Open-source Flutter client for MeshCore LoRa mesh networking devices. MeshCore Open is a cross-platform mobile application for communicating with MeshCore LoRa mesh network devices via Bluetooth Low Energy (BLE). The app enables long-range, off-grid communication through peer-to-peer messaging, public channels, and mesh networking capabilities. Features Core Functionality Direct Messaging: Private encrypted conversations with individual contacts Public Channels: Broadcast messages to channel subscribers on the mesh network Contact Management: Organize contacts, track last seen times, and manage conversation history Contact Groups: Create custom groups to organize your mesh network contacts Message Reactions: React to messages with emoji responses Message Replies: Thread conversations with inline reply functionality Mesh Network Path Visualization: View routing paths and signal quality for each contact Route Management: Manual path overriding and automatic route rotation Signal Metrics: Real-time SNR (Signal-to-Noise Ratio) tracking Node Discovery: Automatic detection of nearby mesh nodes Repeater Support: Connect to and manage repeater nodes for extended range Map & Location Live Map View: Real-time visualization of mesh network nodes on an interactive map Node Filtering: Filter by node type (chat, repeater, sensor) and time range Location Sharing: Share GPS coordinates and custom markers with contacts Offline Maps: Download map tiles for offline use in remote areas MGRS Coordinates: Support for Military Grid Reference System coordinate format Device Management BLE, USB, TCP Connection: Scan and connect to MeshCore devices via Bluetooth, USB or TCP Device Settings: Configure radio parameters, power settings, and network options Battery Monitoring: Real-time battery status with chemistry-specific voltage curves Firmware Updates: Over-the-air firmware updates via BLE (coming soon) Repeater Hub CLI Access: Full command-line interface to repeater nodes Settings Management: Configure repeater behavior, power limits, and network settings Statistics Dashboard: View repeater traffic, connected clients, and system health Remote Management: Administer repeaters from anywhere on the mesh network Technical Details Architecture Framework: Flutter 3.38.5 / Dart 3.10.4 State Management: Provider pattern with ChangeNotifier BLE Protocol: Nordic UART Service (NUS) over Bluetooth Low Energy Storage: Local SQLite database for messages and contact data Encryption: End-to-end encryption for private messages using the MeshCore protocol Configuration App Settings Theme: System default, light, or dark mode Language: Use one of 15 languages (English, Chinese, French, Spanish, Portuguese, German, Dutch, Polish, Swedish, Italian, Slovak, Slovene, Bulgarian, Russian, Ukrainian) Notifications: Configurable for messages, channels, and node advertisements Battery Chemistry: Support for NMC, LiFePO4, and LiPo battery types Message Retry: Automatic retry with configurable path clearing Device Settings Radio Power: Transmit power adjustment (10-30 dBm) Frequency: LoRa frequency configuration Bandwidth: Channel bandwidth selection Spreading Factor: Range vs. speed trade-off Network ID: Mesh network identifier