Smart Car using Arduino

A simple Arduino-based smart car controlled via an L298N motor driver. This project includes functions for moving the car forward, backward, turning left/right, and stopping.

Hardware Components

• Arduino Board (Uno/Nano)
• L298N Motor Driver
• DC Motors (x2)
• Chassis & Wheels
• Power Supply (Battery)

Pin Configuration

L298N Pin	Arduino Pin
IN1	3
IN2	5
IN3	6
IN4	9

Features

• Forward Movement: Moves the car forward by a specified distance (cm).
• Backward Movement: Moves the car backward by a specified distance (cm).
• Left/Right Turn: Rotates the car by a specified angle (degrees).
• Stop Function: Immediately stops all motor movements.

Functions

• stopCar() – Stops all motors.
• forward(d) – Moves the car forward by distance d (cm).
• backward(d) – Moves the car backward by distance d (cm).
• turnRight(deg) – Turns the car right by deg degrees.
• turnLeft(deg) – Turns the car left by deg degrees.

Setup & Execution

1. Upload the code to the Arduino board.
2. The car performs a 360° left turn once in the loop().
3. Adjust dt (delay time) and itr (iteration count) as needed.

Formulas Used

• Forward/Backward Delay:
  delay = (distance / speed) * 1000
  (Speed: ~132.8 cm/s forward, ~130.083 cm/s backward)

• Turning Delay:
  delay = (degrees / rotation_rate) * 1000
  (Rotation Rate: ~395°/s left, ~411°/s right)

License

This project is open-source under the MIT License.

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Happy Building! 🚗💨