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  Overview

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Oxygen saturation might be one parameter for judging, if severe measures (e.g. artificial breathing) have to be taken against ones covid19 illness. Measuring Oxygen Level, Heartbeat and Temperature is one main function of this prototype. Such devices and system are commercial available but expensive.

The problem

Monitoring Equipment is expensive, not easily to build and perhaps not even available. This project shows, that it does not have to be.

This solution

• Use sensor together with a cheap microcontroller (ESP32) connected to wifi
• Power it up with a battery
• Write code that gathers data and send it via MQTT to a central station
• Visualize it with node-red
  ⇒ So the solution is cheap, scalable and mobile

Impact

With the availablitity of such a device, a hospital can monitor several patients. By using a cloud solution, a doctor monitor his patients from a distance. Finally, more targeted measures can be taken. Even such a solution can monitor the success of a treatment through a ventilation machine.

Built With

• arduino
• esp32
• mqtt
• node-red
• pulseoxy-sensor