The HKD D2-1 Intelligent Tracking Car Kit is an educational DIY electronics kit designed for hands-on learning in robotics, electronics, and circuit design. This kit allows users to build a line-tracking car that follows black lines on a white surface using photoresistors and dual DC motors.
Equipped with an LM393 comparator IC and supporting electronic components, the kit provides an excellent introduction to sensor-based automation and the fundamentals of robotics. Its compact PCB, durable wheels, and efficient motors make it ideal for STEM education, hobby projects, and classroom demonstrations.
The kit requires basic assembly and soldering, giving learners practical experience with circuit building, motor control, and sensor applications. Once built, the car demonstrates automatic tracking and obstacle response, making it both fun and educational.
Features
- DIY intelligent line-following car kit for STEM learning
- Uses photoresistor sensors to detect and follow lines
- Powered by dual DC motors with smooth 40mm wheels and tires
- Built-in LM393 comparator IC for sensor signal processing
- Includes red and white LEDs for indicators
- Requires basic assembly and soldering (educational hands-on experience)
- Compact PCB design with stable performance
- Suitable for beginners, students, and robotics hobbyists
- Battery-powered (2 × AA batteries, not included)
- RoHS compliant electronic components
Specifications
- Part Number: HKD D2-1 Intelligent Tracking Kit
- Device Type: Line Following Robot Car
- PCB Size: 105 × 72 × 16mm
- Motors: 2 × DC Motors
- Wheels/Tires: 40mm (x2)
- IC: LM393 (DIP-8, with socket)
- Resistors: 51 ×4, 1K ×2, 100 ×2, 3.3K ×2
- Potentiometers: 10K (x2) adjustable
- Capacitors: 100 F (x2) electrolytic
- LEDs: 5mm Red (x2), 5mm White (x2)
- Transistors: S8550 (x2, TO-92)
- Switch: Self-locking push switch, 6×6mm
- Battery Holder: 2 × AA battery case (batteries not included)
- Other Components: Screws, nuts, screw caps, cables
- Material: High-quality PCB + durable mechanical parts
Applications
- STEM education and robotics learning
- DIY electronics and soldering practice
- Demonstrating line tracking and sensor-based automation
- Classroom teaching aids for electronics/robotics
- Hobbyist and DIY robotics projects
What's in the box
1 × LM393 Comparator IC (DIP-8)
1 × IC Socket (DIP-8)
2 × Electrolytic Capacitor (100 F)
2 × Potentiometer (10K, 103)
4 × Metal Film Resistor (51 )
2 × Metal Film Resistor (1K)
2 × Metal Film Resistor (100 )
2 × Metal Film Resistor (3.3K)
2 × Photoresistor (CDS5)
2 × Red LED (5mm)
2 × White LED (5mm)
2 × S8550 Transistor (TO-92)
1 × Self-Locking Switch (6×6mm)
2 × DC Motor
2 × Wheels (40mm)
2 × Tires (40mm)
2 × Gaster Screw (M5 × 20mm)
2 × Gaster Nut (M5)
2 × Gaster Screw Cap (M5)
4 × Cables (6mm)
1 × Battery Case (AA × 2, batteries not included)
1 × PCB Board (D2-1, 105×72×16mm)
