After creating the QR code Challenge, do make sure that your users are able to scan the QR code and complete the Challenge.
Here are some tips to ensure that your QR code is visible and readable.
QR Code Printing
1) Customizing your QR code wisely
Branding is important but make sure you do not go overboard with customizing the image. The scanner may end up not being able to pick up QR codes with a complex design. The QR code should still be recognizable by your users, and more importantly by the devices that they are using.
2) Picking the right contrast
You can get creative when customizing your QR code. But, do make sure that the image background has good contrast with the QR code.
Also, please do avoid creating negative QR code, i.e. bright colored QR code on a dark background. Many a time, when negative QR codes are created, the contrast tends to be weak hence causing reading of QR code to fail.
Picking the right contrast is especially important in order to cater to the different mobile devices which have different camera quality and sensitivity.
3) Using High-Quality Images
Always make sure the QR code images are sharp and clear, i.e. not blurry or pixelated, especially if the QR codes are printed.
TIP: When saving a copy of the QR code image from the Admin Dashboard, avoid taking a screen capture or a photo of the code. Instead, download the QR code directly to preserve the image quality. You may design or resize it however you like.
Using high-quality images is especially important in order to cater to the different mobile devices which have different camera quality and sensitivity.
4) Picking the right size
QR codes printed too small tend to end up unnoticeable or unscannable. Preferably, have your QR codes at least 3cm by 3cm (about 1.5 inches by 1.5 inches).
As you decide the size of your QR code, do consider the distance from which your users are scanning the QR code. If you are expecting users to scan the code from a further distance, do enlarge the QR code. The following formula gives the ideal size and according to the distance of the scan:
Size of your QR code = Distance from the QR code to the scanner / 10
QR Code Placement
1) Picking the right display material
Whenever possible, do print or display QR codes on flat surfaces to ensure that QR codes are readable. Also, do avoid displaying QR codes on materials that reflect too much light or easily distorts the image.
Please do avoid displaying the QR codes on surfaces of electronic devices (i.e. laptop, mobile devices) as the glare and reflection from surround light sources may affect the readability of the codes.
2) Optimize QR code visibility
Do make sure that the QR codes are both readable and visible, by:
- Placing them in well-lit areas
- Placing them in stationary surfaces (i.e. non-moving)
- Placing them at a comfortable height which is easily accessible for users to scan
2) Ensure the area has a stable internet connection
Scanning of QR code and completing the QR challenge requires network connectivity. Do make sure that the QR code is set up in an area with a stable internet connection.