2WD Arduino Smart Robot Car Kit – Obstacle Avoidance & Tracking

The 2WD Arduino Smart Robot Car Kit is a complete DIY robotics platform designed for learning Arduino programming, motor control, sensors, autonomous navigation, obstacle avoidance, and robot-car development.

The kit combines an UNO R3 controller, V5 expansion shield, L298N dual motor driver, SG90 servo motor, two DC geared motors, 2WD chassis, encoder disks, battery holder, wheels, and the required mechanical components to build a programmable mobile robot.

It is an excellent hands-on platform for students, makers, schools, universities, STEM laboratories, and anyone starting with Arduino robotics.

Technical Specifications

• Robot Type: 2WD Programmable Robot Car
• Controller: UNO R3 Compatible Board
• Motor Driver: L298N Dual H-Bridge
• Drive System: 2-Wheel Drive
• Motors: 2 × DC Geared Motors
• Main Wheels: 2
• Support Wheel: 1 × Caster Wheel
• Servo Motor: SG90 Micro Servo
• Expansion Board: V5 Sensor / I/O Shield
• Encoder Disks: 2 × 20-Line Encoder Disks
• Battery Holder: 4-Cell Battery Box
• Power Switch: Rocker Switch
• Chassis: Robot Car Chassis
• Programming Platform: Arduino IDE Compatible
• Assembly: DIY / Unassembled Kit
• Programmable: Yes
• Expandable: Yes

Learn Arduino Robotics

The kit provides a practical introduction to programming a moving robot with an Arduino-compatible controller.

Students can learn how software commands are translated into physical movement, including:

• Move Forward
• Move Backward
• Turn Left
• Turn Right
• Stop
• Control Motor Speed
• Read Sensors
• React to Obstacles

More advanced programs can combine sensor readings, timing, motor control, and decision-making to create autonomous robot behaviors.

L298N Dual Motor Driver

The included L298N dual H-bridge motor driver allows the UNO R3 controller to operate the two DC geared motors.

Because a microcontroller cannot safely supply the current required by the motors directly, the L298N acts as the power interface between the controller and motors.

It enables independent control of the two motors for:

Forward / Reverse Rotation

Left / Right Steering

Motor Stop

PWM Speed Control

By driving the left and right motors independently, the robot can steer without requiring a conventional mechanical steering system.

SG90 Servo Motor

An SG90 micro servo motor is included for projects requiring controlled angular movement.

In a typical obstacle-avoidance robot configuration, the servo can be used to rotate a compatible distance sensor left and right so that the robot can inspect its surroundings before selecting a direction.

The SG90 can also be reused for other robotic mechanisms and experiments.

Obstacle Avoidance

The platform can be configured for autonomous obstacle-avoidance experiments.

With a compatible distance sensor installed, the robot can measure the distance to objects in front of it. The Arduino program can then determine whether to continue moving, stop, reverse, or change direction.

A servo-mounted sensor can further allow the robot to scan different directions before choosing a clearer path.

Encoder Disks

The kit includes 2 × 20-line encoder disks that can be mounted with the drive wheels/motors.

When used with suitable optical or infrared encoder sensors, these disks can provide wheel-motion feedback for experiments involving:

• Wheel Speed Measurement
• Distance Estimation
• Motor Speed Comparison
• Basic Closed-Loop Motor Control
• Odometry Experiments

Please note that the encoder disks themselves require suitable sensing hardware to generate an electronic feedback signal.

V5 Expansion Shield

The included V5 shield simplifies connection of sensors, servos, and other peripherals to the UNO R3.

This makes the robot easier to expand with additional modules such as:

• Ultrasonic Distance Sensors
• Infrared Tracking Sensors
• Bluetooth Modules
• WiFi Modules
• Buzzer Modules
• LEDs
• Additional Servos
• Environmental Sensors

This expandability makes the chassis useful beyond the initial robot-car project.

Tracking & Autonomous Robot Projects

The platform can also be used as the mechanical and electronic base for tracking and line-following projects when the appropriate tracking sensors are installed.

Students can program algorithms that read sensor information and continuously adjust the speed of the left and right motors to control the robot's path.

This provides a practical introduction to feedback systems, autonomous navigation, sensors, control algorithms, and robotics programming.

STEM & Educational Use

This kit is particularly suitable for hands-on STEM education because it combines several important engineering concepts in one project:

• Arduino Programming
• Electronics
• DC Motor Control
• PWM Speed Control
• Servo Control
• Sensor Integration
• Mechanical Assembly
• Autonomous Navigation
• Embedded Systems
• Basic Robotics Algorithms

Students can begin with simple motor-control programs and gradually develop more advanced autonomous robot functions.

Expandable Robotics Platform

The robot does not have to remain in its original configuration.

The UNO-compatible architecture allows users to add compatible modules for projects such as:

• Bluetooth-Controlled Robot
• WiFi-Controlled Robot
• Line-Following Robot
• Obstacle-Avoiding Robot
• Remote-Controlled Vehicle
• Sensor-Mapping Robot
• Educational Autonomous Vehicle
• IoT Robot

Actual functionality depends on the additional sensors/modules installed and the program uploaded to the controller.

Applications

Ideal for Arduino learning, robotics courses, STEM education, school and university projects, autonomous robot experiments, motor-control training, sensor programming, electronics laboratories, DIY robotics, embedded-system development, coding workshops, and engineering demonstrations.

Important Note

This is a DIY robot kit that requires assembly and programming. Batteries and any components not specifically listed in the package contents should not be assumed to be included.

The supplied 20-line encoder disks do not measure wheel movement by themselves. Compatible encoder sensors are required if wheel-speed feedback is needed.

Likewise, obstacle avoidance and tracking functions require the appropriate sensors and software. The exact functionality available out of the box depends on the sensor modules included with your particular kit.

Do not connect the DC motors directly to the UNO R3 GPIO pins. Use the supplied L298N motor driver for motor control.

Package Includes

• 1 × Robot Car Chassis
• 2 × Robot Car Wheels
• 2 × DC Geared Motors
• 2 × 20-Line Encoder Disks
• 4 × Acrylic Motor Fasteners
• 1 × Caster Wheel
• 1 × 4-Cell Battery Box
• 1 × Rocker Power Switch
• 1 × V5 Expansion Shield
• 1 × UNO R3 Compatible Board
• 1 × SG90 Micro Servo Motor
• 1 × FPV Component / Module
• 1 × L298N Dual Motor Driver
• 1 × Set of Screws, Nuts & Assembly Hardware