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2024

Digital signage is a powerful way to communicate information visually, whether for advertising, announcements, or general information displays. The Raspberry Pi 5, with its capabilities and affordability, is an excellent choice for a digital signage solution. If you are wanting to learn how to setup a Raspberry Pi for digital signage, then this article will provide a comprehensive guide to installing and setting up Raspberry Pi OS, along with either Chromium or Firefox, for digital signage applications.

Hardware Requirements

  • Raspberry Pi 5: The latest model for optimal performance.
  • MicroSD Card: At least 16GB (32GB or larger recommended) with Class 10 or higher speed rating.
  • 5V 3A USB-C Power Supply: To provide adequate power.
  • HDMI Cable: To connect the Raspberry Pi to your display (use micro HDMI to standard HDMI if required).
  • Monitor/Display: Any screen with HDMI input.
  • Keyboard and Mouse: For initial configuration and setup.
  • Internet Connection: Either Wi-Fi or Ethernet for downloading software and updates.
  • Optional Case and Heatsinks: For protection and heat management.

Software Requirements

  • Raspberry Pi OS (Desktop version): The official operating system with a graphical user interface.
  • Web Browser: Either Chromium or Firefox for displaying content.
  • Digital Signage Software: Consider software like PyroSign for more sophisticated signage capabilities.

Installation Steps

Step 1: Download and Install Raspberry Pi OS

  1. Download Raspberry Pi Imager:
  2. Install Raspberry Pi Imager:
    • Follow the installation instructions specific to your platform.
  3. Create Bootable MicroSD Card:
    • Insert the MicroSD card into your computer.
    • Open Raspberry Pi Imager.
    • Select “CHOOSE OS” and choose “Raspberry Pi OS (32-bit)”.
    • Click “CHOOSE SD CARD” and select your MicroSD card.
    • Click “WRITE” to flash the OS onto the card.

Step 2: Initial Setup of Raspberry Pi

  1. Insert the MicroSD Card: Place the card into your Raspberry Pi.
  2. Connect Peripherals:
    • Connect the HDMI cable from the Raspberry Pi to the monitor.
    • Attach the keyboard and mouse.
  3. Power Up: Connect the power supply to turn on the Raspberry Pi.
  4. Complete the Setup Wizard:
    • Follow the on-screen prompts to select your language, time zone, and keyboard layout.
    • Connect to your Wi-Fi network (if applicable).
    • Allow the system to update when prompted.

Step 3: Installing Firefox as an Alternative Browser (Optional)

On Raspberry Pi OS, Chromium comes pre-installed, making it the go-to choice for many. However, if you're looking for a Non-Chromium alternative, Firefox can't be beat and is our go to in testing. Here are some instructions for installing it on the Raspberry Pi 5.

Installing Firefox Using The Start Menu

  1. Click On The Raspberry Pi Icon on the taskbar.
  2. Go To Preferences > Add / Remove Software
  3. Search For: Firefox and install the package.

Installing Firefox Using The Terminal

  1. Open the Terminal (if not already open).
  2. Install Firefox: Enter the command: 
    sudo apt install firefox-esr
  3. Launch Firefox: Firefox will also appear in the Raspberry Pi menu under “Internet”.

Step 4: Configure for Kiosk Mode

What is Kiosk Mode?

Kiosk mode is a specialized browser setting that allows the application to run in a full-screen, locked-down mode, effectively turning the browser into a dedicated interface for displaying content. In kiosk mode, users cannot access other applications, menus, or the desktop environment, ensuring that the display is solely focused on the intended content. This is ideal for digital signage as it prevents any interruptions or distractions from user interactions.

Why Choose Kiosk Mode?

  • Enhanced Security: Kiosk mode restricts access to the operating system and other applications, minimizing the risk of unwanted interactions or tampering.
  • Focus on Content: It ensures that only the specified content is displayed, without distractions from other applications or the desktop interface.
  • Automatic Restart: If the browser crashes or is closed, kiosk mode can be configured to automatically restart the browser, maintaining uninterrupted content display.
  • Simplified User Experience: Users do not have to navigate through multiple applications or menus, making the signage experience straightforward and effective.

Configuring Chromium for Kiosk Mode

  1. Create a Kiosk Script: Open the terminal and create a new script: 
    nano ~/start-kiosk.sh
  2. Add Kiosk Mode Command: In the text editor, add the following lines: 
    #!/bin/bash
/usr/bin/chromium-browser --kiosk --no-sandbox --disable-infobars <your_content_url>
    Replace <your_content_url> with the URL you wish to display. To setup for PyroSign: replace it with https://pyrosign.com/connect .
  3. Save and Exit: Press Ctrl + X, then Y, and Enter to save the script.
  4. Make the Script Executable: Run: 
    chmod +x ~/start-kiosk.sh
  5. Set Up Autostart: Open the autostart configuration: 
    nano ~/.config/lxsession/LXDE-pi/autostart
    Add the following line at the end of the file: 
    @bash /home/pi/start-kiosk.sh
  6. Save and Exit: Press Ctrl + X, then Y, and Enter.

Configuring Firefox for Kiosk Mode

  1. Create a Firefox Kiosk Script: In the terminal, create another script: 
    nano ~/start-firefox-kiosk.sh
  2. Add Kiosk Mode Command: Enter the following lines: 
    #!/bin/bash
/usr/bin/firefox-esr --kiosk <your_content_url>
    Replace <your_content_url> with the URL you wish to display. To setup for PyroSign: replace it with https://pyrosign.com/connect .
  3. Save and Exit: Press Ctrl + X, then Y, and Enter.
  4. Make the Script Executable: Run: 
    chmod +x ~/start-firefox-kiosk.sh
  5. Set Up Autostart for Firefox: Open the autostart configuration: 
    nano ~/.config/lxsession/LXDE-pi/autostart
    Comment out the Chromium line (if you added it) and add the following line: 
    @bash /home/pi/start-firefox-kiosk.sh
  6. Save and Exit: Press Ctrl + X, then Y, and Enter.

Step 6: Reboot and Test

  1. Reboot the Raspberry Pi: Click on the Raspberry Pi logo in the top-left corner > Shutdown > Reboot.
  2. Verify Kiosk Mode: After rebooting, the chosen browser (Chromium or Firefox) should automatically launch in kiosk mode, displaying the specified content.

Conclusion

By following these steps, you have successfully learned how to setup a Raspberry Pi for digital signage. This setup allows you to display a variety of content, from websites to multimedia presentations. The use of kiosk mode ensures a focused, uninterrupted display, making it ideal for signage applications. You can further customize your signage with dedicated software to create a more dynamic display. Enjoy your new digital signage solution!