# Ultrasonic Module HC-SR04 Distance Measuring Sensor

- Link: https://robonixkart.com/product/ultrasonic-module-hc-sr04-distance-measuring-sensor/
- Published: 2026-10-02T08:54:36+00:00
- Author: admin

## **Ultrasonic Sensor – HC-SR04 Distance Measurement Module**

The **Ultrasonic Sensor HC-SR04** is a precise and reliable distance measuring module
designed for non-contact detection of objects using ultrasonic sound waves. Ideal
for a wide range of applications including robotics, automation, obstacle avoidance,
and smart systems, this sensor provides fast and accurate distance readings with
minimal power consumption.

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### **Product Specifications**

  |  **Feature** |  **Specification** |  
   |  Sensor Type |  Ultrasonic Distance Sensor |  
 |  Operating Voltage |  5V DC |  
 |  Operating Current |  15 mA |  
 |  Measuring Range |  2 cm to 400 cm |  
 |  Accuracy |  ±3 mm |  
 |  Frequency |  40 kHz |  
 |  Measuring Angle |  <15° |  
 |  Output Type |  Digital (Pulse Width) |  
 |  Interface |  4-pin: VCC, Trig, Echo, GND |  
 |  Response Time |  < 100 µs |  
 |  Power Consumption |  Low Power |  
 |  Dimensions |  45mm x 20mm x 15mm |  
 |  Communication |  Digital (Trigger/Echo Pins) |

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### **Key Features:**

 * **Accurate Distance Sensing**: Measures distances from 2 cm to 400 cm with a 
   margin of error as low as ±3 mm, ensuring high precision for robotics and automation
   tasks.
 * **Non-Contact Measurement**: Uses ultrasonic sound waves for safe, clean, and
   reliable distance sensing without physical contact.
 * **Fast Response Time**: Provides real-time feedback with a quick response, ideal
   for high-speed obstacle detection and avoidance.
 * **Simple Digital Interface**: Easy to integrate using trigger and echo pins for
   pulse timing; compatible with Arduino, ESP32, Raspberry Pi, and more.
 * **Compact Design**: Small and lightweight, perfect for compact systems, mobile
   robots, and embedded projects.
 * **Low Power Usage**: Consumes minimal current, making it suitable for battery-
   powered applications.

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### **Benefits:**

 * **Robotics and Obstacle Avoidance**: Enables robots and vehicles to detect and
   avoid obstacles in real-time.
 * **Smart Automation**: Ideal for proximity-based switching, automatic doors, or
   level detection in tanks.
 * **DIY and Education**: Excellent for STEM projects, microcontroller tutorials,
   and prototyping.
 * **Versatile Applications**: Suitable for everything from parking assistance systems
   to industrial automation.

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### **Applications:**

 * **Robotics**: Use in autonomous robots and drones for obstacle detection and 
   distance mapping.
 * **Smart Parking Systems**: Detect vehicle presence and distance in smart garage
   systems.
 * **Liquid Level Measurement**: Monitor water or fluid levels in tanks using non-
   contact sensing.
 * **Proximity Alert Systems**: Implement security or safety alarms based on object
   proximity.
 * **Industrial Automation**: Monitor material levels, object sorting, and distance
   in production lines.

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**Get your HC-SR04 Ultrasonic Sensor now** and start building responsive, smart 
systems that react to their environment with high accuracy and speed. Whether for
DIY electronics, educational kits, or professional-grade automation systems, this
sensor is a must-have in any developer’s toolkit.

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