HC-SR04 ultrasonic distance sensor module provides accurate distance measurements using sound waves. Compatible with Arduino, ESP32, Raspberry Pi, and other microcontrollers. Ideal for obstacle detection, robotics, level measurement, and automation projects.
Specification | Details |
|---|---|
Model | HC-SR04 Ultrasonic Sensor Module |
Operating Voltage | 5 V DC |
Operating Current | 15 mA (typical) |
Output | Digital pulse width on Echo pin |
Measuring Range | 2 cm – 400 cm |
Measuring Angle | ~15° |
Trigger Input Signal | 10 µs TTL pulse |
Echo Output Signal | TTL pulse, width proportional to distance |
Accuracy | ±3 mm |
Frequency | 40 kHz ultrasonic wave |
Module Dimensions | ~45 × 20 × 15 mm |
Weight | ~7 g |
Applications | Distance measurement, obstacle avoidance, robotics, liquid level detection, IoT automation |
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