Arduino-Compatible 4WD Smart Robot Car Kit | STEM Educational Programmable Robot for Coding & Electronics Learning | Ultrasonic Obstacle Avoidance, Infrared Line Tracking & Bluetooth Remote Control | Expandable with Wi-Fi & IoT Modules

This 4WD Smart Robot Car Kit is a versatile and educational robotics platform designed for students, makers, and educators seeking a complete hands-on experience in STEM learning, robotics programming, and automation. It combines ultrasonic obstacle avoidance, infrared line tracking, and Bluetooth remote control into one fully programmable system.

Built on a sturdy four-wheel-drive chassis, the robot features four high-torque DC motors for stable, powerful movement across multiple terrains. The ultrasonic module, mounted on a servo, continuously scans its surroundings to detect and avoid obstacles intelligently, while the three infrared sensors at the front read black-and-white contrast lines to follow predefined paths with precision.

The onboard L298N dual motor driver provides PWM control for smooth speed and directional management. The system is powered by a safe 6–9V DC power supply with built-in protection circuits to ensure long-term reliability and classroom safety.

Fully compatible with Arduino IDE, the kit supports both text-based coding (C/C++) and graphical block programming via Mixly and Scratch. This dual-environment design allows both beginners and advanced learners to explore topics such as motion control, feedback loops, and automation logic. Students can experiment with real-time control systems and observe immediate feedback through interactive projects.

The modular design enables quick assembly with labeled connectors — no soldering required — making it ideal for repetitive classroom use. The open-source architecture allows expansion with Wi-Fi modules, cameras, or IoT sensors, providing opportunities to explore AI applications, environmental monitoring, or smart navigation.

Teachers can use this robot to explain fundamental principles of mechatronics, control theory, and artificial intelligence. Students learn how to read sensor inputs, process logic, and output motor responses, transforming theoretical lessons into real-world robotics experience.

Combining durability, versatility, and programmability, this robot car offers the perfect gateway to understanding modern automation, IoT systems, and robotics engineering — all in a single interactive kit.

Ultrasonic Obstacle Avoidance
Equipped with a high-precision ultrasonic sensor on a servo motor, the robot measures distances in real-time to detect obstacles and avoid collisions. Students explore how sonar-based sensing works and how to translate analog readings into automated motion responses — a foundation for autonomous driving systems.

Triple Infrared Line Tracking
Three infrared sensors provide accurate path detection, enabling precise navigation on complex tracks. Learners gain an understanding of signal processing, light reflection, and conditional logic while experimenting with dynamic line-following algorithms.

Bluetooth Wireless Control
The built-in Bluetooth module allows wireless control via smartphones or PCs. Students can design custom remote-control apps and integrate wireless commands into their Arduino code, bridging traditional robotics and mobile IoT applications.

Safe Power and Modular Structure
The 6–9V DC power system features reverse polarity and overcurrent protection. The transparent acrylic frame includes clearly labeled ports for easy plug-and-play connections, promoting safe, repeatable use in STEM classrooms.

Comprehensive STEM Educational Value
Combining mechanics, electronics, and software, this kit builds skills in programming logic, engineering design, and problem-solving. It’s ideal for teaching automation, mechatronics, and AI fundamentals through practical projects.

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