How to scan a code on a Samsung phone

Additional Information

Sometimes problems can arise when using the option in question. Let’s explore common issues.

scan, code, samsung, phone

How to Read QR Codes with your Android Phone easily

Now you need to take a picture of the required code in this mode. Try to select it so that it falls completely within the blue frame and take a picture. Next, in the same window, click on the thumbnail of the image in the lower left corner:

In the toolbar that appears below, click Scan QR Code and you’re done.

Sometimes this item does not appear immediately and you need to wait a little.

ways to scan QR code on Samsung Galaxy and Samsung A series

To scan a QR code on a Samsung A series and Galaxy phone, you need to use either the built-in tools or download a special scanner. To do this, you need a modern smartphone or tablet that takes clear legible pictures. It is also possible to decrypt the information through a PC or laptop. Other gadgets do not work with this data format yet.

Want to know more facts and interesting tricks about Samsung smartphones. Follow the link to our new project

From an unlocked smartphone

Call up the quick access panel by moving down from the center of the display. Next, on the right, select the desired icon, point to the code, read the information.

ways to scan QR code on Samsung Galaxy smartphones

How to Scan QR Code on Samsung Galaxy and Samsung A Series? The problem is that the developers managed to hide this function in the most unobvious places, which they could not find even with the help of a search for settings. In fact, everything is not so bad and for this we do not need to install third-party applications.

There are several ways to read QR codes on Samsung smartphones. They differ depending on the firmware version.

Why is there no QR code scanning app on Samsung Galaxy S6?

The Galaxy S6 is considered a budget phone under 250. This explains why this model has stripped down functionality. To use the scan, install a special application, for example, select one of the suggested in the article.

– from a locked smartphone

  • On a locked smartphone, press the Power button to turn on the screensaver.
  • Now you need to call the additional toolbar. we make a swipe from the bottom of the screen to the top.
  • In the panel that appears below, we are interested in the icon on the right. click on it.
  • A scanning window appears, where it is enough to select the item QR-code. We direct the code so that it falls into the frame and you’re done. the information will be read and displayed on the screen.

Where to find QR code on Samsung phone

Most Androids now come with built-in QR code software. These are simple programs directly related to the camcorder. To activate the option in the settings, press the special button.

Your phone is now ready to read and use the encoding.

How to Scan QR Code on Android Samsung

How to scan a QR code on “Samsung” if you need to quickly read information? Modern Galaxy models run on Android OS, so we will consider the situation on this “OS”. The most popular way is to download special programs from the Play Market. These applications will allow digital reading, but you still need to be able to use them. Let’s get down to a detailed analysis.

What is required to scan a QR code on Android OS

Matrix barcodes have become part of our lives. Initially, the encoding was used in the automotive industry, but then it migrated to other industries. Now QR codes are marked:

To get the required information, you need a modern smartphone equipped with a camera and simple software. Even with the front camera on your device, you will achieve what you want. Apps from Gamma Play, InShot Inc and YUNteam will be of invaluable help.

How to read a QR code with a Samsung smartphone

Mobile scanners are pretty primitive. Now we will show you how to scan a QR code with your Samsung mobile phone in three steps:

  • Install suitable software on your mobile phone.
  • Open the application by clicking on its icon.
  • Point the camcorder at the QR code.

Scanning can be customized as you like. For Galaxy owners, the easiest way is to launch a Samsung scanner built into a standard shell. Actions are carried out in a special mode that will need to be activated. Enter the “Camera”.

Move to additional settings. there you are interested in scanning mode.

Done. Read the data. the algorithm works on any Samsung.

How to read QR code via Samsung browser

The Samsung Internet browser can be enhanced with additional extensions. One of these extensions suits our needs. Go to the browser settings menu and activate the desired program.

Now you know how to scan a QR code on “Samsung”. Similar tools are available in Xiaomi and Huawei gadgets. The latter manufacturer even bothered to read the encoding with a locked device. As for third-party applications, you need to install them from the Play Store. There are enough options. choose the software you like and click “Install”. Then the gadget will do without your participation.

How to scan qr code on different models of smartphones

There are several ways to scan a QR code on an Android device: by downloading a special application through the Play Market or using the built-in OS tool for reading codes.

QR-code (English Quick Response Code. quick response code; abbreviated QR code) is a matrix (two-dimensional) barcode, developed by the Japanese company Denso-Wave in 1994. Initially, these codes were used in the automotive industry to quickly record information about the production and sale of cars.

Now images with black squares can be found at:

The QR code is convenient because it allows you to encrypt several thousand characters in one picture. In this case, the image itself for scanning can be either a small centimeter square or a rather large picture placed on a flat surface.

Create your own QR code

You can use various tools or online generators to create your own QR code. Most popular services:

  • Application “AndQR. Create QR Codes”.
  • QR Code Generator Application.

First, you need to choose what function the generated code should perform and enter the information that needs to be encrypted. Further, the individual design of the code is carried out. color design and logo.

Each service has its own settings and restrictions, which you should familiarize yourself with before starting work.

Built-in Android apps


On Samsung devices, the scanner is a function built into the standard camera, and in order for the code to be read, you just need to point the lens at it. But if automatic recognition did not work, you need to activate a special mode. For this:

  • Go to the “Camera” application.
  • Go to additional settings.
  • Selecting the scanner mode.

Thus, you can get information from the QR code on all modern Samsung models.


Xiaomi smartphones have a Scanner application, which by default is located in the Tools folder or in the additional menu to the left of the main screen.

All you need to do is run the tool and place the code inside the scan frame. If the code is correct and the camera is well focused on the image, then the display should show all the information encrypted in the image, which can be used at your discretion.

A feature of the Xiaomi scanner is the ability to scan any photo from the Gallery for the presence of a QR code.

What it is

QR is short for Quick Response Code, which means quick response code. A two-dimensional barcode created by a Japanese organization in the mid-90s. At first they were used in the automotive industry to quickly search for information about the development of cars.

Scan QR code

Nowadays, a picture with black lines is often found:

Important! The convenience of a QR code is that it encrypts several thousand values. You can read both a thumbnail image and a large picture.

How to scan a QR code on a Samsung, Huawei, Xiaomi smartphone

Modern phone manufacturers often implement their own barcode tools on Android. You can read without installing the application on several models.

Owners of Xiaomi devices can use the built-in Scanner program. Located in the “Tools” section or in the auxiliary panel.

For the application to work, the user needs to place a character inside the scan limiter. After correct scanning on a focused camera, encrypted information appears on the screen from the image.

Finding a scanner on a Xiaomi device

Important! The uniqueness of the application lies in scanning any picture from the photo album to find the QR code.

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Users of Huawei or Honor devices can display a number of tools on the locked display for quick use. Symbol scanning app included.

Instructions for opening and using the program from the locked screen:

  • Swipe up to unlock the display. At the bottom is the settings panel.
  • Select a scanner from the list of available utilities.
  • Hover a quick response code on the camera.
  • Wait for the decryption results and analyze the data.

On the main screen of the mobile device, you can find the program through the quick search menu. Swipe down from the middle of the display and select the utility symbol found in the query string.

Important! In order to scan a cipher from a photo, you need to select the desired picture and through the “” additional settings panel go to the “Scan QR Code” service.

The scanner function is built into the classic Samsung smartphone camera. To read, you just need to point the lens at the object.

If the automatic mode did not recognize the object, then you can switch to a special format. The method is available on modern devices to receive encrypted information:

  • Go to the “Camera” service.
  • Go to auxiliary tools.
  • Select the “Scanner” utility.


QR code reader app

After installing the program, you can run the utility. The user grants permission to use the camera and points it at the object. Then you can copy or immediately open the link in your default browser.

There are different options for reading QR code depending on the Android device model. To scan an image, you need to open the utility and point the camera at an object to get a link.

How to scan a QR code: on an Android phone, in detail

You can recognize a QR code on an Android phone or tablet using both the tools already built into the system and using third-party applications.

So, the user always has the opportunity to scan absolutely any QR code and find out what is encrypted in it, this is a convenient Android function.

In the previous article, we examined in detail what a QR code is and what it is generally needed for. Now we will analyze in no less detail how to scan a QR code on Android from the phone screen.

Important! From the instructions, you will learn how to scan the qr code on a smartphone: Honor, Samsung, Xiaomi, Huawei or any other Android phone, since the process is the same everywhere. We discussed how to do this on Apple devices in the article. how to scan a qr code on an iPhone.

Built-in tools

First of all, you need to check if your smartphone or tablet has a QR scanner built into the camera, for this:

Open the camera app on your phone and see if there is a scanner mode. It can be placed in a separate menu, for example, in lenses.

Select this item and point the camera at the code, an offer to follow the link will open, just the decrypted text or other content.

Interesting! In some shells, it is not necessary to look for a menu item that enables scanning. It can always work in automatic mode and will be triggered when the camera is pointed at QR.

It is also worth noting that a special application for these purposes may already be installed on the smartphone. For example, on Xiaomi devices it is called “Multifunctional Scanner”. Check it out on your device.

Gamma scan

One of the fastest scanners for Android. It works very smartly and shows all the necessary information. Easy to operate and in Russian.

The application is very easy to use, you just need to launch it and point the phone camera at what you need. The program will immediately show all encrypted information.

  • Very fast
  • In Russian
  • Free
  • History
  • Understands damaged or dirty images
  • Easy to operate


High-quality and convenient application in Russian. It works really fast and understands even corrupted or dirty codes. Great option.

Among other things, it allows you to create QR codes yourself, which is simply necessary. Has a fairly large functionality and a number of convenient settings.

  • No ads
  • In Russian
  • Fast working speed
  • Create your own QR
  • Working with images
  • History
  • Settings

Interesting! These applications are also convenient in that, in addition to the QR itself, they allow you to read information from ordinary barcodes, and this can sometimes come in handy.

QR Droid Code Scanner

Another application that can be found on Google Play. You can also download it via a direct link on the Google website. For now, we will consider the program itself.

This is how the QR Droid Code Scanner launch shortcut looks like. click on it.

This application, unlike the previous one, is made in Russian and, as soon as it starts, we need to click on the button that says: “STARTING WORK”.

The scanner is immediately visible, but first, let’s take a look at its settings. We tap on the button located in the upper right corner.

In the main menu, you can see 6 tiles-buttons that redirect the user to the desired section. Here they are:

  • Scanner. Needed directly to scan QR codes;
  • History. Contains all objects that were scanned in the program;
  • Share. Sending the result to another person or people;
  • Yet. Additional functionality, which will be discussed below;
  • Settings;
  • Tips & Tricks.

So, in order to use the scanner, you need to activate it in the main menu and, hovering over the QR code, press the “Read” button.

Next, let’s look at the program settings. In the same way as in the previous case, we will show you all the screens and, as necessary, we will explain the purpose of this or that item.

Here the start screen is selected, the address for the backup is set and the language of the program interface is configured.

Next, we can set up the scanning engine. One of the proprietary algorithms is used: Zapper or ZXing. Below you will be able to enable or disable the crosshair, set up an automatic action after scanning, and enable displaying hints or copying a link to the clipboard.

In this section, you can configure the soundtrack, turn on and off the vibration. The process of recording actions in the log and interaction with the Android Wear smartwatch is also configurable.

Then we will be able to export or import the backup or set the date.

Allow the sending of anonymous data (it is better to disable it), enable verification of the security link received during the scan, or configure batch scanning. Functions like zoom or highlight are available below.

But this is not the end of our settings. In addition to the above functions, we have the following:

  • extended slip function;
  • prohibition of some special characters;
  • activation of WEB preview;
  • search for saved images.

The final settings screen contains interesting features such as: setting the maximum number of positions, configuring custom CSVs, shaking the smartwatch and saving duplicate positions.

In addition to the settings in the QR Droid Code Scanner menu, there is an item called “”. Consider its functionality.

  • Privileged partners. List of apps cooperating with QR Droid Code Scanner;
  • Inbox. App technical support;
  • Scanning from a file;
  • Manual QR code entry;
  • Service for creating short links;
  • URL crawling;
  • Working with XQR codes;
  • Tips and tricks;
  • Program evaluation;
  • Share this.

Consider the last, but no less functional, application on our list.

How to scan QR code on Android with and without programs

A QR code is analogous to an older barcode. However, unlike him, he is more secure and practical. The barcode could only indicate some information, such as, for example, the website address. QR, on the other hand, carries a lot more data and allows you to include anything you want. Thanks to all of the above, many programs have appeared on Android to scan such code. In this article, we will just talk about how this is done.

Standard functionality

Some smartphones and tablets (depending on the brand) have the functionality of scanning QR codes as standard, and everything can be done without an application. We will not list them all, we will only touch on the model from Xiaomi.

  • In order to read QR on such a smartphone, you first need to launch its standard camera.
  • At the top right of the screen is the settings button. We tap on it.
  • Find the item indicated in the screenshot and turn it on.
  • Now, when a QR code appears in front of the lens of your camera, it will be automatically recognized. You will see a link like this, which is shown in the screenshot below.
  • A selection window will open in which you can either copy the link or open it in the browser.

Analysis software

In order to scan and decode a QR code, you actually need an Android smartphone or tablet with an integrated camera. You will also need to install a special application.

We will not pour water, as they say, and will immediately move on to the issue of reading QR codes. In order to do this, the top 3 third-party applications will be used, as well as standard tools. True, they are only in some phone models.

NeoReader QR Barcode Scanner

This program, like others, you can download and install via Google play or via a direct link. When this is done, you can go directly to work with her.

How to Scan QR Code from Camera on Samsung Galaxy A50s, A50, A40, A30, A20, A10, etc

On the first launch, we need to satisfy the access request Click “ALLOW”.

Next, we will be notified about the main features of working with the utility. To close the ad, click the button circled in the picture below.

Then a window with settings will appear. Here you will be able to choose a language, indicate your country, gender and age. The two checkboxes below allow you to enable or disable the program’s access to geodata.

You can actually start scanning. Point the camera at the QR code and NeoReader QR Barcode Scanner will automatically recognize its contents.

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When the sign appears, we can either get additional information about it, or open it in a browser.

You can also choose exactly the browser you want.

And here is the result. The diaper pack was recognized flawlessly and we see the official website of Libero.

We think that these three programs will be enough for any person. Choose the most convenient for you and use at your discretion. We will talk about some of the features of Chinese devices.


  • There is a search bar at the top of the Google Play window. This is what we will use. We activate and write the name of our application. It is not necessary to enter it all the way. As soon as the object indicated in the screenshot appears in the search results, just tap on it.
  • We will be redirected to the home page of the program. There is a large green button that says INSTALL. Click her.
  • We are waiting for the end of the download of the application. Since it “weighs” a little less than 5 MB, the process will not take much time.
  • Done. After the automatic installation is over, we can run the program right from here.
  • Also on the home screen (if activated in the settings) a launch shortcut will appear.

This completes the installation of the program, and we can proceed to an overview of working with it.

In the screenshot below, you can see the programming interface. Here it is divided into 3 main tabs. There is also a settings icon made in the form of a gear. On the main tab “SCAN” there are 4 main tools:

  • Scan Barcode. This is a QR scanner that works through a camera;
  • Manual Key-in. Function of manual data entry about the code;
  • Decode from File. Decoding from a file. From here you can open the previously downloaded QR code and read it;
  • Decode from Url. Scan by link.

At the bottom there are several buttons that do not carry useful functionality. You should not pay attention to them.

Let’s consider the program settings. There are quite a few of them here. Your screens will have screenshots of different configuration areas, but we will just voice some of the most interesting points.

For example, on the first screen, you can enable or disable the sound of the program. The same can be done with vibration feedback. You can set the operation mode when the program will start immediately from the scanner, bypassing the main menu. Another important feature is the automatic copying of data to the clipboard.

As soon as we want to start scanning and launch the scanner itself, the program will request access to the necessary system resources. Naturally, it needs to be resolved. Click the button marked in the screenshot.

Next, we aim the frame of the scanner so that the horizontal strip falls directly on the QR. Try to keep your hands from shaking while staying focused. Scanning will fail without normal sharpness.

There is a backlight for QR BARCODE SCANNER operation in low light conditions.

Once the code is recognized, you will see the information shown in the screenshot below.

There is a thumbnail of the tracked QR code, its format, data type and date. Naturally, in the window below we will see the content. In this case, this is a link to the manufacturer’s website. There are also 2 buttons “Go to Website” and “Share”. The first will open the official site, and the second will help. As a result, the site has opened. Everything works well.

In addition to scanning QR, you can also create them here. To do this, go to the third tab. We marked it in the screenshot. All data types that can be encrypted are listed as a list. The following is supported:

  • phone book contact;
  • phone number;
  • Url;
  • Email;
  • attachment;
  • location;
  • any text;
  • bookmark;
  • calendar event.

When the data type is selected and set, we just have to click the “Encode” button. In this case, we encrypted the link.

The output is such a nice code. You can immediately share it or change the color.

Let’s try to encrypt arbitrary text as well. To do this, select the desired item.

Enter the phrase in the designated field and press the “Encode” button.

The result looks great. Let’s change its color a little more. We press the button intended for this.

Let’s move on to the next program, which also has impressive functionality.

How to scan a QR code on an Android phone?

QR code is a barcode developed and presented by the Japanese company Denso Wave back in 1994. Recently QR codes have become popular in our country as well. With the help of a barcode, you can encrypt a lot of information, for example, an address or a web link. In order to read information, it is enough to have a smartphone or tablet with a camera at hand. Today we are going to show you how to read this kind of codes on Android devices.

The link to the Google search engine is encrypted in it.

There are also unusual QR codes, for example, with additional images or even logos, as is the case with the Wikipedia QR code.

This QR code is also very easy to read using the app. Which one? It depends on your smartphone and the firmware installed on it. The fact is that in some cases the QR code scanner is already built into the firmware, so there is no need to install a third-party application.

Galaxy S6/S7/S8/S9: How to Scan QR Code w/ Built-In Scanner

Unusually implemented on early EMUI firmware: you need to unlock the main page of the screen and swipe up from the bottom of the window.

Then icons will appear, among which there is a QR code scanner. select it. Application launched.

To scan a QR code, it must be placed in the specified frame. When you do this and the scanner fixes the QR code, the scan result will immediately appear. In our case, the website address is encrypted, which you can immediately go to.

It will be opened in the default browser (at least in our example).

What if you couldn’t find the QR code scanner on your smartphone? Use third party applications. Open the Play Market.

In the search, specify the query “QR code scanner” (without quotes).

After installation, you act in the same way: put the QR code in the frames and the system scans it, after which it gives the result.

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How to scan documents using an Android phone

“Scanning” documents and photos on your phone is a useful feature. Fortunately, there are very easy ways to scan documents.

Of course, a dedicated scanner will still be better if you often need to scan a large number of documents, but using your phone as a scanner will also work if you only need to scan a few documents. Here’s what we recommend for Android.

Best Way to Scan Documents on Android: Google Drive

If you are using an Android device, the best way to scan documents is with the Google Drive app, which is installed on almost every Android device.

You can scan documents directly from Google Drive by clicking the “” button in the lower right corner of the home screen.

Select “Scan” from the pop-up menu.

It can ask for permission to access the phone’s camera. Click “Allow”.

When you are ready to scan your document, position the document so that it fills the entire screen as much as possible and press the blue button. You can also use flash by clicking the flash icon next to the capture button if your device has a flash. If your device does not have a flash, this option will not appear.

After scanning the document, a preview appears immediately. Don’t worry if most of your document gets cut off when you preview it. Click on the corresponding icon to select the area you want to save.

Touch, hold and drag the dots to change the area that is being scanned.

When finished, click on the checkmark in the lower right corner of the screen.

You have three options immediately after scanning:

  • Click the plus sign to add more pages to your document.
  • To repeat the scan, tap the circular arrow in the middle.
  • Click the checkmark icon to complete and upload the document to Google Drive.

You can also make minor adjustments after scanning. For example, clicking on the palette in the upper right corner will allow you to change the choice of the scan color and bring it to a specific type of document. By default, the scanner automatically selects the one it thinks is the best.

Finally, the three dots in the upper right corner will allow you to delete, rename and rotate the scanned document if necessary.

Scanned documents are added to Google Drive in PDF format, and names are added along with the word “Scanned” followed by the date and time. You can move, rename or delete any of the scanned documents by clicking on the three dots next to the file name.

You can also share your scanned documents from this menu by clicking “”. This will link to the document in Google Drive, and Send a Copy allows you to share the file via email, send it to Dropbox, and more.

Then you convert this scanned PDF into a document, which can then be edited or exported to Microsoft Word.

What is a QR code and how to work with it

QR codes, in fact, are miniature data carriers capable of storing text information equal in volume to half an A4 page. This data is encoded using black and white squares, which, like zeros and ones in computer technology, can only be decoded with a special scanning device. They are united by the following principle: a certain combination of squares corresponds to some specific value, for example, a letter or a number.

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Initially, QR codes were used only in industry, but over time, other possibilities of their use were discovered, and QR codes began to actively penetrate into our lives. Any smartphone with a suitable scanner program is capable of recognizing and decrypting this information. Most often QR codes are now found in advertisements and newspapers. Here they primarily contain complex or very long Internet addresses. To get the necessary information, you need to bring the camera of your phone or smartphone to the code (see the figure at the top right). uses QR codes to download applications (see sidebar on page 64). By the way, QR stands for Quick Response. quick response. How much the chosen name corresponds to reality, you can check using the test QR codes on the next page. A camera phone with a scanner program can decipher the code in an instant.

This mark, located in the three corners of the picture, allows the scanning device to recognize the position of the QR code and start the scanning process faster. The recognition quality is affected by the width of the white frame around the QR code. 2. Version number The QR code also contains information about the version of the code used. currently their number has already reached forty (see the figure below on the left). 3. Synchronization Between the three positional marks there is a dotted line that defines the model of the matrix. 4. Format The scanning device uses this information to determine the data format to use. For example, what exactly is hidden in the code: a calendar entry, contact information, or a link to a resource on the Internet. 5. Direction This mark helps the scanning device to determine if the QR code image has perspective distortion or not. The larger the code, the more labels of this kind it contains. QR codes are always square. The heart of the code is the so-called matrix with its intricate pattern. Black mowing lines and squares contain data that is stored in modules. The number of modules depends on how much data needs to be stored. The smallest QR code (version 1) contains 441 modules (21×21). Version 40 has 31,329 modules (177х177) and, accordingly, a larger size. In addition, the QR code contains additional data necessary for the correct recognition of information by mobile phone scanners.

The matrix, despite the apparent confusion of many lines and squares, provides ample opportunities for data storage. Unlike old barcodes, data in the matrix is ​​stored in two dimensions. vertically and horizontally (see the figure below left). So, small squares can contain about 4 thousand alphanumeric characters, that is, letters in combination with numbers and special characters. For comparison, the EAN barcode applied to packages can store only 13 numbers. Thanks to the error correction system, you can read the QR code even if part of the code is missing or damaged. The higher the degree of error correction, the less data can be placed in the QR code. By the way, QR codes can have a different color. not only black and white. Only one thing is important: that there is a clear contrast between light and dark areas.

In fact, only textual information: letters, numbers, signs. The technology provides various options for formatting text, which allows the scanning device to accurately determine the purpose of the code and suggest the appropriate action. However, not every code scanner program understands all formats. created five test QR codes for you.

The most common formats are.

    Internet address. QR codes in newspapers and advertisements contain mainly links to any Internet resources. They redirect the user to the desired site, eliminating the need to painstakingly enter a lot of characters in the address bar of the Internet browser. The website contains, for example, a product description or additional information from a newspaper article. Contact details. The popularity of QR codes is steadily growing, containing contact information, applied, for example, to business cards. This makes it easier to use personal data: you simply scan the code and save the contact information on your phone or computer. E-mail address. The QR code can also contain the email address as well as the recipient’s name. So there is no need to manually enter the address. the message can be sent with one click of a button. Possible use cases: obtaining information and participating in raffles of valuable prizes. SMS. Quite often you need to send an SMS to participate in a promotion. A QR code will save you the hassle of typing. Just scan the code and you will see a ready-made message on the smartphone display. Geodata. Geodata can also be encrypted in a QR code, which allows you to see the location of a particular object, for example, in Google Maps. Text. This format is suitable for various purposes. for example, for printing on entrance and travel tickets, as well as for saving short texts or poems. Phone numbers. When scanning a QR code with a phone number, you can immediately make a call, however, provided that such an action is supported by the installed scanner program.

What you need to scan QR codes

Mobile phone, tablet PC or laptop with a camera. In addition, you will need a suitable program capable of reading QR codes. Popular applications Beetagg (www. Beetagg. Com) and i-nigma (www. I-nigma. Com) can be installed on Apple and Nokia phones, as well as on Android devices.

Launch the app and point the camera at the QR code.

In an instant, the program will decrypt its contents and offer to perform the appropriate action.

If the answer is yes, for example, your Internet browser will be launched, which will load the corresponding page on the Internet.

Try QR Codes in Action: Below are five real QR Codes. You can quickly find out what they contain with a camera phone.

Contact details If you scan this QR code, you will receive the contact details of Nikolay Levsky, editor-in-chief of ComputerBild magazine. You can enter this information, for example, in your address book.

E-mail address This QR code will take you directly to the department of ComputerBild magazine, which responds to readers’ emails: editorial @ computerbild. ru.

Link The website contains a lot of useful information and therefore is very popular with regular readers. This QR code will save you the trouble of manually entering the address on your mobile device: www. computerbild. ru.

Despite the fact that QR codes can store the largest amount of data, the following types of two-dimensional codes are also quite popular.

Aztec Code His black squares in the center of the field cannot be confused with anything. This code can contain about 3000 letters or 3750 numbers. Aztec Code has been selected by the International Air Transport Association for Electronic Tickets.

DataMatrix The DataMatrix can contain approximately 2300 alphanumeric characters. This code is used for marking in electronics, automotive, food, aerospace and defense, mechanical engineering.

It’s not difficult at all. Due to the fact that QR codes were not licensed, each of us can create and use them for free. To do this, you only need a special program. a QR code generator. For informational purposes, it is best to use one of the free web services. ComputerBild will tell you how to do it with QR Coder.

The web service will help There are services on the Internet for creating your own QR codes for free. One of them is QR Coder (www. Qrcoder. Ru). ComputerBild will help you master the procedure for creating codes using this service. You can use other similar online resources. QR Code Generation Go to www. qrcoder. ru. Next, the QR code input mask will be loaded, and the text is selected as the format. To change the format, click on the appropriate link, and then enter the text and click on the “Create code” button. Immediately after that, you will see your QR code on the right. To save it on disk as a GIF file, right-click on the picture, select “Save” in the context menu and specify the path to the folder where the image will be stored. Done! You can print the generated QR code on a printer or send it by e-mail.

What you can use your QR codes for

The QR code can be saved as a GIF, JPEG, TIFF, or PNG image file. Therefore, as in the case of regular photographs, you get ample opportunities for using codes. The QR code can be easily printed on an inkjet or laser printer, published on the Web, sent by e-mail or used as a screen saver containing, for example, a message: “Pause!”.

The QR code was developed by Denso Wave, a Japanese company belonging to the Toyota group of companies, and introduced in 1994. Back in the distant 80s, the Japanese auto industry began to impose increased requirements for machine-readable codes. They were supposed to store more data in a much smaller area, and scanning should not be hindered by partial contamination or code corruption.

There is no size limitation. The main condition is the ability to read the code with a scanning device. A huge QR code on the wall of a house can be read, for example, from a distance of several meters using a telephone. QR codes should also not be too small, otherwise scanning devices with simple optics, such as cell phones with a built-in camera, will not be able to focus on the code and decipher its contents. Even if the QR code contains only one Internet address, the length of each side of the code should not be less than 2.5 cm. Using high-precision laser technology, tiny QR codes can be engraved on the surface of any structural elements. However, this entails the need to use the same high-precision scanning devices.