Health Monitoring Prototype

We developed a health monitoring prototype for our client that integrates various market-available sensors to measure vital health parameters. The system is designed to be portable, user-friendly, and efficient, suitable for both personal and professional use. Below are the detailed specifications and functionalities of the prototype.

Key Features:

  1. Vital Sign Measurement:
    • Pulse Rate and SpO2 Monitoring:
      • Sensor: MAX30100
      • Function: This sensor measures the pulse rate and blood oxygen levels (SpO2). The MAX30100 is an integrated pulse oximetry and heart-rate monitor sensor solution that combines two LEDs, a photodetector, optimized optics, and low-noise analog signal processing to detect pulse rate and oxygen saturation.
    • Ambient Temperature and Humidity Monitoring:
      • Sensor: DHT11
      • Function: The DHT11 sensor measures the ambient temperature and humidity. It provides accurate and reliable measurements, making it ideal for monitoring environmental conditions around the user.
    • Body Temperature Monitoring:
      • Sensor: LM35
      • Function: The LM35 sensor measures body temperature with high accuracy. This analog temperature sensor outputs a voltage that is linearly proportional to the Celsius temperature.
  2. Microcontroller and Connectivity:
    • Microcontroller: ESP32
      • Function: The ESP32 microcontroller is the heart of the prototype, responsible for reading data from all sensors and managing the communication and display of the data. It features built-in Wi-Fi and Bluetooth, enabling wireless data transmission.
    • Connectivity: Self Wi-Fi Mode
      • Function: The ESP32 is configured to operate in self Wi-Fi mode, creating its own network. This allows users to connect to the device directly via a static IP address and view real-time data on a webpage.
  3. Web Interface:
    • Technology: HTML, CSS, JavaScript (via Arduino IDE)
      • Function: A user-friendly web interface is developed using HTML, CSS, and JavaScript. The webpage displays the real-time readings of pulse rate, SpO2, ambient temperature, humidity, and body temperature. Users can access this page by connecting to the device’s Wi-Fi network and navigating to the static IP address.
  4. Enclosure Design:
    • Material: 3D Printed Case
      • Design: The enclosure is designed to be compact and ergonomic, allowing it to be mounted on the arm for continuous monitoring. The 3D printed case is customized to house the ESP32 and all sensors securely, ensuring protection and durability.

Implementation Details:

  1. Sensor Integration:
    • The MAX30100 sensor is connected to the ESP32 via I2C communication, ensuring efficient data transfer.
    • The DHT11 sensor is connected to a digital pin on the ESP32, providing temperature and humidity data.
    • The LM35 sensor is connected to an analog pin, with the ESP32 reading the voltage output to determine the temperature.
  2. Webpage Development:
    • The web interface is developed using Arduino IDE, with the ESP32 serving the webpage over its Wi-Fi network.
    • The webpage is designed to be responsive, displaying data in real-time with clear and easy-to-read graphics and text.
  3. 3D Printed Case:
    • The case is designed using CAD software and printed using durable, lightweight material.
    • It features openings for sensor exposure and a secure mounting system for comfortable arm wear.


  • Real-Time Monitoring: Users can view their health data in real-time through the web interface.
  • Portable and Wearable: The compact design allows for easy transportation and comfortable use.
  • User-Friendly Interface: The web page is intuitive, making it accessible to users with minimal technical knowledge.
  • Customizable: The prototype can be further developed to include additional sensors or features as required by the client.

At Projexels, we’re committed to delivering innovative solutions tailored to our clients’ needs. Our expertise in developing prototypes and products for health monitoring demonstrates our dedication to providing cutting-edge technology solutions. We’re always ready to undertake projects like this, ensuring the highest quality and satisfaction for our clients.

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Project Info

  • Category: Product Design -
  • Location: Karachi
  • Completed Date: 2024