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  1. 12

    Using a Raspberry Pi with a camera module to read QR codes is a practical way to build low-cost, real-time scanning systems. You can achieve this using Python, OpenCV, and optionally the ZBar library for robust decoding.

    Setup and Installation

    1. Prepare Raspberry Pi OS and Camera

    • Install Raspberry Pi OS on your microSD card.

    • Enable the camera interface:

    sudo raspi-config
    # Interface Options -> Camera -> Enable
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    • Update packages:

    sudo apt update && sudo apt upgrade -y
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    2. Install Dependencies For OpenCV-based detection:

    sudo apt install python3-opencv python3-pip
    pip3 install opencv-contrib-python
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    For ZBar decoding (optional but more accurate):

    pip3 install zbar-py
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    Method 1 – OpenCV QRCodeDetector

    This method uses OpenCV’s built-in QR code detection.

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  2. Hackster.io
    https://www.hackster.io

    Scan QR Codes in Real-Time with Raspberry Pi - Hackster.io

    Use a webcam and a Raspberry Pi 4 to extract information from QR codes and even make your own with Python. Find this and other hardware projects on Hackster.io.
    How QR Codes Work

    Quick-reference (QR) codes are similar to barcodes, as they are able to encode data that is represented by black and white squares. But instead of using a laser, a camera differentiates between the spaces and then sends that information to be pro…

    Generating Them with Python

    There is a Python package called "qrcode" that lets users quickly encode data inside of a QR code and then export it as an image. To install it, run: Then you can import it into a script and generate a PIL image with: Then the image can be export…

    Setting Up The Raspberry Pi 4

    I chose to use a Raspberry Pi 4 due to how powerful it is, which can give the application a bit of a boost in speed when reading images. I installed Raspbian on it by downloading the OS image and flashing it using Balena Etcher. Next, I connected t…

  3. Github
    https://github.com › Circuit-Digest › qr-code-scanner-raspberry-pi-opencv

    GitHub - Circuit-Digest/qr-code-scanner-raspberry-pi-opencv

    QR Code Scanner Using Raspberry Pi and OpenCV A DIY QR Code Scanner project using Raspberry Pi, OpenCV, and ZBar library to scan and decode QR codes in real-time with a camera module.

  4. Core Electronics
    https://core-electronics.com.au › guides › QR-codes-raspberry-pi

    Real Time Scanning and Storing QR Codes With Raspberry Pi and …

    • See More

    Feb 16, 2023 · Any custom QR codes created by this generator will be read by our Raspberry Pi system. This will use Open-CV which is a huge resource that helps solve real-time computer vision and image …

  5. diyprojectslabs.com
    https://diyprojectslabs.com › qr-scanner-using-raspberry-pi-…

    Step-by-Step Guide To Create QR Scanner Using …

    In This Text, We Will Be Discussing How To Create QR Scanner Using Raspberry Pi 3/4 & OpenCV. This Qr Scanner Will Be Able To Read Any Type Of QR Codes.

  6. Cytron.io
    https://www.cytron.io › tutorial › reading-qr-code-using-rasp…

    Reading QR Code Using Raspberry Pi Camera - Cytron …

    Jul 22, 2020 · The QR system became popular due to its fast readability and greater storage capacity compared to standard UPC barcodes. In this tutorial, I will share …

  7. peppe8o
    https://peppe8o.com › read-qr-codes-from-raspberry-pi-wit…

    Read QR Codes from Raspberry PI with Pyzbar and Python

    Sep 2, 2023 · Reading QR codes from Raspberry PI with Pyzbar (python) with a simple camera. Detailed script with also a usage example

  8. Circuit Digest
    https://circuitdigest.com › microcontroller-projects › qr-cod…

    QR Code Scanner using Raspberry Pi and OpenCV

    Jan 27, 2021 · In this DIY project tutorial, we are going to build a Raspberry Pi based QR Code Scanner using OpenCV and ZBar library.

  9. GeeksForGeeks
    https://www.geeksforgeeks.org › python › webcam-qr-code-…

    Webcam QR code scanner using OpenCV - GeeksforGeeks

    Jan 4, 2023 · In this article, we're going to see how to perform QR code scanning using a webcam. Before starting, You need to know how this process is going to …

  10. Engineers Garage
    https://www.engineersgarage.com › raspberry-pi-camera-qr …

    Raspberry Pi camera QR-code scanning - Engineers Garage

    Feb 16, 2021 · This tutorial will teach you how to scan QR codes using the Raspberry Pi module and the official Raspberry Pi camera.

  11. RaspberryTips
    https://raspberrytips.com

    How to Use The Raspberry Pi Camera With Python in 2026

    Mar 23, 2026 · Controlling the camera module is a typical project for any Raspberry Pi owner. But with the latest Raspberry Pi OS version and the new camera library, …

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