Ultrasonic sensor HC- SR04
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Ultrasonic sensor HC- SR04

TECHNICAL SPECIFICATIONS

  • Power Supply :+5V DC
  • Quiescent Current : <2mA
  • Working Current: 15mA
  • Effectual Angle: <15°
  • Ranging Distance : 2cm – 400 cm/1″ – 13ft
  • Resolution : 0.3 cm
  • Measuring Angle: 30 degree
  • Trigger Input Pulse width: 10uS
  • Dimension: 45mm x 20mm x 15mm
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et object/distance detection in your project using the low-cost HC-SR04 Ultrasonic Distance Module from Elegoo. Using the same principle as bats (Echo location), this module uses Trigger and Echo pin to send a signal and listen for it to be 'bounced back'. With a few lines of code you'll be detecting objects for your project. This module is the perfect option for detecting objects between 2cm-500cm in front of your project.

  • Range - This module can detect objects between 2cm and 500cm in front of itself with an angle of 15 degrees either side.
  • Accuracy - The readings of the module can be broken down into 0.3cm increments, which is plenty for most robotics projects
  • Mounting - Used by many makers, in many projects, the 4 holes on the circuit board make for easy mounting into your project
  • Software - As a favorite distance sensor, there are plenty of libraries and examples available to use with Arduino, Micro:bit, Raspberry Pi and other maker platforms.
  • Distance calculation - Once it's wired up, you'll use the formula: distance = (traveltime/2) x speed of sound for a measurement in centimeters

HOW TO USE THIS ULTRASONIC DISTANCE SENSOR

As this module is a 5V sensor, you can use it with almost any of the popular maker platforms (Arduino, micro:bit, etc). You'll simply need to wire the device up to your board and configure the trigger and echo pins as Output/Input pins respectively. Once you've got it configured correctly, use your code to take the Input reading from the Echo pin and plug it into the distance formula: distance = (traveltime/2) x speed of sound to get a distance reading.

It's really that easy. There's even a library for Arduino, NewPing, that makes the process even easier for you. We've written a pretty comprehensive guide on how you can use this module in your projects. It's guaranteed to get you up to speed as fast as possible.

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Ultrasonic sensor HC- SR04

TECHNICAL SPECIFICATIONS

  • Power Supply :+5V DC
  • Quiescent Current : <2mA
  • Working Current: 15mA
  • Effectual Angle: <15°
  • Ranging Distance : 2cm – 400 cm/1″ – 13ft
  • Resolution : 0.3 cm
  • Measuring Angle: 30 degree
  • Trigger Input Pulse width: 10uS
  • Dimension: 45mm x 20mm x 15mm

Write your review