Using QR Codes – We show you what a QR Code can do!
QR Code is the abbreviation for Quick Response Code and stands for a quick way to a response or answer that can be retrieved with a code. The QR Code originated in the automotive industry in 1994, when a solution was sought for better marking of various car components. A solution that could store more characters than barcodes. The software developers at Denso invented the QR code process. The subsidiary Denso Wave took over the official development of the QR code technology. At that time, QR codes were used exclusively in production logistics, but nowadays they are used across a wide range of industries.
What is used to read QR codes?
Linear barcodes are often found on a lot of packaging in shops, because they are needed for price recognition at the checkout, among other things. The linear barcode is read with a laser barcode scanner. If you want to scan QR codes, you must make sure that the entire code is visible in the reader. In many situations, the smartphone is perfectly sufficient. Some smartphones already have the option to scan QR codes included in the camera settings, others do not. In the latter case, an app would be needed to read and use the code. If you want to use two-dimensional codes in your shop, you need a laser barcode scanner that has this function (example: Honeywell GRANIT-1991i barcode scanner).
So, what can a QR code convey?
As already mentioned, the two-dimensional codes can be used in various industries, but they can also be beneficial in the private sphere. Those who use QR codes can provide interested users with quick access to a wide range of information in various forms. They are often used to…
- …refer people to a website (URL).
- …make it easier for people to create a contact with a vCard (vCard data).
- …present information texts to people (text).
- …give people a faster connection to the Internet (Wi-Fi).
- …navigate people to an account in the social media channels (e.g., Facebook).
- …show people a picture (image).
- …facilitate transactions for people (payment).
- …allow people to access or download a PDF (PDF).
What can a QR code store?
If a code is being generated, different versions can be realized. The smallest QR codes (version 1) use at least 17 modules and the largest (version 40) can use up to 7089 modules per code to embed the desired data. This means that information content is embedded in codes that is at least 7 bytes or a maximum of 2,956 bytes in size. The so-called modules, or units, are the black lines and dots you see in the middle of the typical square. The more data is stored, the more modules are needed. It is also important to know that the sum of the modules increases the higher the error correction is to be.
Error correction serves the purpose of continuing to use a code even if it becomes somewhat corrupted. Error correction is divided into four levels, which are present in every version. The lowest level of error correction is “H” and the highest level is “L”. So: The higher the error correction level selected for generation, the more likely it is to be able to use the code even after it has been damaged.
How do I create QR codes?
If you want to create a QR code, you can use websites or apps. Many providers offer you some options for free. Once you have found the right provider, you can usually get started quickly. When generating QR codes, it is important to consider the purpose for which you need it. Do you need a static code or a dynamic one? The latter are more often chargeable, but they are justified in their usefulness. Let’s look at two examples of use of the two variants.
Dynamic QR Code – Example
Let’s say you want to include QR codes on your new business cards. The people who receive your business cards should be led to your website with the code. Among other things, the code is generated with a short address that leads to the target URL you selected. If something changes at this target URL address, this has no effect on the code. The people who scan your code after the change can be redirected to the new destination URL. The short address embedded in the code remains unchanged. In addition, dynamic QR codes look “cleaner” because they take up less space in the image.
Static QR Code – Example
You are planning a marketing campaign for your company, which is to be completed at a fixed point in time. Regardless of the goal of the marketing campaign, its message is still clear:
“Only this weekend, everyone who uses our QR code to visit our website will be given a shopping voucher for our online store. The activation takes place automatically.”
This is where it makes sense to have the main destination URL embedded in the QR Code. The whole image will look fuller because it also has more characters integrated with a long URL, but, and this is what I’m getting at, the code becomes unusable as soon as you change anything about the destination URL. Of course, so that your customers don’t get angry after the fact that they missed something, you can put this code where you can remove it quickly.
Use QR Codes with PayPodo
PayPodo also takes advantage of some of the uses of QR codes. Here you get three insights:
- The QuickPay payment option will be available for merchants in the online store where PayPodo is integrated as a payment solution. If the customer has selected PayPodo as a payment option, he will be shown a QR code in addition to the login screen, which can be scanned with the customer´s PayPodo app to shorten the login process and thus speed up the payment process. The customer only has to confirm the purchase in the app wit one click and the goods from the shopping cart are already paid for.
- As a merchant, you will be able to receive transactions by placing the QR payment codes generated by PayPodo in your store at the checkout. Customers will be able to pay quickly and securely using the QR code via the PayPodo app.
- QR code technology is used in two-factor authentication to allow you to log in to your PayPodo dashboard. Here, the security of logging in is increased as there is no need to enter a password. So it is much more difficult to spy out the password and you don’t have to know your password yourself, so it can be very long, complicated and thus secure without any limitations in convenience.
If you want to know if and how to set the function, for the general use of QR codes on your device, here are some helpful guides: https://www.qr-code-generator.com/guides/
QR codes can also be created and read in other colors if the contrast between the colors used is strong enough.