June 2012
Beginner to intermediate
120 pages
2h 50m
English
Content preview from QR Codes For Dummies, Portable EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Testing Your QR Code
After you create a QR Code, you want to test it before you use it in a campaign, to make sure it’s working. Here are some suggestions for testing your QR Code to make sure it works in the real world.
Scan the QR Code in different lighting. If it doesn’t work, you can increase the contrast of the code (a darker color on a lighter background if you started with something lighter than a black code on a white background) or you can take steps to make sure it’s displayed in an area with the right amount of light.
Try it out on multiple devices. Scan the code with as many different types of devices — old and new — and QR Code readers as possible to make sure it works.
Test the code at the distance it will be scanned by people. Sure, the code works correctly when you scan it on the table in your office. But what about when the QR Code is on a billboard and hundreds of yards from where people will scan it? Will it work then?
Test Internet access in that area. Make sure ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.