ahmedyar7/ultrasonic-radar-sensor

Ultrasonic Sensor with Radar is our END Semester Project of Digital Logic Design

UltraSonic Sensor with Radar

Contributors ✏

Abstract 🌌

This project outlines the development of an ultrasonic radar system using an Arduino Uno, an ultrasonic sensor (HC-SR04), and a servo motor. This radar can detect objects within its range and visualize them using Processing software.

Components and Materials: 🔨⚙️

Hardware: 🔧

• Arduino Uno
• SG90 Micro-servo motor
• Ultrasonic Sensor - HC-SR04 (Generic)
• Jumper wires
• Hot glue gun (optional)

Software: 💻

• Arduino IDE (Integrated Development Environment)
• Processing IDE

Methodology 🧾

This ultrasonic radar system operates by:

1. Mounting the Ultrasonic Sensor: 📌

The HC-SR04 sensor is attached to the servo motor using hot glue (or a more permanent method) to enable scanning in different directions.

2. Sensor Connection: 📡

The HC-SR04 connects to the Arduino Uno as follows:
• VCC (sensor) to 5V (Arduino) ⚡
• GND (sensor) to GND (Arduino)
• TRIG (sensor) to pin 2 (Arduino) - trigger pin.
• ECHO (sensor) to pin 3 (Arduino) - echo pin.

3. Servo Motor Connection: 🔌

The servo motor connects to the Arduino Uno as follows:
• Red wire (servo) to 5V (Arduino) – power.
• Brown wire (servo) to GND (Arduino) – ground
• Orange wire (servo) to pin 4 (Arduino) - control pin.

4. Software Functionality 👩🏻‍💻

Arduino Code 📝

• Defines a function to measure distance using the ultrasonic sensor's time-of-flight principle.
• Implements a loop to continuously:
• Rotate the servo motor from a start angle to an end angle (scanning range).
• Measure the distance to any object detected by the sensor in its path.
• Send this distance data to the Processing software.

Processing Code: 🌐

• Receives distance data from the Arduino via the serial port.
• Visualizes the radar display based on the received distances:
• Green lines represent no object detected (distance beyond a threshold).
• Red lines represent object detected (distance within the threshold).

Conclusion 🏁

This project demonstrates the capabilities of Arduino in building a simple yet practical ultrasonic radar system. The project provides a valuable learning experience in interfacing sensors, motors, and software for real-world applications.