Oximeter Monitor with ESP32 and MAX30100

Project made for my Microcontrollers class, the goal of this project is to collect the heartrate and oxygen saturation data using the ESP32 microcontroller and the MAX30100 sensor. The whole project is divided into 3 parts/repositories: the microcontroller firmware (this repository), the REST Api for the data management and the Telegram bot for real time data visualization.

In this repository you will find the code for the ESP32 firmware that will be responsible for collecting the data from the sensor and sending it to the database through the REST Api, this firmware also implements a WebServer for real time visualization of the data being collected, the user needs to be connected to the same network as the ESP32 to access the web page, this page can be accessed via the http://oximetro.local URL.

Bellow you can see the circuit diagram:

Visualization of the collected data with the web page hosted in the ESP32:

How to build the project

Dependencies:

oxullo/MAX30100lib 1.2.1
kontakt/MAX30100 1.0
bblanchon/ArduinoJson 6.19.4
me-no-dev/ESP Async WebServer 1.2.3
mcxiaoke/ESPDateTime 1.0.4

Clone the project:

$ git clone https://github.com/LaBatata101/oximeter-esp32-firmware

You can build the project and flash it to the ESP32 using the VSCode extension PlatformIO.

Or using the IDF Frontend.

Or using the Arduino IDE.