HC-SR04 Ultrasonic Sensor

HC-SR04 Ultrasonic Sensor

The HC-SR04 Ultrasonic Sensor is a reliable and cost-effective distance measurement module designed for Arduino, Raspberry Pi, microcontroller, robotics, and DIY electronics projects. It uses ultrasonic waves to accurately measure the distance between the sensor and an object without physical contact.

With a typical measurement range of 2 cm to 400 cm, the HC-SR04 is ideal for applications such as obstacle detection, robotic navigation, automatic doors, parking sensors, liquid-level monitoring, and smart automation systems.

Key Features

• Non-contact distance measurement using ultrasonic technology
• Measurement range: Approximately 2 cm – 400 cm
• High accuracy: Suitable for a wide range of electronics and robotics applications
• Simple 4-pin interface: VCC, Trig, Echo, and GND
• Easy to integrate with Arduino, Raspberry Pi, ESP32, and other microcontrollers
• Compact and lightweight design
• Suitable for DIY, educational, prototyping, and professional projects

Technical Specifications

• Model: HC-SR04
• Operating Voltage: 5V DC
• Ultrasonic Frequency: 40 kHz
• Measuring Range: 2 cm – 400 cm
• Interface: 4-pin
• Pins: VCC, Trig, Echo, GND
• Detection Type: Non-contact
• Application: Distance and obstacle detection

Applications

The HC-SR04 Ultrasonic Sensor can be used in:

• Robot obstacle avoidance systems
• Arduino and Raspberry Pi projects
• Smart parking systems
• Automatic doors and gates
• Distance measurement projects
• Object detection systems
• Liquid-level monitoring
• Educational electronics projects
• IoT and automation prototypes

Package Includes

• 1 × HC-SR04 Ultrasonic Sensor Module

Build smarter projects with dependable distance sensing. The HC-SR04 offers an affordable and straightforward solution for measuring distance and detecting objects in a wide variety of electronic applications.