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HC-SR04 Datasheet - ELECFreaks

HC-SR04 Ultrasonic User Guide

5V power supply Trigger pin Receive pin Power ground 2.4、Electrical parameters Electrical Parameters Operating Voltage Operating Current Operating Frequency Farthest Range Nearest Range Measuring Angle Input Trigger Signal Output Echo Signal Dimensions HC-SR04 Ultrasonic Module DC-5V 15mA 40KHZ 4.
HC-SR04 User Guide Part 1 Ultrasonic Introduction 1. 1 Ultrasonic Definition The human ear can hear sound frequency around 20HZ ~ 20KHZ, and ultrasonic is the sound wave beyond the human ability of 20KHZ . 1.2 Ultrasonic distance measurement principle Ultrasonic transmitter emitted an ultrasonic wave in one direction, and started timing when it launched. Ultrasonic spread in the air, and would return immediately when it encountered obstacles on the way. At last, the ultrasonic receiver would sto.

HC-SR04 Features

* Stable performance

* Accurate distance measurement

* High-density

* Small blind Application Areas:

* Robotics barrier

* Object distance measurement

* Level detection

* Public security

* Parking detection 2 2.2 Product Image 2.3、Module pin definitions Types HC

HC-SR04 Datasheet (717.93 KB)

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Datasheet Details

Part number:

HC-SR04

Manufacturer:

ELECFreaks

File Size:

717.93 KB

Description:

Ultrasonic user guide.

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HC-SR04 Ultrasonic User Guide ELECFreaks

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