This project is a health and environmental monitoring system designed to measure, display, and transmit vital body parameters along with environmental conditions. Using sensors such as MAX30100 for heart rate and oxygen saturation (SpO₂), DHT11 for temperature and humidity, and an NRF module for wireless communication, the system provides real-time monitoring. The collected data is displayed on an LCD screen, including temperature, humidity, heart rate, oxygen level, latitude, and longitude, ensuring both environmental and personal health insights are available at a glance.
This project is particularly useful for remote patient monitoring, environmental sensing, and smart healthcare applications.

Components Used

• Arduino Uno – Microcontroller to process and control the system

• MAX30100 Sensor – Measures heart rate and SpO₂ (oxygen saturation)

• DHT11 Sensor – Measures ambient temperature and humidity

• GPS Module (NEO-6M or similar) – Provides latitude and longitude

• NRF24L01 Module – Wireless communication for IoT connectivity

• LCD Display with I²C Module – Displays all data in real time

Working Principle

Sensing Stage

• MAX30100 detects heart rate and SpO₂.
• DHT11 measures temperature and humidity.
• GPS Module provides latitude and longitude.

Processing Stage

• The Arduino collects data from all sensors.
• The data is processed into human-readable form (e.g., °C, %, BPM, SpO₂, coordinates).

Display Stage

• The LCD with I²C module shows all readings together in real time.

Transmission Stage

• The NRF24L01 transmits the sensor data wirelessly to another Arduino/PC/IoT platform.
• Enables remote monitoring and analysis.

Applications

• Remote patient health monitoring

• Smart hospitals and healthcare systems

• Environmental monitoring stations

• Disaster-prone area surveillance

Project Video

Features

Health Monitoring:

• Heart rate detection
• Oxygen level (SpO₂) monitoring.

Environment Monitoring:

• Real-time temperature and humidity measurement

Geolocation Tracking:

• Latitude and longitude display

User Interface:

• LCD screen shows all parameters clearly

IoT Connectivity:

• NRF24L01 transmits data wirelessly for remote access
• Portable & Low Power:
• Compact design suitable for continuous use

Package Include

• 1 X Soldier Health and Location Tracking using Arduino and NRF24L01