Development of SensorLab Application by Didarul Alam RahatDevelopment of SensorLab Application by Didarul Alam Rahat

Development of SensorLab Application

Didarul Alam Rahat

Completed work

Mobile Engineer

Dart

Flutter

GitHub

Mobile

📱 SensorLab - All-in-One Sensor Toolkit

A comprehensive Flutter application that provides access to all device sensors with an intuitive, multi-language interface

🚀 Features • 📋 Requirements • ⚙️ Setup • 🏗️ Architecture • 📚 Modules • 🤝 Contributing

🚀 Features

🌐 Multi-Language Support

4 Languages: English, Spanish, Japanese, Khmer

500+ Localized Strings: Complete internationalization

Dynamic Language Switching: Change language on-the-fly

📊 Comprehensive Sensor Suite

Motion Sensors: Accelerometer, Gyroscope, Magnetometer

Environmental: Light, Humidity, Noise, Proximity

Location & Navigation: GPS, Compass

Health & Fitness: Heart Rate, Activity Tracking, Calorie Counter

Utility: QR/Barcode Scanner, Flashlight

🎨 Modern UI/UX

Material Design 3: Latest design system

Dark/Light Themes: System-adaptive theming

Responsive Layout: Optimized for all screen sizes

Accessibility: Full screen reader support

📋 Requirements

System Requirements

Flutter SDK: >=3.0.0

Dart SDK: >=3.0.0

Android Studio: Latest version (for Android development)

Xcode: Latest version (for iOS development, macOS only)

Platform Support

Platform Minimum Version Recommended Android API Level 21 (5.0) API Level 33+ iOS iOS 11.0 iOS 15.0+ Web Modern browsers Chrome 90+

Hardware Requirements

RAM: 8GB minimum, 16GB recommended

Storage: 10GB free space

Processor: Intel i5 / AMD Ryzen 5 or better

⚙️ Setup & Installation

1. Prerequisites Setup

Install Flutter SDK

# Download Flutter SDK from https://flutter.dev/docs/get-started/install
# Add Flutter to your PATH
export PATH="$PATH:`pwd`/flutter/bin"

# Verify installation
flutter doctor

Install Android Studio

# Download from https://developer.android.com/studio
# Install Android SDK and Android SDK Command-line Tools
# Setup Android emulator or connect physical device

Configure Development Environment

# Accept Android licenses
flutter doctor --android-licenses

# Install required dependencies
flutter pub global activate flutterfire_cli

2. Project Setup

Clone Repository

git clone https://github.com/Darahat/All-in-One-Sensor-Toolkit.git
cd All-in-One-Sensor-Toolkit

Install Dependencies

# Install Flutter dependencies
flutter pub get

# Generate platform-specific files
flutter packages pub run build_runner build

Configure Gradle (Android)

Ensure your android/build.gradle has:

buildscript {
    ext.kotlin_version = '1.8.22'
    dependencies {
        classpath 'org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version'
        classpath 'com.android.tools.build:gradle:8.1.0'
    }
}

Generate Localization Files

# Generate localization classes
flutter gen-l10n

3. Running the Application

Development Mode

# Run on connected device/emulator
flutter run

# Run with specific flavor
flutter run --flavor development

# Run with hot reload enabled (default)
flutter run --hot

Build for Production

# Build Android APK
flutter build apk --release

# Build Android App Bundle (recommended)
flutter build appbundle --release

# Build iOS (requires macOS)
flutter build ios --release

# Build for Web
flutter build web --release

4. Environment Configuration

🔐 Android Signing Setup

For building release APKs, you need to configure Android app signing:

# Copy the template file
cp android/key.properties.example android/key.properties

# Generate a keystore (replace with your details)
keytool -genkey -v -keystore android/release-key.jks -keyalg RSA -keysize 2048 -validity 10000 -alias upload

# Edit android/key.properties with your actual values

⚠️ Security Note: Never commit key.properties or keystore files to version control!

For detailed setup instructions, see: Android Setup Guide

🔑 Environment Variables Setup

For optional features (AdMob, API keys), configure environment variables:

# Copy the template file
cp .env.example .env

# Edit .env with your actual values (optional)

⚠️ Security Note: Never commit .env files to version control!

Configuration Overview

The app uses a two-file configuration system:

android/key.properties - Android signing and AdMob App ID

.env - AdMob ad unit IDs and API keys (optional)

Both files are excluded from version control for security.

🏗️ Architecture

Clean Architecture Pattern

📁 lib/
├── 📁 src/
│   ├── 📁 core/                    # Core functionality
│   │   ├── 📁 constants/           # App constants
│   │   ├── 📁 errors/              # Error handling
│   │   ├── 📁 services/            # Core services
│   │   └── 📁 utils/               # Utility functions
│   │
│   └── 📁 features/                # Feature modules
│       ├── 📁 health/              # Health & fitness tracking
│       │   ├── 📁 domain/          # Business logic
│       │   │   ├── 📁 entities/    # Core entities
│       │   │   ├── 📁 repositories/ # Repository interfaces
│       │   │   └── 📁 usecases/    # Business use cases
│       │   ├── 📁 infrastructure/  # External data sources
│       │   ├── 📁 application/     # Application services
│       │   └── 📁 presentation/    # UI components
│       │       ├── 📁 screens/     # Screen widgets
│       │       ├── 📁 widgets/     # Reusable widgets
│       │       └── 📁 providers/   # State management
│       │
│       ├── 📁 accelerometer/       # Motion sensor
│       ├── 📁 gyroscope/          # Rotation sensor
│       ├── 📁 compass/            # Navigation
│       ├── 📁 geolocator/         # GPS tracking
│       ├── 📁 light_meter/        # Ambient light
│       ├── 📁 noise_meter/        # Sound level
│       ├── 📁 humidity/           # Humidity sensor
│       ├── 📁 proximity/          # Proximity detection
│       ├── 📁 heart_beat/         # Heart rate monitor
│       ├── 📁 qr_scanner/         # QR/Barcode scanner
│       ├── 📁 flashlight/         # Device flashlight
│       └── 📁 app_settings/       # Application settings
│
├── 📁 l10n/                       # Localization files
│   ├── 📄 app_en.arb             # English translations
│   ├── 📄 app_es.arb             # Spanish translations
│   ├── 📄 app_ja.arb             # Japanese translations
│   └── 📄 app_km.arb             # Khmer translations
│
└── 📄 main.dart                   # Application entry point

📚 Modules Documentation

Core Modules

Module Description Documentation 🏥 Health Activity tracking, calorie counter, health metrics 📖 Health Module 📊 Accelerometer 3-axis acceleration measurement 📖 Accelerometer Module 🌀 Gyroscope Device rotation and angular velocity 📖 Gyroscope Module 🧭 Compass Magnetic field and navigation 📖 Compass Module 📍 Geolocator GPS positioning and location services 📖 Geolocator Module 💡 Light Meter Ambient light measurement 📖 Light Meter Module 🔊 Noise Meter Sound level monitoring 📖 Noise Meter Docs 💧 Humidity Environmental humidity sensing 📖 Humidity Module 📏 Proximity Distance detection sensor 📖 Proximity Module ❤️ Heart Beat Heart rate monitoring via camera 📖 Heart Beat Module 📱 QR Scanner QR code and barcode scanning 📖 QR Scanner Module 🔦 Flashlight Device flashlight control 📖 Flashlight Module ⚙️ App Settings Application configuration 📖 Settings Module

🔧 Integration & Usage

For Developers

Want to use SensorLab features in your own app? We've got you covered!

Guide Description Best For 🚀 Quick Start Template Ready-to-use health app template Beginners, rapid prototyping 📖 Integration Guide Complete feature integration guide Custom implementations 📚 Module Documentation Individual module guides Specific feature integration

Popular Use Cases

Health & Fitness Apps - Activity tracking, user profiles, settings

IoT Sensor Dashboards - Real-time sensor data visualization

Educational Projects - Learning Flutter, sensors, localization

Prototype Development - Quick sensor integration testing

🤝 Contributing

Development Setup

Fork the repository

Create a feature branch: git checkout -b feature/amazing-feature

Commit changes: git commit -m 'Add amazing feature'

Push to branch: git push origin feature/amazing-feature

Open a Pull Request

Coding Standards

Follow Dart Style Guide

Use Flutter Linting

Write tests for new features

Update documentation

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

Made with ❤️ using Flutter Made with ❤️ by darahat ⭐ Star this repository if you find it helpful! ⭐

flutter dart mobile sensors accelerometer gyroscope compass gps health tracker qr scanner internationalization cross platform android ios real time data clean architecture material design riverpod sensor toolkit measurement app

Like this project

Completed work

Posted Dec 3, 2025

Developed SensorLab, a multi-language app for sensor access using Flutter.

Likes

Views

Timeline

Apr 4, 2025 - Oct 15, 2025

Development of SensorLab Application

Didarul Alam Rahat

Completed work

Mobile Engineer

Dart

Flutter

GitHub

Mobile

📱 SensorLab - All-in-One Sensor Toolkit

A comprehensive Flutter application that provides access to all device sensors with an intuitive, multi-language interface

🚀 Features • 📋 Requirements • ⚙️ Setup • 🏗️ Architecture • 📚 Modules • 🤝 Contributing

🚀 Features

🌐 Multi-Language Support

4 Languages: English, Spanish, Japanese, Khmer

500+ Localized Strings: Complete internationalization

Dynamic Language Switching: Change language on-the-fly

📊 Comprehensive Sensor Suite

Motion Sensors: Accelerometer, Gyroscope, Magnetometer

Environmental: Light, Humidity, Noise, Proximity

Location & Navigation: GPS, Compass

Health & Fitness: Heart Rate, Activity Tracking, Calorie Counter

Utility: QR/Barcode Scanner, Flashlight

🎨 Modern UI/UX

Material Design 3: Latest design system

Dark/Light Themes: System-adaptive theming

Responsive Layout: Optimized for all screen sizes

Accessibility: Full screen reader support

📋 Requirements

System Requirements

Flutter SDK: >=3.0.0

Dart SDK: >=3.0.0

Android Studio: Latest version (for Android development)

Xcode: Latest version (for iOS development, macOS only)

Platform Support

Platform Minimum Version Recommended Android API Level 21 (5.0) API Level 33+ iOS iOS 11.0 iOS 15.0+ Web Modern browsers Chrome 90+

Hardware Requirements

RAM: 8GB minimum, 16GB recommended

Storage: 10GB free space

Processor: Intel i5 / AMD Ryzen 5 or better

⚙️ Setup & Installation

1. Prerequisites Setup

Install Flutter SDK

# Download Flutter SDK from https://flutter.dev/docs/get-started/install
# Add Flutter to your PATH
export PATH="$PATH:`pwd`/flutter/bin"

# Verify installation
flutter doctor

Install Android Studio

# Download from https://developer.android.com/studio
# Install Android SDK and Android SDK Command-line Tools
# Setup Android emulator or connect physical device

Configure Development Environment

# Accept Android licenses
flutter doctor --android-licenses

# Install required dependencies
flutter pub global activate flutterfire_cli

2. Project Setup

Clone Repository

git clone https://github.com/Darahat/All-in-One-Sensor-Toolkit.git
cd All-in-One-Sensor-Toolkit

Install Dependencies

# Install Flutter dependencies
flutter pub get

# Generate platform-specific files
flutter packages pub run build_runner build

Configure Gradle (Android)

Ensure your android/build.gradle has:

buildscript {
    ext.kotlin_version = '1.8.22'
    dependencies {
        classpath 'org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version'
        classpath 'com.android.tools.build:gradle:8.1.0'
    }
}

Generate Localization Files

# Generate localization classes
flutter gen-l10n

3. Running the Application

Development Mode

# Run on connected device/emulator
flutter run

# Run with specific flavor
flutter run --flavor development

# Run with hot reload enabled (default)
flutter run --hot

Build for Production

# Build Android APK
flutter build apk --release

# Build Android App Bundle (recommended)
flutter build appbundle --release

# Build iOS (requires macOS)
flutter build ios --release

# Build for Web
flutter build web --release

4. Environment Configuration

🔐 Android Signing Setup

For building release APKs, you need to configure Android app signing:

# Copy the template file
cp android/key.properties.example android/key.properties

# Generate a keystore (replace with your details)
keytool -genkey -v -keystore android/release-key.jks -keyalg RSA -keysize 2048 -validity 10000 -alias upload

# Edit android/key.properties with your actual values

⚠️ Security Note: Never commit key.properties or keystore files to version control!

For detailed setup instructions, see: Android Setup Guide

🔑 Environment Variables Setup

For optional features (AdMob, API keys), configure environment variables:

# Copy the template file
cp .env.example .env

# Edit .env with your actual values (optional)

⚠️ Security Note: Never commit .env files to version control!

Configuration Overview

The app uses a two-file configuration system:

android/key.properties - Android signing and AdMob App ID

.env - AdMob ad unit IDs and API keys (optional)

Both files are excluded from version control for security.

🏗️ Architecture

Clean Architecture Pattern

📁 lib/
├── 📁 src/
│   ├── 📁 core/                    # Core functionality
│   │   ├── 📁 constants/           # App constants
│   │   ├── 📁 errors/              # Error handling
│   │   ├── 📁 services/            # Core services
│   │   └── 📁 utils/               # Utility functions
│   │
│   └── 📁 features/                # Feature modules
│       ├── 📁 health/              # Health & fitness tracking
│       │   ├── 📁 domain/          # Business logic
│       │   │   ├── 📁 entities/    # Core entities
│       │   │   ├── 📁 repositories/ # Repository interfaces
│       │   │   └── 📁 usecases/    # Business use cases
│       │   ├── 📁 infrastructure/  # External data sources
│       │   ├── 📁 application/     # Application services
│       │   └── 📁 presentation/    # UI components
│       │       ├── 📁 screens/     # Screen widgets
│       │       ├── 📁 widgets/     # Reusable widgets
│       │       └── 📁 providers/   # State management
│       │
│       ├── 📁 accelerometer/       # Motion sensor
│       ├── 📁 gyroscope/          # Rotation sensor
│       ├── 📁 compass/            # Navigation
│       ├── 📁 geolocator/         # GPS tracking
│       ├── 📁 light_meter/        # Ambient light
│       ├── 📁 noise_meter/        # Sound level
│       ├── 📁 humidity/           # Humidity sensor
│       ├── 📁 proximity/          # Proximity detection
│       ├── 📁 heart_beat/         # Heart rate monitor
│       ├── 📁 qr_scanner/         # QR/Barcode scanner
│       ├── 📁 flashlight/         # Device flashlight
│       └── 📁 app_settings/       # Application settings
│
├── 📁 l10n/                       # Localization files
│   ├── 📄 app_en.arb             # English translations
│   ├── 📄 app_es.arb             # Spanish translations
│   ├── 📄 app_ja.arb             # Japanese translations
│   └── 📄 app_km.arb             # Khmer translations
│
└── 📄 main.dart                   # Application entry point

📚 Modules Documentation

Core Modules

🔧 Integration & Usage

For Developers

Want to use SensorLab features in your own app? We've got you covered!

Popular Use Cases

Health & Fitness Apps - Activity tracking, user profiles, settings

IoT Sensor Dashboards - Real-time sensor data visualization

Educational Projects - Learning Flutter, sensors, localization

Prototype Development - Quick sensor integration testing

🤝 Contributing

Development Setup

Fork the repository

Create a feature branch: git checkout -b feature/amazing-feature

Commit changes: git commit -m 'Add amazing feature'

Push to branch: git push origin feature/amazing-feature

Open a Pull Request

Coding Standards

Follow Dart Style Guide

Use Flutter Linting

Write tests for new features

Update documentation

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

Made with ❤️ using Flutter Made with ❤️ by darahat ⭐ Star this repository if you find it helpful! ⭐

Like this project

Completed work

Posted Dec 3, 2025

Developed SensorLab, a multi-language app for sensor access using Flutter.

Likes

Views

Timeline

Apr 4, 2025 - Oct 15, 2025