Timeframe

A web application for displaying information from various APIs on digital signage.

Project goals

• Serve as a test bed for learning new technologies.
• Long term: I expect to run this application for years, if not decades.
• Stability: I expect the application to run without maintenance indefinitely.
• Availability: 100% uptime.
• Fault tolerance: the application functions when no internet connection is available.

Architecture

• Signage endpoints
  • Visionect 13" displays (/thirteen)
    • Fetched by Visionect Software Suite running on local network and displayed on 13" Place and Play devices. Fetch interval is currently 10m.
  • Boox Mira Pro (/mira)
    • Fetched by a client Mac Mini with a Boox Mira Pro (25.3" 3200x1800px e-Paper display) running Google Chrome full screen.
    • Self-refreshes entire screen every 2s.

Local development

Setup

1. bundle install
2. Copy .config.ymlfrom a friend.
3. rails s
4. Visit http://localhost:3000

Testing

bundle exec rake

Deploying

To fetch the latest version: git fetch --all && git reset --hard origin/main

To upgrade Visionect: docker-compose pull && docker-compose up -d

Rails server: RAILS_ENV=production rails s -p 80 -b 0.0.0.0 --no-log-to-stdout