Add screenshot and update README

Author: fotiDim

.gitignore

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 *.swp
 .DS_Store
 .atom/
+.build/
 .buildlog/
 .history
 .svn/
+.swiftpm/
 migrate_working_dir/
 
 # IntelliJ related

README.md

@@ -1,89 +1,91 @@
-# Universal BLE
+Universal BLE
 
 Universal BLE is an open-source developer tool for exploring and testing Bluetooth Low Energy (BLE) devices. It empowers developers, engineers, and hobbyists to discover, connect, and debug BLE devices with a consistent cross-platform experience.
 
-Built on the [**universal_ble**](https://github.com/Navideck/universal_ble) Flutter plugin ([pub.dev](https://pub.dev/packages/universal_ble)) — one of the most comprehensive cross-platform BLE solutions available.
+Built on the universal_ble Flutter plugin (https://pub.dev/packages/universal_ble) — one of the most comprehensive cross-platform BLE solutions available.
 
----
+Scanner app screenshot: assets/scanner-screenshot.png
 
-## Download
 
-[**Universal BLE**](https://apps.apple.com/app/id6756538573) — [App Store](https://apps.apple.com/app/id6756538573) · [Play Store](https://play.google.com/store/apps/details?id=com.navideck.universalble) · [Web](https://navideck.github.io/universal_ble)
+Download
+
+Universal BLE — App Store: https://apps.apple.com/app/id6756538573 · Play Store: https://play.google.com/store/apps/details?id=com.navideck.universalble · Web: https://navideck.github.io/universal_ble
 
 <a href="https://apps.apple.com/app/id6756538573"><img src="https://developer.apple.com/assets/elements/badges/download-on-the-app-store.svg" alt="Download on the App Store"></a>
 <a href="https://play.google.com/store/apps/details?id=com.navideck.universalble"><img src="assets/play-badge.svg" alt="Get it on Google Play" height="40"></a>
 
----
 
-## Key Features
+Key Features
 
-### Device Discovery
+Device Discovery
 
-- Scan for nearby BLE devices in real-time
-- Filter devices by services, manufacturer data, or name prefixes
-- View device information, signal strength, and connection status
-- Access already connected system devices
+  Real-time scanning — Discover nearby BLE devices with live results; scanning continues when you open a device's detail screen
+  Flexible filters — Filter by service UUIDs, name prefix, or manufacturer data (comma- or newline-separated)
+  Saved filter presets — Save, rename, and reuse filter combinations; filters persist across app sessions
+  Search — Search devices by name or by company name (resolved from manufacturer data via Bluetooth company identifiers)
+  Sort options — Sort the device list by RSSI, last seen, or name
+  Company identification — Show company name from manufacturer data using the Bluetooth SIG company identifier list
+  RSSI and advertisements — View signal strength (RSSI), last advertisement (name, RSSI, timestamp), and a list of received ads that flashes on new advertisements
+  System devices — On supported platforms, view and connect to devices already connected at the system level (with optional service filter)
 
-### Connection Management
+Connection Management
 
-- Connect and disconnect from BLE peripherals
-- Monitor connection state changes in real-time
-- Support for multiple simultaneous connections
-- Automatic reconnection handling
+  Connect and disconnect — Connect to and disconnect from BLE peripherals with one tap
+  Auto-reconnect — Optional auto-connect for reconnection when a device becomes available again
+  Connection state — Real-time connection state updates
+  Multiple connections — Support for multiple simultaneous device connections
 
-### Service & Characteristic Exploration
+Service & Characteristic Exploration
 
-- Discover all services and characteristics on connected devices
-- Browse GATT services with detailed UUID information
-- View characteristic properties and descriptors
-- Intuitive interface for navigating device capabilities
+  GATT discovery — Discover all services and characteristics on connected devices with detailed, human-readable formatting
+  Favorite services — Mark services as favorites; they appear first in the list (system services last)
+  Property filters — Filter characteristics by property (read, write, notify, indicate, etc.) with visual filter chips
+  Navigation — Previous/next buttons to move between characteristics without collapsing the list
+  Copy services — Copy the full discovered GATT layout (e.g. for documentation or debugging) from the Services panel header
 
-### Data Operations
+Data Operations
 
-- Read characteristic values in real-time
-- Write data to characteristics (with or without response)
-- Subscribe to notifications and indications
-- Monitor value changes with live updates
+  Read — Read characteristic values on demand
+  Write — Write data to characteristics (with or without response)
+  Subscribe — Subscribe to notifications/indications per characteristic or "subscribe to all" for notifiable characteristics
+  Live updates — Incoming values are shown in the logs with timestamps; clear or copy the full log
 
-### Pairing & Security
+Pairing & Security
 
-- Initiate pairing with BLE devices
-- Check pairing status and monitor pairing state changes
-- Support for encrypted characteristics
-- Unpair devices when needed
+  Pair and unpair — Initiate pairing and unpair devices when supported
+  Pairing state — Monitor pairing state changes in real time
 
-### Advanced Features
+Advanced & Developer Options
 
-- Request MTU (Maximum Transmission Unit) for optimized data transfer
-- Command queue system for reliable operation
-- Configurable timeouts for all operations
-- Comprehensive error handling with detailed error codes
-- UUID format agnostic (supports all UUID formats)
-- Detailed logging for debugging BLE operations
+  MTU — Request a larger MTU (e.g. 247) for better throughput where supported
+  Command queue — Choose queue type in the drawer: Global (single queue), Per Device, or None (parallel)
+  Configurable timeout — Set operation timeout (e.g. 10 seconds) for all BLE operations
+  Logs — Operation log with copy-all and per-entry clear; comprehensive error handling with detailed codes
+  UUID formats — Accepts common UUID string formats (e.g. with or without hyphens)
 
-### Cross-Platform Support
+UI & Cross-Platform
 
-- Native support with consistent API across all platforms
-- Platform-specific optimizations where needed
+  Responsive layout — Adapts to mobile, tablet, and desktop (e.g. breakpoints at 600px and 1000px)
+  Bluetooth status — Bluetooth availability icon with tooltip (tap on mobile to see state)
+  Permissions — Guided permission flow where required (e.g. location for BLE on Android); re-checks on app resume
+  Cross-platform — Built with the universal_ble plugin for consistent behavior across supported platforms
 
----
 
-## Perfect For
+Perfect For
 
-- Developers building BLE-enabled applications
-- Engineers testing and debugging BLE devices
-- Hobbyists exploring IoT and smart device capabilities
-- Students learning about Bluetooth Low Energy technology
-- QA teams validating BLE device functionality
+  Developers building BLE-enabled applications
+  Engineers testing and debugging BLE devices
+  Hobbyists exploring IoT and smart device capabilities
+  Students learning about Bluetooth Low Energy technology
+  QA teams validating BLE device functionality
 
----
 
-## Why Universal BLE?
+Why Universal BLE?
 
-Universal BLE is built on the open-source [**universal_ble**](https://github.com/Navideck/universal_ble) Flutter plugin, one of the most comprehensive cross-platform BLE solutions available. With support for all major platforms and a unified API, you can develop and test BLE applications with confidence.
+Universal BLE is built on the open-source universal_ble Flutter plugin (https://github.com/Navideck/universal_ble), one of the most comprehensive cross-platform BLE solutions available. With support for all major platforms and a unified API, you can develop and test BLE applications with confidence.
 
 Whether you're developing a new BLE product, debugging an existing device, or simply exploring Bluetooth Low Energy, Universal BLE provides the tools you need.
 
-### Open Source & Free
+Open Source & Free
 
-This app is built on open-source technology and is free to use. The underlying plugin is available under the **BSD 3-Clause License**, making it suitable for both commercial and personal projects.
+This app is built on open-source technology and is free to use. The underlying plugin is available under the BSD 3-Clause License, making it suitable for both commercial and personal projects.