Barcode + QR Code Reader using Arduino & QR Scanner Module

𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗗𝗲𝘀𝗰𝗿𝗶𝗽𝘁𝗶𝗼𝗻:
In this video, we will learn how to make our own Barcode + QR Code Reader using Arduino & Embedded QR/Barcode Scanner Module. The DIY QR & Barcode scanner can scan the barcode or QR Code and display the read information on the OLED Display. You can also make a simple ESP32 CAM QR Scanner using the ESP32 Camera Module but it requires a computer screen for visualization.

QR codes are frequently used to track information about products in a supply chain, often used in marketing and advertising campaigns. More recently, they have played a key role in helping to trace coronavirus exposure and slow the spread of the virus. Similarly, Barcodes are applied to products as a means of quick identification. They are used in retail stores as part of the purchase process, in warehouses to track inventory, and on invoices to assist in accounting.

For making Arduino Barcode + QR Code Reader, we will use Maikrt Embedded QR Code Scanning Module. The module supports both USB and UART Serial communication. It is a small 1D/2D codes reader that can be embedded in any device for scanning code to identify other items. It uses the intelligent image recognition algorithm to identify the Barcode and QR Code data.

In this tutorial, we will learn what is QR & Barcode and how the technology works. Apart from this, we will be going through the details of the Maikrt Embedded QR Code Scanning Module. And finally, we will interface the Barcode + QR Code Scanner with Arduino Board and display the read data on OLED Display.

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[Redtrainer]

For anyone who has a problem with the Scanner working but not sending any signal, Please try to check for a Manual in your product's own page.
i had been following this video for 3 weeks with no avail, just to realize later that the pin layout is different even though my scanner looks strikingly similar.

[shinchan]

Heyyy
I really liked it!!!
But can you plz make same circuit using Raspberry Pi?

[Nedenator]

I tried running this for a school project and it wasn't working, I tried using your code directly and then also variations and I still couldn't get it to work, any advice or is there something I could have missed?

Ok so turns out it was either an issue with the particular module or I forgot to scan the set up QR codes, school project works fine.

[franceezlianneacosta]

A pleasant day! Is the UART-TTL set up code applicable to any brand of scanner module? We have followed your tutorial yet our laptop can't receive the data from the scanner module. Thank you!

[ylesiajacen]

Hi i am a beginner but willing to try it out. Is there a separate video to teach us how to connect the circuit diagram like the way shown in this video?i cant tell which spots are for which ones with the small wordings. Much appreciated if anyone can help 🙏 @how to electronics

[neilsun]

Does anyone know why this works on the uno board but not the mega. I have the same code and configuration.

[teobenedict]

hi, can this be integrated with an LCD I2C 16x2 display instead of the OLED?

[summmmit]

Nice project.. Is there any display module for home modular switch board?

[franceezlianneacosta]

Good day! How can we use this as an attendance monitoring system? How can we connect this system to an attendance monitoring app? Thank you so much!

[halalturk]

how do i save the scanned data directly on my computer?

[Al-mansur]

please let me know where you can order the 9 pin terminal line pleaseee reply on my comment asap i badly need it

[kindlevlogs]

Hi, can this possibly be used for attendance monitoring through QR code?

[jigarsagar]

Hi, how much the barcode module cost you ? Where did you buy it from?

[mo.x]

Can i make it read the qr or barcode and display date expired for the product

[S--xcrv]

Heyy, can we connect this display with microcontroller

[mioumitsou]

can this be used to receive barcodes to a python script?

[giulianobardecio]

Hey nice video! Do you know how to turn off the sound whe it scans? or at least turn down the volume. Thank you

[vielbianca]

What size is the 9pin 4 wire terminal line
Is it 1.25mm or 1.0mm pitch

[was]

how can we store the data directly to a compute can someone help me please?
@How To Electronics

[narfinn]

hello can we send qr info of this into database like firebase?
thanks for a response just need it badly :<