IoT Health Monitoring System with Arduino, ESP8266 & React WebSocket Dashboard

In this project, we build an IoT-based Health Monitoring System using an Arduino UNO, LM35 temperature sensor, and a Pulse Sensor to monitor vital signs like body temperature and heart rate. The data is transmitted via ESP8266 over WebSocket to a React-based web dashboard for real-time monitoring.

Perfect for students, hobbyists, and developers looking to combine hardware (IoT) with a modern frontend.

🧠 Key Features:

Real-time heart rate & temperature monitoring

Wireless data transmission using ESP8266

WebSocket communication to React frontend

Minimal hardware, easy to replicate

🛠 Components Used:

Arduino UNO

LM35 Analog Temperature Sensor

Pulse Sensor

ESP8266 WiFi Module

Breadboard & Jumper Wires

Custom WebSocket Dashboard (React.js)

🌐 Full-stack IoT meets real-world healthcare monitoring!


🧠 System Architecture

1. *Arduino* reads data from LM35 and Pulse Sensor.
2. Data sent via *Serial* to ESP8266.
3. ESP8266 forwards data over **WebSocket**.
4. A *React frontend* receives and displays vitals in real-time.