when using black electrical tape for detection performance. Target users: Ideal for classroom use, afterschool clubs, hobbyists, and anyone learning introductory electronics and soldering. Learning outcomes: Practical experience in soldering, reading circuit layouts, understanding sensor feedback, and implementing simple automatic control. Use scenarios School science project: Assemble the kit in class to demonstrate sensor principles, circuit connections, and automatic control behavior as part of a lab exercise. Afterschool club or makerspace: Small groups can build and test different track layouts, compare results, and iterate on soldering and wiring techniques. Home STEM activity or holiday gift: An educational kit that encourages handson learning and creativity through custom track design and troubleshooting. What you get and why it stands out This kit focuses on teaching core skills rather than adding unnecessary complexity. The clearly labeled PCB and straightforward photoresistor principle make it accessible for firsttime solderers while still offering room for experimentation. Using simple materials like black electrical tape to create tracks keeps the project affordable and adaptable to many learning environments.