Radar System using Arduino and Ultrasonic Sensor

A radar system built with Arduino to detect objects using an ultrasonic sensor. The detected data is visualized in real-time using the Processing IDE.

🛠️ Components and Supplies

• SG90 Micro-Servo Motor
• Ultrasonic Sensor HC-SR04
• Arduino UNO

💻 Platforms Used

• Arduino IDE
• Processing IDE

⚙️ How It Works

• The ultrasonic sensor is mounted on the servo motor, which rotates to scan the surrounding area.
• The sensor scans within a range of up to 200 cm.
• Based on distance data:
  • Green lines are displayed if no object is within 40 cm.
  • Red lines appear when an object is detected within the threshold.
• Radar visuals are displayed using the Processing IDE.

🔌 Hardware Connections

Ultrasonic Sensor ↔ Arduino

• VCC → 5V
• GND → GND
• TRIG → Pin 2
• ECHO → Pin 3

Servo Motor ↔ Arduino

• RED → 5V
• BROWN → GND
• ORANGE → Pin 4

Note: Sensor is temporarily mounted on the servo using a glue gun.

💻 Software Implementation

Arduino IDE

• Reads distance using HC-SR04.
• Rotates the servo motor between predefined angles.
• Sends distance and angle data to the Processing IDE via serial communication.

Processing IDE

• Reads serial data from Arduino.
• Visualizes radar sweep.
• Changes radar color based on object detection (green/red lines).

📈 Outcome

• Real-time object detection and radar visualization.
• Successfully simulates a basic radar system for educational and prototyping purposes.

📌 Skills Demonstrated

• Embedded Systems Programming
• Sensor Integration
• Serial Communication
• Real-time Data Visualization
• Hardware Prototyping