Simply click the scan tab at the bottom of the screen then move the phone slowly until it recognizes and reads the code. You then launch QR Droid, point your smatrphone´s camera at the QR code and scan it.
Open my qr code reader free#
In order to use the QR codes your smartphone needs to be connected to the internet (Many of a Barcelona’s museums have free WIFI). I use QR Droid which is free and also allows you to generate your own QR codes like the one above.
Open my qr code reader how to#
How to Read QR Codes With Your Smartphone or Tabletįirst you need to download a QR code reading app from the App Store or Google Play. This allows the museum to display lots more information than they could typically print on information boards or labels. When you scan them with your smartphone they open a page of the museum’s website which with information about the objects on display. The camera automatic scan the QR code and get the result. The codes appear on information boards and labels. CanIUse.QR codes have started to be used by museums and other attractions in Barcelona.We hope you have fun coming up with something amazing! Downloadable Assets It’s also free an open source, which makes it even better. It has stood the test of time so well that it still remains one of the fastest - if not the fastest - option out there for the Web. QR codes have been around for many years, and the image processing code written by ZXing was first ported to JavaScript almost nine years ago. You can also use this from any platform, which makes it super dynamic and brings a lot of value to your customers. So there we have it, your very own QR code reader for your mobile website. You’ll be surprised at how fast and smooth it is. Hold it in place for an instant and you’ll get your result. Click on the QR button and show the camera some QR code to scan. Here’s the working project in codesandbox. That’s all we need! Now let’s try the app. The less you wait, the more you’ll be demanding from the user’s device, so be mindful. The more you wait for the next scan, the slower it’ll be. You can set this to something else to see what happens. If we can’t find anything, the error we defined will be caught and we’ll call a setTimeout to scan in 300 milliseconds. Tap the notification to open the link associated with the QR code. Your device recognizes the QR code and shows a notification. Hold your device so that the QR code appears in the viewfinder in the Camera app. We run the decode function from the qrcode library, which will look for a canvas with an ID of "qr-canvas" and scan its contents. Open the Camera app from the Home Screen, Control Center, or Lock Screen. Add the following to your css file: html We just want some basic styles for this sample app. Now we want to create the style.css file within the src folder. Adding StylesĪdd the stylesheet to the head of our HTML: We’ll create it later, but first we’ll improve the look of our app. Outside the container div we’re including the qrCodeScanner.js file. Add the following to your body tag: QR Code Scanner Data: Īs you can see, we have a wrapper container with a title, the QR icon image wrapped in an a tag, a canvas and a div where we’ll show the result of the scan.
We’ll need some very simple HTML for this project. Let’s begin by creating an index.html file.
We’re not going to build that ourselves, because there are some great libraries out there doing this for us, so we don’t need to reinvent the wheel for our current purposes. Our QR code reader will need some HTML and JavaScript but most importantly, a JavaScript library capable of interpreting the QR code.
0 kommentar(er)
