Ultrasonic Distance Sensor Module – HC-SR04

Description

• Sensor Type: Ultrasonic
• Operating Voltage: Typically powered with 5V DC, making it compatible with common microcontrollers and power sources.
• Detection Range: Offers precise distance measurements ranging from 2 centimeters (0.02 meters) to 400 centimeters (4.0 meters), providing a wide range of detection capabilities.
• Static Current: Consumes minimal static current, usually less than 2mA, making it suitable for low-power and battery-powered applications.
• Output: Digital Sensor that provides a high-level output (5V) when a signal is detected.
• High Precision: Delivers accurate distance measurements with an accuracy of up to 0.3 centimeters (3 millimeters), ensuring reliable and consistent results.
• Operating Principle: The HC-SR04 emits a burst of eight 40kHz square wave pulses and measures the time it takes for the ultrasonic signal to bounce off an object and return (return echo). The distance is calculated based on the time taken, using the speed of sound as a reference.
• Versatile Use: Suitable for a wide range of applications, including obstacle detection, robotics, liquid level measurement, proximity sensing, and more.
• User-Friendly: Easy to interface with microcontrollers, such as Arduino, Raspberry Pi, and others, using simple trigger and echo pins.
• Compact Design: Features a compact and lightweight design, allowing for convenient integration into various projects, from small DIY setups to complex systems.
• Visual Indicators: Often equipped with LED indicators that illuminate when the sensor is actively measuring or detecting an object, aiding in diagnostics and real-time feedback.