Difference between revisions of "Ultrasonic Sensor (HC-SR04) + Arduino"

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(Created page with "==Overview== The HC-SR04 ultrasonic distance sensor uses sonar to determine distance to an object with stable readings and high accuracy of 3mm. The module includes ultrasonic...")
 
(Circuit)
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==Circuit==
 
==Circuit==
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There are four pins on the HC-SR04 Ultrasonic distance sensor:
 +
*Vcc: power.
 +
*Trig:
 +
*Echo:
 +
*GND: ground.
 +
 
[[File:CUS.png|300px|]]
 
[[File:CUS.png|300px|]]
 
  
 
==Reference==
 
==Reference==

Revision as of 14:08, 2 May 2017

Overview

The HC-SR04 ultrasonic distance sensor uses sonar to determine distance to an object with stable readings and high accuracy of 3mm. The module includes ultrasonic transmitter, receiver and control circuit. It basic principles of work are outlined here if interested. One of the outstanding features of this distance sensor is that it can detect not only the distance between itself to a solid object, it can also detect liquids (used in the Cheers group).

Arduino

Circuit

There are four pins on the HC-SR04 Ultrasonic distance sensor:

  • Vcc: power.
  • Trig:
  • Echo:
  • GND: ground.

CUS.png

Reference

https://cdn.sparkfun.com/datasheets/Sensors/Proximity/HCSR04.pdf