Ultrasonic Sensor

HC-SR04 Ultrasonic Distance Sensor Module

Product Description
The HC-SR04 Ultrasonic Sensor is a reliable and widely used distance measuring module designed for robotics, automation, and embedded system projects. It works by transmitting ultrasonic sound waves and measuring the time taken for the echo to return after hitting an object, allowing accurate distance measurement.

This sensor module provides stable performance with a measuring range of up to 400 cm and high accuracy. It can be easily interfaced with microcontrollers such as Arduino, ESP32, Raspberry Pi, and other development boards using a simple trigger and echo interface.

Due to its low cost, ease of use, and precise measurement capability, the HC-SR04 is commonly used in obstacle detection, robotic navigation, parking sensors, smart automation systems, and IoT-based monitoring projects.

Key Features
• Accurate Distance Measurement using Ultrasonic Waves
• Measuring Range from 2 cm to 400 cm
• High Precision and Stable Performance
• Simple 4-Pin Interface (VCC, Trig, Echo, GND)
• Low Power Consumption
• Easy Integration with Arduino, ESP32, Raspberry Pi, and other Microcontrollers
• Ideal for Robotics, Automation, and IoT Projects

Technical Specifications
Operating Voltage: 5V DC
Operating Current: ~15 mA
Working Frequency: 40 kHz
Measuring Range: 2 cm – 400 cm
Measuring Angle: < 15°
Distance Accuracy: ±3 mm
Interface: Trigger and Echo Pins
Operating Temperature: -15°C to +70°C
Module Dimensions: Approximately 45 mm × 20 mm