HC-SR04 Ultrasonic Sensor Module – Distance Measurement for Arduino and Robotics
The HC-SR04 Ultrasonic Sensor Module provides accurate and non-contact distance measurement using ultrasonic waves. Widely used in robotics, automation, and proximity sensing, it works seamlessly with Arduino, Raspberry Pi, ESP32, and other development boards.
 
Key Features:
Precise Distance Measurement
Measures distances from 2 cm to 400 cm with up to 3 mm accuracy using ultrasonic pulses.
Non-Contact Sensing
Detects obstacles or objects without physical contact—ideal for fragile or distant targets.
Easy Microcontroller Interface
Uses just 4 pins (VCC, GND, Trig, Echo) to interface with most microcontrollers.
Fast Response Time
Ideal for real-time applications like obstacle avoidance, level measurement, and automation.
Stable Performance
Highly reliable for both indoor and outdoor applications when protected from water and dust.
 
Applications:
Obstacle detection in robotics
Smart parking systems
Water or tank level measurement
Distance-based automation
Security and proximity alarms
DIY electronics and learning kits
 
Package Includes:
1 × HC-SR04 Ultrasonic Sensor Module
 
Specifications:
Operating Voltage: 5V DC
Operating Current: 15 mA
Measuring Range: 2 cm to 400 cm
Accuracy: ±3 mm
Operating Frequency: 40 kHz
Interface: VCC, Trig, Echo, GND
Sensor Type: Ultrasonic transceiver
 
Dimensions:
Length: 45 mm
Width: 20 mm
Height: 15 mm
 
Weight: 10 g
 
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