Final Year Major Project — Disaster Early-Warning System

Traditional weather forecasting misses hyperlocal cloudburst triggers. This system deploys ESP32 sensor nodes in the field to monitor soil moisture, rainfall intensity, temperature, and humidity — transmitting over two independent channels simultaneously:

• LoRa 433MHz → local RX node for offline field alerts (LCD · buzzer · GSM SMS) — works without internet
• WiFi/UDP → Flask server running a Random Forest classifier → MySQL logging → live auto-refreshing dashboard

The dual-channel design ensures the system keeps alerting locally even when the network is down — critical for disaster-prone, connectivity-poor regions.

ESP32 LoRa SX1278 C++ Python Flask Random Forest MySQL Blynk GSM scikit-learn

Third Year Mini Project — Smart Pillow with ML-based Sleep Analysis

Engineered a sensor-embedded smart pillow using ESP32 to continuously monitor pulse, respiration, body temperature, pressure, and sleep posture. Sensor data streams in real time to a Node.js REST API, persisted in MongoDB, and classified by a Random Forest model to predict insomnia risk.

ESP32 C++ Node.js MongoDB Python Random Forest REST API

Full-Stack Restaurant Management System

Architected and deployed a production-grade restaurant platform featuring real-time order state management, reservation flows, menu filtering, JWT-secured role-based access, and Winston structured logging.

Resolved 40+ production-level bugs across the full stack — including in-memory auth caching to eliminate per-request DB queries, RxJS catchError fix to prevent polling stream termination, and ChangeDetectorRef.detectChanges() injected across 10+ components to fix Angular rendering failures.

Angular 21 Node.js Express MySQL Sequelize JWT RxJS TypeScript

Enterprise-Grade HR Platform

Built a layered Java backend (controller → service → repository) exposing a JWT-secured REST API, consumed by a React frontend. Implements department hierarchies, employee CRUD, and role-based access control — mirroring patterns used in production enterprise HR systems.

Demonstrates core Spring Boot competencies directly applicable to backend engineering roles: bean lifecycle, JPA/Hibernate ORM, DTO mapping, exception handling, and stateless JWT auth.

Spring Boot Java React MySQL JPA/Hibernate JWT REST API

Real-Time Computer Vision Safety System

Implemented a real-time eye-aspect-ratio (EAR) algorithm on a live webcam feed using OpenCV to detect sustained eye closure. On drowsiness detection, the system triggers an audio alarm via Pygame and dispatches an email alert with the driver's GPS coordinates using smtplib and GeoPy — sub-second end-to-end response.

Python OpenCV smtplib Pygame GeoPy

Deployed Full-Stack Web Application

Built and shipped a full MERN stack to-do application with deadline tracking, overdue detection, and persistent task state. Frontend deployed on Netlify, backend on Render — live and publicly accessible.

Demonstrates end-to-end ownership: React SPA, Express REST API, MongoDB data layer, CORS configuration, environment-based config, and cloud deployment.

React Node.js Express MongoDB Netlify Render