Obstacle Detector Car with One Sensor

This repository provides the necessary instructions and code to build an Arduino-based obstacle detection car using a single ultrasonic sensor to avoid obstacles.

Required Components

Here is the list of components you'll need for this project:

• Arduino Uno
• Motor Driver
• 4 DC Motors
• 1 Ultrasonic Sensor (HC-SR04)
• Car Chassis and Tyres
• Power Supply/Battery

Circuit Connections

Ultrasonic Sensor to Arduino:

• Sensor (Front):
  • Trig to pin 4
  • Echo to pin 7

Motor Driver to Arduino:

• Motor A (Front Left):
  • IN1 to pin 5
  • IN2 to pin 6
• Motor B (Back Left):
  • IN3 to pin 9
  • IN4 to pin 10

Power Supply:

• 12V to the motor driver
• Ground to battery ground

Code

The code for controlling the car based on obstacle distance detection from the ultrasonic sensor is provided in the obstacle_detector_car.ino file.