HC-SR04 Ultrasonic Module Distance Measuring Sensor

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98% of 100

SKU: CE05112 Brand: Core Electronics Guides (1)

The HC-SR04 ultrasonic sensor uses sonar to determine distance to an object like bats or dolphins do. It offers excellent range accuracy and stable readings in an easy-to-use package.

$1.95 AUD, inc GST

$1.77 AUD, exc GST

In stock, ships same business day if ordered before 2PM
Delivered by Fri, 6th of Dec

Quantity Discounts:

5-15 $1.74 (exc GST)
15+ $1.68 (exc GST)

Get 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, 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, it will work great with Arduino and other 5V microcontrollers. 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.

If you need a sensor that will work with 3.3V such as Micro:bit or Raspberry Pi Pico then check out this!

Our guide on using Ultrasonic Distance Modules with Arduino

Our guide on Sensors and how to use them

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

Technical Datasheet for the HC-SR04 Ultrasonice Distance Sensor

This product is listed in:

Sensors>Distance>Ultrasonic
Sensors>Distance
Sensors>

Product Comments

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We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

$3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
$7+ for Standard Post (typically 6+ business days, tracked)
$11+ for Express Post (typically 2+ business days, tracked)
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Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

$12+ for Pack and Track (3+ days, tracked)
$16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

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