If you want to quickly create a walking robot, you can use the Lego Boost. In this post, I will share how to use a webcam, Lego Boost, and Dynamsoft Barcode Reader SDK to make a robot for scanning barcodes. The programming language used in this article is Python.
Tag: Barcode
Android Barcode Detection from Fast Moving Objects
Assume you apply barcode technology to the logistics conveyor belt for scanning parcels. A problem you may face is how to recognize barcodes from blurred images. Although we can use advanced algorithms to deal with this complicated case, we’d better improve the image quality as possible as we can. A simple way is to adjust the camera shutter speed which is also known as exposure time. Faster shutter speed can avoid motion blur. In this post, I will share how to invoke Android Camera2 APIs to change the shutter speed, as well as how to build a simple Android barcode reader to decode barcodes from fast-moving objects
Moving Heavy Computation from Raspberry Pi to Windows PC
If you want to use Raspberry Pi as an economical way of detecting barcodes, you can take account for Dynamsoft Barcode Reader SDK. As a business software, Dynamsoft Barcode Reader SDK is designed for overcoming a variety of complicated scenarios with sophisticated algorithms and heavy computations. Although the SDK is flexible for customizing algorithm parameters, subject to the low-frequency CPU of Raspberry Pi, the tradeoff between recognition accuracy and detection speed is still a big challenge. In this article, I will use Socket client-server model as a substitute solution. Thanks to Sabjorn’s NumpySocket module.
How to Build Web Barcode Scanner Using React and Webcam
Someone asked me how to create a real-time web barcode scanning app with a webcam. Is it hard to implement it? I’ve written an article sharing how to integrate Dynamsoft JavaScript Barcode Reader SDK into a React project. The remaining work is to make a webcam component. Since there is an open source project called react-webcam, we don’t need to reinvent the wheel. In this article, I will share how to build a web barcode scanner step by step.
How to Use Python and PyQt to Read Barcodes from Webcam
In my previous article, I shared how to use PyQt and Dynamsoft Barcode Reader to create a simple Windows-styled GUI app to read barcodes from image files. Now I am going to add a little bit more code to scan barcodes from the webcam video stream.
How to Build Python Barcode Apps with Qt on Windows
Qt for Python enables developers to quickly create GUI apps on Windows, Linux and macOS with one codebase. In this article, I will share how to build a Python barcode reader with Qt on Windows. Since Dynamsoft Barcode Reader SDK is also cross-platform, it is easy for you to reuse the sample code on Linux and macOS.
How to Build Web Barcode Apps with React and WebAssembly
Dynamsoft JavaScript barcode SDK is built based on WebAssembly, which provides high performance for reading barcodes in web apps. This tutorial aims to demonstrate how to quickly create a simple web barcode reader by using React and Dynamsoft JavaScript barcode SDK.
How to Build a Simple PWA Barcode Reader
Progressive web apps (PWA), simply to say, are web apps that running like native apps on the desktop and mobile platforms. The advantages of PWA include installable, discoverable, linkable and so on. In this article, I’m trying to give a snapshot of a simple PWA barcode reader project that built with Dynamsoft JavaScript barcode SDK.
How to Use JavaScript Barcode SDK in AngularDart Project
AngularDart, similar to Angular built with TypeScript, is a web app framework written in Dartlang. It finally compiles to JavaScript. In this article, I will share how to use Dynamsoft JavaScript Barcode SDK to create a simple web barcode reader app using AngularDart on Windows 10.
How to Use Dynamsoft JavaScript Barcode SDK in Angular
Dynamsoft JavaScript barcode SDK is built based on WebAssembly. In this article, I will illustrate how to build a simple web barcode reader app by using Dynamsoft JavaScript barcode SDK and Angular.
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