{"product_id":"d2-5-diy-kit-intelligent-tracking-line-car-electronic-production-assembly-smart-car-diy-soldering-practice-kit-school-practice","title":"D2-5 DIY Intelligent Tracking Line Car Electronic Production Assembly","description":"\u003cp\u003eDiscover the D2-5 DIY Intelligent Tracking Line Car Electronic Production Assembly — a standout hobbies \u0026amp; creative arts pick featuring adjustable, compact design for dependable, everyday performance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cp\u003eBrand Name: Aideepen\u003c\/p\u003e\u003cp\u003eDIY Supplies: Electrical\u003c\/p\u003e\u003cp\u003eElectronic: No\u003c\/p\u003e\u003cp\u003eMaterial: Plastic\u003c\/p\u003e\u003cp\u003eSemi-finishedproduct: No\u003c\/p\u003e\u003cp\u003eProduct Features:\u003c\/p\u003e\u003cp\u003e1. Automatic Line Tracking: Precise photoelectric sensing technology ensures stable operation along a 15mm black track.\u003c\/p\u003e\u003cp\u003e2. DIY Maker Kit: Ideal for experimental teaching, fostering hands-on skills, and experiencing the joy of assembling from scratch.\u003c\/p\u003e\u003cp\u003e3. Efficient Voltage Comparison: Utilizes LM393 chip for high sensitivity, rapid response, and precise control\u003c\/p\u003e\u003cp\u003e4. User-Friendly Design: Powered by two AA batteries only; compact board size for easy portability and operation\u003c\/p\u003e\u003cp\u003e5. Adjustable Sensitivity: Standardize photoresistor and LED soldering height to customize tracking sensitivity for optimal performance\u003c\/p\u003e\u003cp\u003eProduct Specifications:\u003c\/p\u003e\u003cp\u003eProduct Name: Smart Car Kit\u003c\/p\u003e\u003cp\u003eSupply Voltage: 3V (Kit does not include batteries; purchase two AA batteries separately, recommended: South孚)\u003c\/p\u003e\u003cp\u003eBoard Dimensions: 7.2 × 10.5 cm\u003c\/p\u003e\u003cp\u003eMain Control Chip: LM393 Voltage Comparator Chip\u003c\/p\u003e\u003cp\u003eWorking Principle:\u003c\/p\u003e\u003cp\u003eThe LM393 continuously compares the readings from both photoresistors. When imbalance occurs (e.g., one side detects black track), it immediately stops the corresponding motor while accelerating the opposite motor. This corrects the car's direction, restoring it to the correct path. This closed-loop control enables rapid and sensitive response.\u003c\/p\u003e\u003cp\u003eNotes:\u003c\/p\u003e\u003cp\u003eThe height of the photoresistor and LED under the front chassis must be appropriate. They should be parallel and positioned approximately 0.2-0.4 cm above the ground (refer to the image for clarity). Sensitivity largely depends on the precision of soldering at this point.\u003c\/p\u003e\u003cp\u003eInstalling the motor gear assembly may prove challenging. A welding installation video will be released later for reference.\u003c\/p\u003e\u003cp\u003eOn a white surface, a 15mm-wide black track is marked. The line-following car can automatically navigate along this black track, maintaining its course regardless of how the track curves. Light reflects differently off white and black surfaces. Here, a red LED serves as the light source. Light reflected off the ground onto the photoresistor allows detection of its resistance change to determine if the car is traveling on the white area.\u003c\/p\u003e\u003cp\u003eIf the black track is detected, indicating the car has veered off course, the motor on that side will slow down or even stop. The corresponding green LED will turn off, driving the car to move in the opposite direction. This ensures the car always stays on the track.\u003c\/p\u003e\u003cp\u003eShipping List:\u003c\/p\u003e\u003cp\u003eSmart Car Kit x1\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003ch4\u003eQ: What is the D2-5 DIY Intelligent Tracking Line Car Electronic?\u003c\/h4\u003e\u003cp\u003eA: The D2-5 DIY Intelligent Tracking Line Car Electronic is a quality hobbies \u0026amp; creative arts pick. Automatic Line Tracking: Precise photoelectric sensing technology ensures stable operation along a 15mm black track.\u003c\/p\u003e\u003ch4\u003eQ: What is the D2-5 DIY Intelligent Tracking Line Car Electronic made of?\u003c\/h4\u003e\u003cp\u003eA: The D2-5 DIY Intelligent Tracking Line Car Electronic is made from Plastic Semi-finishedproduct, measuring 7.2.\u003c\/p\u003e\u003ch4\u003eQ: Why choose the D2-5 DIY Intelligent Tracking Line Car Electronic?\u003c\/h4\u003e\u003cp\u003eA: The D2-5 DIY Intelligent Tracking Line Car Electronic stands out in our hobbies \u0026amp; creative arts range — Efficient Voltage Comparison: Utilizes LM393 chip for high sensitivity, rapid response, and precise control 4.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the D2-5 DIY Intelligent Tracking Line Car Electronic?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The D2-5 DIY Intelligent Tracking Line Car Electronic is a quality hobbies \u0026amp; creative arts pick. 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