Smart Tracked Wheel Robotics Car - Ultimate STEM Learning Platform

I. Product Overview
This intelligent tracked-wheel robotics car combines cutting-edge technology with endless fun. Built around the powerful ESP32 WROOM32 mainboard and enhanced with ESP32 L293D motor drivers, it delivers superior control and dynamic performance. Packed with advanced features like 180° servo-assisted obstacle avoidance, ultrasonic following, and 3-channel line tracking, this STEM robot opens exciting possibilities for tech exploration.

II. Core Technologies

1. ESP32 WROOM32 Mainboard
   ✓ Dual-core 240MHz processor handles complex tasks
   ✓ Multiple interfaces: GPIO/UART/SPI/I2C for expansion
   ✓ Dual wireless: Wi-Fi & Bluetooth connectivity

2. L293D Motor Driver System
   ✓ 2A current output for stable track-wheel movement
   ✓ Bidirectional motor control for precise maneuvers

3. 180° Servo Obstacle Avoidance
   ✓ HC-SR04 ultrasonic sensor with 2cm-400cm detection
   ✓ G90 servo enables 180° scanning for full coverage

4. Smart Following System
   ✓ Auto-follow mode maintains preset distances
   ✓ Adjustable tracking range (3mm precision)

5. 3-Channel Line Tracking
   ✓ Multi-mode path following (straight/curved)
   ✓ Programmable logic for custom patterns

III. Key Features
✓ All-Terrain Design
• Reinforced track wheels for rough surfaces
• High-impact ABS construction

✓ Developer-Friendly
• Multi-language support (Arduino/MicroPython)
• Free tutorials & sample codes included

✓ Expandable Platform
• Multiple expansion ports for sensors/modules
• Open-source architecture for customization

✓ Interactive Learning
• 6-in-1 functionality (Avoid/Follow/Track/Custom)
• Programmable challenges & game modes

IV. Technical Specifications

V. Package Includes
• Assembled tracked-wheel chassis
• ESP32 WROOM32 mainboard with L293D driver
• HC-SR04 ultrasonic module + G90 servo
• 3-channel line tracking sensor array
• USB programming cable
• Quick start guide

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