VoidNetwork

Void Network is an immersive mobile application inspired by the Stranger Things universe. It enables cross-dimensional communication through location-based portals and binary-coded signals, blending real-world sensor interactions with a fictional alternate dimension.

Mobile Computing (2024/2025) - Group 8

• 56337 Diogo Pedro
• 56274 Manuel Cardoso
• 64371 Ricardo Costa

Concept

Void Network allows users to interact with others in the Upside Down dimension, with the following key features:

• Binary-Coded Communication
  • Users can communicate through custom binary-coded languages for signal translation
  • Messages can be recorded using taps or luminosity signals, as well as automatically using the language dictionary
  • Messages are received through vibration and flashlight signals and push notifications, even when the app is closed
• Location-based Portals
  • Users can register portals to enable communication between both dimensions if within portal range
  • Using image detection, the app validates the presence of a portal (e.g., a tree) through a photo taken with the camera
  • Portals are displayed in a map along with the users location
• Upside Down State
  • Triggered by low light levels, detected with the luminosity sensor
  • Transitions between light and dark themes to indicate whether the user is in the real world or the Upside Down
  • Changes app functionalities and interactions based on the current state

Technologies

• Programming Language: Kotlin
• UI Framework: Jetpack Compose
• Architecture: Model-View-ViewModel (MVVM)
• Backend Services:
  • Firebase Auth: For user authentication
  • Firebase Real-time Database: For real-time message and portal synchronization
  • Supabase: For file storage (e.g., portal photos)
• APIs:
  • Mapbox: For map visualization and street name fetching
  • ML Kit: For portal (tree) image detection

Sensors

• GPS: Tracks user location and checks portal proximity
• Luminosity Sensor: Detects light levels to change between real-world and Upside Down states and also for building light signals
• Camera: Captures portal images for portal registration

Device Features

• Vibration: Sends binary signals as vibration patterns
• Flashlight: Transmits signals as light patterns
• Push Notifications: Notifies users of received signals, using a foreground service

Documentation

The project documentation can be found in the docs folder.

Promotional Video