Skip to Content
  1. All products
  2. Kits
  3. Robotic Kits
  4. Robot 4WD Smart Robot Car Chassis Kit 1 Layer for Arduino With 4 Speed Encoder (Rounded Edges)
  5. Robotic Kits
Pricelist: Default Pricelist
Pricelist: Default Pricelist
Robot 4WD Smart Robot Car Chassis Kit 1 Layer for Arduino With 4 Speed Encoder (Rounded Edges)

Robot 4WD Smart Robot Car Chassis Kit 1 Layer for Arduino With 4 Speed Encoder (Rounded Edges)

The 4WD Smart Robot Car Chassis Kit is an ideal platform for building DIY robotics and automation projects. Designed with simplicity and flexibility in mind, this kit provides a complete mechanical base for creating intelligent robotic vehicles. It features a sturdy acrylic chassis combined with four DC geared motors, allowing smooth movement and reliable performance in various applications. The kit includes four independently driven wheels, enabling better traction, directional control, and stability. With its modular design, the chassis can be easily expanded by adding sensors, microcontrollers, wireless modules, and other electronic components. This makes it perfect for developing robots with functions such as obstacle avoidance, line tracking, and remote control. Additionally, the included speed encoder allows users to measure wheel rotation and implement feedback systems for precise speed and distance control. This makes the kit suitable for both beginners learning robotics and advanced users developing closed-loop control systems.

Package Includes:

  • 1 × Acrylic Car Chassis
  • 4 × DC Geared Motors
  • 4 × Wheels
  • 1 × Speed Encoder Disk Set
  • 1 × Screw Pack (nuts, bolts, and spacers)
47.25 AED 47.25 AED (Tax included)

Add to cart
Terms and Conditions
30-day money-back guarantee
Shipping: 2-3 Business Days

Features:

  • 4WD (four-wheel drive) robotic car chassis
  • Simple mechanical structure for easy assembly
  • Durable acrylic platform
  • Four DC motors for strong driving power
  • Good directional control and stability
  • Expandable design for adding sensors and modules
  • Includes speed encoder for motion feedback
  • Supports closed-loop speed and distance control systems
  • Compatible with Arduino, ESP32, and other development boards
  • Ideal for DIY robotics and educational projects

Principle of Work:

The robot car uses four DC geared motors, typically grouped into left and right sides. Each side (two motors) is controlled together using a motor driver. By controlling the direction and speed of the left and right motor groups independently, the robot can move forward, backward, and turn.

When both sides move forward, the robot moves straight. When one side moves forward and the other backward, the robot rotates in place. Speed control can be achieved using PWM signals from the microcontroller.

The encoder can optionally provide feedback to measure speed and distance for more advanced control systems.

Mechanical Layout:

  • Acrylic Chassis: Main structural base
  • 4 × DC Motors: Two motors per side (left & right)
  • Wheels: Provide movement and traction
  • Encoder Disk: Measures rotation

Applications:

  • DIY robotics projects
  • Line-following robots
  • Obstacle avoidance robots
  • Remote control cars
  • Autonomous navigation systems
  • STEM education

Circuit (4WD using L298N Driver):

L298N H-Bridge Arduino 4WD

The 4 motors are grouped into two channels using an H-bridge motor driver (like L298N):

  • Left Side Motors (2 motors in parallel): Connect to OUT1 & OUT2
  • Right Side Motors (2 motors in parallel): Connect to OUT3 & OUT4
  • IN1, IN2: Control LEFT motors direction
  • IN3, IN4: Control RIGHT motors direction
  • ENA: Speed control for LEFT motors (PWM)
  • ENB: Speed control for RIGHT motors (PWM)
  • 12V: Battery input
  • GND: Common ground with Arduino

Connecting with Arduino First Time

  • Connect IN1 → Pin 7
  • Connect IN2 → Pin 6
  • Connect IN3 → Pin 5
  • Connect IN4 → Pin 4
  • Connect ENA → Jumper
  • Connect ENB → Jumper
  • Connect motor driver GND → Arduino GND
  • Power motors using external battery (7–12V)

Code (4WD Control):

int IN1 = 7;
int IN2 = 6;
int IN3 = 5;
int IN4 = 4;


void setup() {
  pinMode(IN1, OUTPUT);
  pinMode(IN2, OUTPUT);
  pinMode(IN3, OUTPUT);
  pinMode(IN4, OUTPUT);

}

void loop() {

  // Move Forward
  digitalWrite(IN1, HIGH);
  digitalWrite(IN2, LOW);
  digitalWrite(IN3, HIGH);
  digitalWrite(IN4, LOW);
  delay(2000);

  // Stop
  digitalWrite(IN1, LOW);
  digitalWrite(IN2, LOW);
  digitalWrite(IN3, LOW);
  digitalWrite(IN4, LOW);
  delay(1000);

  // Move Backward
  digitalWrite(IN1, LOW);
  digitalWrite(IN2, HIGH);
  digitalWrite(IN3, LOW);
  digitalWrite(IN4, HIGH);
  delay(2000);

  // Turn Right
  digitalWrite(IN1, HIGH);
  digitalWrite(IN2, LOW);
  digitalWrite(IN3, LOW);
  digitalWrite(IN4, HIGH);
  delay(1500);

  // Turn Left
  digitalWrite(IN1, LOW);
  digitalWrite(IN2, HIGH);
  digitalWrite(IN3, HIGH);
  digitalWrite(IN4, LOW);
  delay(1500);
}

Technical Details:

  • Car Dimensions: 260 mm × 140 mm
  • Material: Acrylic
  • Wheel Diameter: 70 mm
  • Weight: 564 g
  • Drive Type: 4WD
  • Motor Type: DC geared motors
  • Control Method: Dual-channel motor driver (L298N)

Resources:

Comparisons:

  1. Better Stability: 4 motors provide balanced movement
  2. Higher Torque: More power than 2WD systems
  3. Improved Control: Independent left/right control
  4. Expandable: Supports advanced robotics features
  5. Versatile: Suitable for beginners and advanced users