HC-SR04 Ultrasonic Sensor Module - Proximity Detection

HC-SR04 Ultrasonic Sensor Module for Accurate Distance Measurement

Product Overview

The HC-SR04 Ultrasonic Sensor Module is an advanced sensor for distance measurement and proximity detection. Using ultrasonic waves, it measures distances with high accuracy, making it a crucial component in robotics, automation, and security systems. Its compact size and simple interface allow seamless integration into various projects, especially for Arduino and Raspberry Pi users. The HC-SR04 is perfect for applications requiring obstacle detection, ranging, or level sensing.

Features

• High accuracy and reliability for distance measurement
• Low power consumption (15mA)
• Compact and lightweight design
• Compatible with most microcontroller platforms, including Arduino and Raspberry Pi
• Simple 4-pin interface for easy connectivity
• Wide range of applications in robotics and automation

Applications

• Obstacle detection in robotics
• Automatic door systems
• Parking assistance systems
• Level sensing in tanks and containers
• Security systems for motion detection
• Educational projects for students

User Guide / How to Use

To use the HC-SR04 Ultrasonic Sensor, connect its 4 pins to your microcontroller:

• VCC: Connect to a 5V power supply
• GND: Connect to ground
• Trig: Send a 10µS high pulse to initiate measurement
• Echo: Receive the signal back to calculate distance

Use an Arduino or similar board to program the sensor for your application. The formula for distance calculation is:

Distance (cm) = (Duration of Echo pulse / 2) / 29.1

Documentation

Refer to the official datasheet and user manual for in-depth technical details and connection diagrams. You can download the documentation from the product page.

Frequently Asked Questions (FAQs)

• Q: What is the maximum range of the HC-SR04 sensor?
  A: The maximum range is 400 cm, and the minimum is 2 cm.
• Q: Is the HC-SR04 compatible with Arduino?
  A: Yes, it is fully compatible with Arduino and other microcontroller platforms.
• Q: Can this sensor detect objects in all directions?
  A: No, it has a 15º measuring angle for accurate detection.
• Q: Does it work outdoors?
  A: The sensor works best indoors but can operate outdoors with limited accuracy due to environmental factors.

Benefits

• Cost-effective and reliable solution for distance measurement
• Simple to integrate into any microcontroller project
• Enhances accuracy in robotics and automation
• Provides hands-on learning for students in STEM education
• Compact size ensures space-saving designs