Qr code generator, scannen, reader promo code

Mã QR máy phát điện, máy quét, đầu đọc mã khuyến mãi, giải mã mã QR & tạo mã qr

- What is qr code ?

QR code is the a type of matrix barcode (or two-dimensional barcode) first designed for the automotive industry in Japan.

A barcode is a machine-readable optical label that contains information about the item to which it is attached. A QR code uses four standardized encoding modes (numeric, alphanumeric, byte/binary, and kanji) to efficiently store data; extensions may also be used.

A QR code consists of black squares arranged in a square grid on a white background, which can be read by an imaging device such as a camera, and processed using Reed–Solomon error correction until the image can be appropriately interpreted.

The required data is then extracted from patterns that are present in both horizontal and vertical components of the image.

- How to scan qr code?

It's really easy to scan QR codes on

How to scan a QR code on phone Android.

Step one: Open up the Qr code app

Step two: Hold the device's up to the QR code

Step three: No need to hit the shutter button, your app will automatically recognize the QR code and provide you with an on-screen notification. (Make sure you have mobile signal or you're connected to Wi-Fi.)

Step four: Tap the notification to be taken to the destination of the QR code.

- Qr code maker?

You can export your created QR code into many formats.

Currently supported: PNG, JPG/JPEG, GIF, SVG, EPS, PDF.

- Promo code ?

QR coupon codes are a great benefit to both the customer and the company who made the QR code. QR coupon codes provide an interactive and new way for the customer to save money while the business is simultaneously promoted. One of the great thing about coupon codes is that they can be easily shared from one person to another. Not everyone has to scan the original QR code. One person can scan or download a QR coupon code from a store and then a friend can scan that QR code for the other person's phone screen. In this way, a coupon code is much more beneficial then handing out or sending out coupons to someone's mailbox or email inbox. This coupon can recreate itself on anyone else's mobile device.

Another great way that these coupon codes help the consumer is they no longer have to remember to bring a coupon with them to the store. The coupon code is stored in their phone, and most people always carry their phones on them. By making coupons more convenient for the consumer, they will be more likely to use them at the store.