A barcode reader (or barcode scanner) is an electronic device for reading printed barcodes. It consists of a light source, a lens and a light sensor translating optical impulses into electrical ones.
Questions tagged [barcode-scanner]
2511 questions
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BarCode Scanning in React-Native
I was using react-native-barcode-scanner-google but its not working now.i have two screen on my home page one of them is barcode scanner screen.when i click on barcode screen i got message "unfortunatly the app has stoped".I also try other barcode…

Amir Zeb
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Quagga javascript barcode scanner - Uncaught TypeError: Quagga.init is not a function
I'm trying to write some vanilla javascript code to do barcode scanning from my website, however I can't even get past the first step using the Quagga javascript library. My code is currently this:
…

Superdooperhero
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Flutter - Listening to one value through whole app
Iam using EventChannel to handle events from hardware barcode scanner. EventChannel is initialized in initState, in main class - it works through whole app. While change is detected, it inserts value into global variable (ValueNotifier - i dont…

Tomáš Podmanický
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How to re-encode the content read from DataMatrix?
I tried to interpret the DataMatrix code and read the following,
enter image description here
0000 05 01 ff ff 00 00 30 36 32 53 ee 87 9e 00 0a 1b | ~~~~~~062S~~~~~~ |
0010 93 87 01 d4 1c 00 e2 3d 34 01 81 48 01 00 da de | ~~~~~~~=4~~H~~~~…

komzer
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Not able to scan datetime format barcode using zxing barcode scanner
I integrated ZXING barcode scanner into my project but its not working for datetime format 2021-05-19 12:25:09
I tried to scan using https://zxing-js.github.io/ngx-scanner and enable all the format but no luck.
In my codebase after scanning I am…

vikram singh
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Barcode Scanner result for flutter
I have a Flutter project. In that project I have a barcode scanner. When I scan a barcode, I return a result of numbers. In the same project, I have a local JSON file. In the local JSON file I have a field called 'BARCODE' and it contains some…

sinergy
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Differentiating Windows CE barcode scanners with javascript
I am using the built in web browser on the scanner to access a javascript page with an auto focused form. It redirects the standard output stream to the form and submits it which puts the barcode into a database. Is there any ways I can get some…
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Barcode39 translating tab function incorrectly
I'm trying to help my colleagues to fill out a web form with multiple fields faster through an automated barcode.
The barcode would be code39 and would be generated as follows: 'NameTabLicensePlateTabetc'.
Through research I have found that I need…
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Localize and Read BarCodes with Matlab Code
I have the following MATLAB code to localize and read barcodes in pictures (JPG,PNG):
## MATLAB CODE ##
%% Read picture
I = imread("4.png");
%% Gray Version
Igray = rgb2gray(I);
%% Localisation Sobel-Technique
[~,threshold] =…

Haithem Firass
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How to scan Barcodes with Embedded Weight in android zxing
I read on this article how scan Barcodes with Embedded Weight function works, but I wonder if zxing library can make this scan or just scan the barcode as total and read it with the full EAN-13 numbers only?
user15587401
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Trying to pull plain text data to use in a service
I'm creating an app for an android mobile computer that can take the data scanned and convert a specified character to another. The way it currently works, I manually code in what characters to look for and convert to:
public String…

lvl 1 slime
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Google vision Bar code Scanner not working for android 6.0 (Marshmallow)
In our app we are using the Google vision Bar code Scanner to scan QR-codes. This was working fine until we tested Android version 6.0 (Marshmallow). I tried to find some documentation with supported version but could not find anything. The scanner…
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Why still triggers TextChanged Listener on previous activity/fragment when using an integrated barcode scanner on another activity or fragment?
I'm developing an Android App for a client that mostly uses a NOMU T20 device with a Honeywell scanner integrated.
I'm working with a virtual keyboard adding a TextWatcher to an EditText that displays de barcode scanned and triggers a call to an API…

Zeronne
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Printing Barcode Reader Data on LCD using Raspberry Pi
I am trying to read Barcode Reader data over serial using Raspberry Pi and then print it on 16*2 LCD Display. I was able to read the barcode data but when i tried to print it on LCD display it doesn't print the data on display.
I tried to display…

Ashish
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zxing-library does not read barcode
I am using @zxing/ngx-scanner in my angular application. I am trying to scan a barcode of format code_128. But it won't scan it. I have attached the barcode.
I have had no issues yet with any other barcodes only this particular one is giving…

pix1289
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