QR code stands for "Quick Response" code—a registered brand of Denso Wave, invented in 1994.
It's a 2D (two-dimensional) bar code readable by computers (having a webcam), smartphones, and tablets. In a single QR code, you can encode 4296 characters. However, once it is generated, you cannot alter it. If you attempt to change a code, it will result in a different QR code being produced.
The QR code consists of black squares with various vague patterns organized in a square grid on a white background. The data is extracted from those fuzzy patterns.
It uses four standardized encoding modes.
The first time, a QR code was used in the automotive industry in Japan. Denso Wave invented it in 1994. Its invention gained fast popularity in the market because of its ability to store more data and easy readability. At the start, the QR code was used for time tracking, product tracking, product identification, document management, and marketing.
Today you can use the QR codes both for personal or commercial purposes. You only need to download a suitable application to read those codes on a smartphone. Usually, the QR code reader application is available in all types of smartphones.
You cannot change the static QR codes. Once it's created, the information stored in it is fixed. And it does not allow changing of the targeted URL or address of the data once generated. Furthermore, it does not enable you to track the scans' data and only leads you to one URL. The static QR codes are only helpful for personal use. They are not beneficial for business use because of their limitations.
On the other hand, you can change the dynamic QR codes. Once it's created, the information stored in it is alterable. You can track the data, and you can edit your URL or targeted content at any time. For marketing purposes, dynamic QR codes are more valuable. You can track the QR code and track the number of scans. When the user scanned, you can track the scan location (city, country) and user's device type (Android, iPhone).
But the question is, can you switch from a static to a dynamic QR code?
The answer is NO. Once the static QR code is created, you cannot switch it to a dynamic one. The static and dynamic QR codes are pretty different from each other.
There are loads of creative ideas, how businesses, municipalities, and non-profits organizations can use QR codes to market and communicate better to their stakeholders.
Error correction level in QR Code means the capability to restore data if the QR code gets dirty or damaged. It's in percentage (%). That shows the percentage (%) portion of the QR code (excluding the corners). If it gets removed or damaged, the QR code remains in working condition.
Several factors such as the operating environment and QR Code size need to be focused on selecting the error correction level.
The users have to choose from the four error correction levels.
To get your QR code. Perform the following steps.
Note: Before using the QR code, don't forget to test it.
There can be several reasons why your QR code is not working correctly.
The vCard is the QR code that people place on their business cards. So that, on scanning, the interested person can get all the business information saved in its smartphone. You can also attach a vCard to your email and edit the data of your vCard using a dynamic QR code.
The answer is yes. The developer Denso Wave published the QR code specification as an ISO standard (ISO/IEC 18004:2000 bzw. ISO/IEC 18004:2006).
It is the process of putting the QR code on some real-world object, mark it with some message or content, or connect it to some landing page. A smartphone can decode/read the QR code with the help of a camera.
The barcode is single-dimensional. That means you can scan the barcode in a line. In contrast, the QR code is two-dimensional and can be read both vertically and horizontally. In QR codes, the information can be encrypted, which makes it more secure than barcodes.
The generated QR codes are static, will work forever, and do not get expired. The only condition is that you can't edit the QR code again.
No, the Wifi QR code needs to be static. Because when the user scans the code, it has no internet connection. For dynamic one, the user has to be connected to the internet.
Note: Protecting users' privacy is our priority.We do not save or reuse their data in any form.