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# MeshCore SAR
<p align="center">
<img src="./icon.png" alt="MeshCore SAR icon" width="120" />
</p>
Field-ready Search and Rescue app for teams using [MeshCore](https://github.com/meshcore-dev) over Bluetooth Low Energy.
<h1 align="center">MeshCore SAR</h1>
MeshCore SAR helps teams coordinate in low-connectivity and no-connectivity environments.
<p align="center">
Field-ready Search and Rescue coordination over <a href="https://github.com/meshcore-dev">MeshCore</a> + BLE
</p>
<p align="center">
<img alt="Platform" src="https://img.shields.io/badge/platform-iOS%20%7C%20Android-blue" />
<img alt="Mode" src="https://img.shields.io/badge/offline-first-success" />
<img alt="Use case" src="https://img.shields.io/badge/use%20case-SAR-orange" />
</p>
MeshCore SAR helps teams coordinate in low-connectivity or no-connectivity environments with messaging, voice, images, maps, and live location context in one app.
## Highlights
- Mesh messaging for direct and group coordination
- On-demand voice and image sharing optimized for low bandwidth
- Offline-first maps with field overlays and tactical markers
- GPS tracking, trails, and shareable map drawings
- Fast mesh messaging for direct and group coordination
- On-demand voice and image transfer optimized for constrained links
- Offline-first mapping with tactical overlays and SAR markers
- Live team tracking, trails, and shareable map drawings
## Screenshots
<p align="center">
<img src="./screenshots/ios/IMG_2953.PNG" alt="Map view with live team context" width="19%" />
<img src="./screenshots/ios/IMG_2954.PNG" alt="Compass and navigation view" width="19%" />
<img src="./screenshots/ios/IMG_2955.PNG" alt="Contacts and repeaters list" width="19%" />
<img src="./screenshots/ios/IMG_2956.PNG" alt="Messages with voice and image cards" width="19%" />
<img src="./screenshots/ios/IMG_2957.PNG" alt="Quick actions sheet for SAR, voice, and image" width="19%" />
</p>
## Feature Overview
@@ -27,19 +49,25 @@ MeshCore SAR helps teams coordinate in low-connectivity and no-connectivity envi
## Voice, Image, and Maps
### Voice
- Designed for short, urgent field communication
- Playback requests are on-demand to reduce unnecessary mesh traffic
- Useful when typing is impractical during operations
- Built for short, urgent field communication
- On-demand playback fetch reduces unnecessary mesh traffic
- Ideal when typing is impractical during active operations
### Images
- Built for constrained links with pre-send optimization
- Receiver controls when to fetch payload by tapping the placeholder
- Supports quick visual verification in the field
- Pre-send optimization for constrained links
- Tap-to-load receiving keeps channels lightweight
- Full-screen view supports rapid field verification
### Maps
- Supports online and offline workflows
- Adds SAR context with markers, overlays, and orientation tools
- Combines location, messaging, and tactical layers in one workflow
- Works in both online and offline workflows
- SAR context with team markers, incident markers, and orientation tools
- Combines location, messaging, and tactical layers in one place
## Built For
- Search and Rescue field teams
- Incident command and coordination roles
- Operators working in weak/no cellular coverage
## Permissions (App Use)