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# Settings
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## How to Access
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- From the Device Screen: tap the tune/sliders icon in the app bar
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- From Contacts or Channels: overflow menu (three-dot) → Settings
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Settings are only accessible while a device is connected.
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## Settings Screen Layout
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The settings screen is a scrollable list of cards:
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1. [Device Info](#device-info)
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2. [App Settings](#app-settings) (link to sub-screen)
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3. [Node Settings](#node-settings)
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4. [Actions](#actions)
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5. [Debug](#debug)
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6. [Export](#export)
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7. [About](#about)
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---
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## Device Info
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A collapsible card showing read-only device information. **Collapsed by default** — tap the header to expand with an animated chevron indicator:
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| Field | Description |
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| Name | Connected device's display name |
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| ID | Device identifier |
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| Status | Connected / Disconnected |
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| Battery | Percentage or voltage (tap to toggle) |
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| Node Name | The node's mesh identity name |
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| Public Key | First 16 hex characters + "..." |
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| Contacts Count | Number of known contacts |
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| Channel Count | Number of configured channels |
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Battery shows an alert icon and orange text when at 15% or below. The toggle only works when millivolt data is available from the firmware.
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---
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## App Settings
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A dedicated sub-screen for app-level preferences (nothing here is sent to the device). All settings persist locally via SharedPreferences.
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### Appearance
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- **Theme**: System / Light / Dark
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- **Language**: System default or one of 18 languages (English, French, Spanish, German, Polish, Slovenian, Portuguese, Italian, Chinese, Swedish, Dutch, Slovak, Bulgarian, Russian, Ukrainian, Hungarian, Japanese, Korean)
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- **Enable Message Tracing**: Shows path trace overlays and extra metadata on messages
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### Notifications
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- **Master enable/disable**: Requests OS permission when enabling
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- **Message notifications**: New direct message alerts
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- **Channel message notifications**: New channel message alerts
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- **Advertisement notifications**: New node discovery alerts
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### Messaging
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- **Clear Path on Max Retry**: Erases the stored routing path after all retries fail
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- **Jump to Oldest Unread**: When opening a chat, scrolls to the oldest unread message instead of the newest
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- **Auto Route Rotation**: Enables weighted routing algorithm. When enabled, expands to show five slider sub-settings (hidden when off):
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- Max Route Weight (1–10, default 5, integer steps)
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- Initial Route Weight (0.5–5.0, default 3.0)
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- Success Increment (0.1–2.0, default 0.5, 0.1 steps)
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- Failure Decrement (0.1–2.0, default 0.2, 0.1 steps)
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- Max Message Retries (2–10, default 5)
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### Battery
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- **Battery Chemistry**: NMC / LiFePO4 / LiPo (per device, used to calibrate percentage from voltage)
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### Translation
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Not shown on web. Controls on-device message translation powered by a locally-downloaded ML model:
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- **Enable Translation**: Translates incoming messages into the selected target language
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- **Translate Composer**: Translates outgoing messages from the target language back before sending
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- **Target Language**: Language to translate into (searchable list; defaults to the app language)
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- **Downloaded Model**: Dropdown to select among already-downloaded translation models
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- **Preset Model**: Download a curated preset model with one tap
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- **Custom Model URL**: Enter a URL to download a custom GGUF-format model; shows download progress and a cancel button
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### Map Display
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- **Show Repeaters**: Toggle repeater markers on map
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- **Show Chat Nodes**: Toggle chat node markers
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- **Show Other Nodes**: Toggle room/sensor markers
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- **Time Filter**: All time / Last 1h / Last 6h / Last 24h / Last week
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- **Units**: Metric / Imperial
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- **Offline Map Cache**: Navigate to tile download screen
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### Debug
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- **App Debug Logging**: Enable the in-app debug log
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---
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## Node Settings
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These settings are sent directly to the connected device firmware.
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### Node Name
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- Opens a dialog with a text field (max 31 characters)
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- Sends the new name to the device
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- Confirmed via snackbar
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### Radio Settings
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Opens a dialog pre-populated with the device's current radio settings. Contains:
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- **Preset dropdown**: 19 regional presets — selecting a preset immediately fills all fields below. Full list: Australia, Australia (Narrow), Australia SA, WA, QLD, Czech Republic, EU 433MHz, EU/UK (Long Range), EU/UK (Medium Range), EU/UK (Narrow), New Zealand, New Zealand (Narrow), Portugal 433, Portugal 869, Switzerland, USA Arizona, USA/Canada, Vietnam, Off-Grid 433, Off-Grid 869, Off-Grid 918
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- **Frequency** (MHz): Free text, validated 300–2500 MHz
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- **Bandwidth**: Dropdown (7.8 / 10.4 / 15.6 / 20.8 / 31.25 / 41.7 / 62.5 / 125 / 250 / 500 kHz)
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- **Spreading Factor**: SF5–SF12
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- **Coding Rate**: 4/5, 4/6, 4/7, 4/8
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- **TX Power** (dBm): Validated 0 to device max (typically 22 dBm)
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- **Client Repeat** toggle: Only shown on firmware v9+; requires frequency to be exactly 433.000, 869.000, or 918.000 MHz (the Off-Grid presets). Save is blocked with a warning if enabled on other frequencies
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### Location
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Opens a dialog pre-populated with the device's current coordinates (if known):
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- Latitude and longitude fields (decimal, 6 decimal places). If only one field is provided, the other uses the device's current value
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- If GPS-capable hardware (detected via `gps` custom variable):
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- GPS Update Interval (seconds, 60–86399, default 900 = 15 minutes). Validated and sent separately before lat/lon
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- Enable GPS toggle (takes effect immediately, not deferred to Save)
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- Validation: lat ±90, lon ±180
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### Contact Settings
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Five toggles controlling which node types are auto-added when heard:
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- Auto-add Chat Users
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- Auto-add Repeaters
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- Auto-add Room Servers
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- Auto-add Sensors
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- Overwrite Oldest (when contact list is full)
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### Privacy Mode
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Opens a confirmation dialog with three buttons: Cancel, Enable, and Disable. Both states can be set from the same dialog regardless of current state. A snackbar confirms which state was applied. When on, the node stops broadcasting its location in advertisements.
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---
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## Actions
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One-tap device operations:
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| Action | Description |
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| Send Advertisement | Floods the mesh with your node's advertisement |
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| Sync Time | Sends current Unix timestamp to the device |
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| Refresh Contacts | Re-requests the full contact list |
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| Reboot Device | Confirmation dialog → reboots the device (shown in orange) |
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---
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## Debug
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Two log viewers accessible via list tiles:
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### BLE Debug Log
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Two views (togglable via segmented button):
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- **Frames view**: Direction icon, description, hex preview, timestamp per frame. Long-press to copy hex.
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- **Raw Log RX view**: Decoded LoRa packets with route type, payload type, path, and summary.
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- Copy-all and Clear buttons in the app bar.
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### App Debug Log
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Structured log entries (Info / Warning / Error), with tag, message, and timestamp.
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- Must be enabled first in App Settings → Debug
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- Copy-all and Clear buttons
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---
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## Export
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Three GPX export options (not available on web):
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| Option | Exports |
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| Export Repeaters | Repeaters and Rooms with GPS coordinates |
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| Export Contacts | Chat contacts with GPS coordinates |
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| Export All | All contacts with GPS coordinates |
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Each creates a `.gpx` file and opens the OS share sheet. Feedback via snackbar for four outcomes: success, no contacts with coordinates, feature not available (web), or error.
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---
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## About
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Shows the standard Flutter about dialog with app name, version, and legal notice.
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