HC-SR04 Ultrasonic Distance Sensor Module at Best Price

This HC-SR04 Ultrasonic Distance Sensor Range Finder is a very popular sensor that is found in many applications where it requires measuring distance and detecting objects.

The module has two eyes-like projects in the front which form the Ultrasonic transmitter and Receiver.  The HC-SR04 ultrasonic sensor uses sonar to determine the distance to an object like bats or dolphins do.

This HC-SR04 Ultrasonic Distance Sensor module is a transmitter, a receiver, and a control circuit in one single pack!! It has very handy and compact construction. It offers excellent range accuracy and stable readings in an easy-to-use package. Its operation is not affected by sunlight or black material like Sharp rangefinders are (although acoustically soft materials like cloth can be difficult to detect).

The HC-SR04 Ultrasonic Distance Sensor Module is a popular and widely used component in electronic projects and robotics. It utilizes ultrasonic waves to accurately measure distances between objects without physical contact.

The HC-SR04 Ultrasonic Distance Sensor  module consists of an ultrasonic transmitter, receiver, and control circuitry.

To measure distance, it emits ultrasonic pulses and calculates the time it takes for the pulses to bounce off an object and return to the sensor. This information is then used to compute the distance based on the speed of sound. The HC-SR04 module is easy to use, with simple interfacing through digital input and output pins.

The HC-SR04 Ultrasonic Distance Sensor compact size, high accuracy, and low cost make it ideal for applications such as obstacle detection, proximity sensing, and automated navigation systems.

The Trigger and the Echo pins are the I/O pins of this module and hence they can be connected to the I/O pins of the microcontroller/Arduino. When the receiver detects the return wave the Echo pin goes high for a particular amount of time which will be equal to the time taken for the wave to return back to the sensor.

Here are some common uses of the HC-SR04 Ultrasonic Distance Sensor Module listed in points:

1. Obstacle Detection: The sensor can be used in robots, vehicles, or home automation systems to detect obstacles in their path and avoid collisions.
2. Proximity Sensing: It can be employed to detect the presence or absence of objects within a certain range, useful for triggering events or activating devices when someone approaches or moves away.
3. Distance Measurement: The module can accurately measure distances between objects without physical contact, making it suitable for applications such as liquid level detection, object counting, or even as part of a parking assistance system.
4. Security Systems: It can be integrated into security systems to detect unauthorized movement within a defined area, triggering alarms or alert notifications.
5. Gesture Recognition: By analyzing changes in distance over time, the sensor can be used for basic gesture recognition, enabling hands-free control of devices or interfaces.
6. Industrial Automation: In industrial settings, the sensor can be used for tasks such as inventory management, monitoring machinery movement, or detecting the presence of objects on conveyor belts.
7. Smart Appliances: It can be integrated into various appliances to provide smart functionality, such as automatic faucets that turn on when hands are detected beneath them or smart lighting systems that adjust brightness based on occupancy.
8. Drone Navigation: HC-SR04 modules can aid drones in maintaining a safe distance from obstacles during flight, ensuring smooth navigation and avoiding collisions.
9. Assistive Technology: It can be used in assistive devices for the visually impaired to detect obstacles in their path and provide feedback to the user, enhancing their mobility and safety.
10. Education and DIY Projects: The sensor is commonly used in educational settings and DIY projects to teach principles of electronics, programming, and robotics due to its simplicity and versatility.

Ultrasonic Ranging Module HC-SR04 provides 2cm-400cm non-contact distance sensing capabilities, Ranging accuracy up to 3mm.

Wiring

+5V(positive)

Trig(control)

Echo(receive)

GND(negative)

Features :

1. Measures the distance within a wide range of 2cm to 400cm
2. Stable performance
3. Accurate distance measurement
4. High-density
5. Small blind distance

Package Includes:

1 x HC-SR04 Ultrasonic Distance Sensor Module