Build Your Obstacle Avoiding Robot with Arduino UNO

Create an Obstacle Avoiding Robot using Arduino UNO, Ultrasonic Sensor HC-SR04, DC Motor (12V), Dual H-Bridge Motor Driver, and SG90 Micro Servo Motor for smooth obstacle detection and navigation.

Components Needed

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1. Ultrasonic Sensor HC-SR04 – Detects obstacles within a specified range.
2. Arduino UNO – Acts as the brain of the robot for processing sensor data.
3. DC Motor, 12V – Provides movement to the robot.
4. Dual H-Bridge Motor Driver – Controls motor movement and direction.
5. SG90 Micro Servo Motor – Enhances the robot’s agility by managing its steering and direction.
6. Breadboard (generic) – Provides a platform for wiring and testing connections.

Steps to Build

1. Connect the Ultrasonic Sensor HC-SR04:
   • VCC → 5V
   • GND → GND
   • TRIG → Pin 2
   • ECHO → Pin 3
2. Set Up the Arduino UNO:
   • Integrate with the Dual H-Bridge Motor Driver L293D for motor control.
3. Integrate the SG90 Micro Servo Motor for steering adjustments when obstacles are detected.
4. Connect DC Motors with the Dual H-Bridge Motor Driver for obstacle-avoiding movement.
5. Write the Code: Program Arduino UNO to process data from the ultrasonic sensor and control motor movement accordingly.
6. Test and Refine: Verify the robot’s ability to avoid obstacles efficiently in real-time.