Scan Qr Codes With Raspberry Pi Pico
Made by fin-expert / Communication / Productivity / Robotics / Sensors
About the project
To extract information from QR codes and use a Barcode & QR Code HAT and a Raspberry Pi Pico.
Project info
Difficulty: Easy
Platforms: Raspberry Pi
Estimated time: 1 hour
License: GNU General Public License, version 3 or later (GPL3+)
Items used in this project
Story
To extract information from QR codes and (even create your own barcode & QR Code using Python), use a Barcode & QR Code HAT & Raspberry Pi Pico
What Are QR Codes and How Do They Work?QR codes, which are similar to barcodes in that they canencode data represented by black and white squares, are similar to QR codes.Instead of employing a laser, a camera detects the difference between thespaces and delivers the data to be processed. They're made up of multiple hugesquares that help align and place the QR code's boundaries, as well asformatting columns, a version number, and the data itself.
Credit : Arduino “having11” Guy
Credit : Arduino “having11” Guy
Pico QR Code & Barcode Reader - VisitMain PageThey can encode a wide range of data types, includingintegers, characters, and binary, allowing for a wide range of creativeapplications. Advertisers frequently include URLs that drive users to theirwebsites. Other businesses may use a QR code to encode critical product data, such as a serial number, and attach it to a component.
Create Barcodes & QR Codes with Python Creating Barcode In PythonI’ve already created a blog on “Create Barcodes with Pure Python”
Creating QR Code in PythonUsers can easily encode data within a QR code and thenexport it as a picture using the Python tool "qrcode." Run thefollowing command to install it:
pip3 installqrcode[pil]
Then you can use it in a script to create a PIL picture using:
import qrcode
code = qrcode.make('Hello world!')The image may then be saved as a file by using
code.save(<filename>.png)The QRCode class allows you to further personalise yourcodes with settings like size, error correction amount, version, and borderwidth.
>>> import qrcode
>>> code = qrcode.make('Hello world')
>>> code.save('hellocode.png')The QRCode class allows you to further personalise your codeswith settings like size, error correction amount, version, and border width.
>>> qr = qrcode.QRCode(version=20,error_correction=qrcode.constants.ERROR_CORRECT_M, box_size=10, border=4)
>>> qr.add_data('https://shopmakergenix.blogspot.com')
>>> qr.make(fit=True)
>>> img =qr.make_image(fill_color="black", black_color="white")
>>> img.save('url_example.png')After you've made all of your personalised QR codes, combinethem into a single sheet and print it.
Setting Up the Raspberry Pi Pico
Pico Barcode HAT - Kickstarter
The default mode is USB-KBW, or USB keyboard mode, which sends data to the host by simulating a USB keyboard.
Scan Me
Scan Me
Scan the barcode above and you’re ready to scan 20 DifferentBarcode Symbiology
Pico Barcode HAT
Credits
fin-expert
Tech Writer | Maker of Random Contraptions | Education | Learning — #Robotics #RaspberryPi #DIYElectronics
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