IOT & NUTRITION TECH
Smart NFC-Based Social Nutrition Network: From IoT Sensors to User Profiles
This project explores the development of an innovative social network platform centered around nutrition, leveraging IoT devices and physical NFC authentication.
At its core, the system allows users to receive real-time nutritional information about food products purchased in stores and automatically records each product on their personal social profile, which is securely accessed through a physical NFC key.
The integration of Arduino, NFC sensors, Raspberry Pi, and relational database management enables a seamless, interactive experience that bridges physical and digital nutrition tracking, while fostering social interaction around healthy eating habits.

Project Architecture & Communication
The technical infrastructure was designed for robust, multi-layered communication:
- An Arduino device equipped with an NFC sensor was programmed to read user NFC keys and food product tags at the point of sale.
- The Arduino communicated via Ethernet with a Raspberry Pi, which acted as a local hub for data aggregation and processing.
- The Raspberry Pi then transmitted data wirelessly to a central PC server, ensuring fast and reliable synchronization across the system.
User Interaction & Social Features
The platform was envisioned as a nutrition-focused social network:
- Users accessed their personal profiles through NFC-enabled keys, which provided secure and immediate authentication.
- Each food product scanned in-store was automatically registered on the user's profile, along with detailed nutritional information.
- The social component allowed users to share their food choices, view friends’ nutritional activity, and interact within the community.
Database Management & Relational Logic
Efficient data management was central to the project:
- A relational database was implemented to handle user profiles, product information, purchase history, and social relationships.
- The system ensured real-time updates of user data and enabled complex queries for social recommendations and analytics.
- Database design supported scalability for future integration with additional stores, users, and food product types.
Impact & Potential Applications
The prototype demonstrates how IoT and social networking can enhance consumer awareness and engagement:
- Enables instant access to nutritional data at the point of purchase, encouraging informed food choices.
- Automates personal nutrition tracking, reducing manual effort and errors.
- Lays the groundwork for future smart retail solutions, loyalty programs, or health-focused social campaigns using physical-digital interaction.