Hussein

Suleiman

ColdChain Shield is a Flutter-based smart cold-chain and fleet management platform for real-time refrigerated transport monitoring. The system uses a single Flutter codebase with role-based experiences for drivers and enterprise managers. The driver application supports trip management, GPS tracking, live location and speed monitoring, temperature monitoring through a Minew S1 BLE sensor, connectivity status, offline data caching, and automatic synchronization. The platform integrates Firebase Authentication and Cloud Firestore for secure authentication and real-time cloud data. Provider/ChangeNotifier is used for state management, while Geolocator handles GPS tracking. The temperature layer uses a service abstraction to process BLE sensor advertisements, validate data, identify devices, prevent duplicate packets, and provide temperature updates. The project follows a feature-oriented architecture focused on maintainable, scalable, and reliable real-time systems.

Smart Food Savior is a Flutter-based food rescue platform that connects food merchants with customers and beneficiaries to reduce food waste and make surplus food more accessible. The platform includes separate experiences for merchants and customers, with real-time updates powered by Firebase Cloud Firestore and StreamBuilder. Merchants can manage available food items, while users can discover nearby offers based on their location. The application integrates Geolocator for live GPS location and distance-based filtering, helping users find relevant food offers nearby. Firebase Cloud Messaging (FCM) is used for real-time notifications, while Dio and ImgBB are used for image upload and management. The project focuses on real-time data, location-aware features, efficient user experiences, and reliable communication between platform participants. Key technologies include Flutter, Dart, Firebase, Cloud Firestore, Geolocator, FCM, Dio, ImgBB, and real-time Streams.