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50 lines
2.0 KiB
Markdown
50 lines
2.0 KiB
Markdown
# MeshCore SAR
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Field-ready Search and Rescue app for teams using [MeshCore](https://github.com/meshcore-dev) over Bluetooth Low Energy.
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MeshCore SAR helps teams coordinate in low-connectivity and no-connectivity environments.
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## Highlights
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- Mesh messaging for direct and group coordination
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- On-demand voice and image sharing optimized for low bandwidth
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- Offline-first maps with field overlays and tactical markers
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- GPS tracking, trails, and shareable map drawings
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## Feature Overview
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| Area | What you get |
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|---|---|
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| Messaging | Direct and group chat over mesh, with contact/room awareness from live telemetry |
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| Voice | Push-to-talk voice clips, fetched on demand when play is pressed, auto-play on completion |
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| Images | Camera/gallery image sending, auto-compression, tap-to-load receiving, full-screen viewer |
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| Maps | Street/topo/satellite/terrain layers, offline tile downloads, optional MBTiles import |
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| SAR Operations | Team markers with freshness indicators, SAR markers for incidents and staging points |
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| Tracking | Continuous GPS updates, personal trails, distance/duration trail stats |
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| Trail Interop | GPX export/import for trail sharing and reuse |
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| Tactical Drawing | Line/rectangle drawing, distance measurement, drawing sharing to channel/room |
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## Voice, Image, and Maps
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### Voice
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- Designed for short, urgent field communication
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- Playback requests are on-demand to reduce unnecessary mesh traffic
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- Useful when typing is impractical during operations
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### Images
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- Built for constrained links with pre-send optimization
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- Receiver controls when to fetch payload by tapping the placeholder
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- Supports quick visual verification in the field
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### Maps
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- Supports online and offline workflows
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- Adds SAR context with markers, overlays, and orientation tools
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- Combines location, messaging, and tactical layers in one workflow
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## Permissions (App Use)
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- Bluetooth: mesh device communication
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- Location: team tracking and map position updates
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- Microphone: voice clip recording
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- Camera / Photos: image messaging
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