HC-SR04 Ultrasonic Distance Sensor Module

Description

HC-SR04 Ultrasonic Distance Sensor Module

The HC-SR04 Ultrasonic Distance Sensor Module is a reliable, easy-to-use sensor that accurately measures the distance between the module and objects using ultrasonic waves. This sensor is perfect for a variety of electronics projects, especially in robotics, IoT, and automation systems. It measures distances from 2 cm to 4 meters with impressive precision and is compatible with various development boards, such as Arduino, Raspberry Pi, and ESP32.

This module works by emitting ultrasonic waves through its transmitter, waiting for the echo to return from any object in its path. The time it takes for the echo to return allows the module to calculate the distance. Its non-contact measurement method makes it ideal for situations where direct contact with the object is not feasible.

Key Features:

• Measurement Range: 2 cm to 4 meters, ideal for both short-range and longer-range distance sensing.

• Operating Voltage: Runs on a 5V DC power supply, making it fully compatible with Arduino, Raspberry Pi, and ESP32.

• Detection Angle: The module detects within a 15-degree cone, ensuring accurate measurements within its field of view.

• Accuracy: Offers high accuracy with a ±3mm margin of error, making it suitable for precise applications.

• Simple Integration: It integrates easily with development boards, requiring just two main pins: Trigger (input) and Echo (output).

• Durability: Designed with robustness in mind, the module functions well in various environments, both indoors and outdoors.

Applications:

• Robotics: Used for obstacle avoidance, distance measurement, and autonomous navigation. It’s an essential component for any robot aiming to interact with its surroundings.

• IoT Projects: The HC-SR04 plays a crucial role in smart systems like proximity sensors, object detection, and level sensing in IoT devices.

• Automated Systems: Ideal for applications like parking sensors, material handling, and water level monitoring in industrial or home automation systems.

• Educational Projects: Perfect for hands-on learning in maker projects and educational kits, helping students understand sensor technology, programming, and distance measurement.

How It Works:

The HC-SR04 module uses ultrasonic waves to measure the distance between the sensor and an object. When triggered, the module emits a pulse, and upon hitting an object, the wave bounces back to the sensor. The time delay between the emission and the echo helps calculate the distance, using the formula:
Distance = (Time × Speed of Sound) / 2.

Why Choose the HC-SR04 Ultrasonic Sensor Module?

• Cost-Effective: The HC-SR04 offers affordable distance sensing without compromising on quality. It’s the perfect choice for both professionals and hobbyists.

• Versatile: Whether you’re building a robot, a smart home device, or an industrial automation system, the HC-SR04 adapts to various uses.

• Compatible: Works seamlessly with a wide range of development boards including Arduino, Raspberry Pi, and ESP32 for easy integration into your existing projects.

Specifications:

• Supply Voltage: 5V DC

• Range: 2 cm to 4 meters

• Accuracy: ±3mm

• Beam Angle: 15 degrees

• Interface: Trigger and Echo Pins

• Dimensions: 45mm x 20mm x 15mm

The HC-SR04 Ultrasonic Distance Sensor Module is perfect for anyone looking to incorporate distance sensing into their electronics projects. With its precision, ease of use, and affordability, it’s an ideal choice for engineers, educators, and hobbyists.