Air Flow Sensor Desktop Dashboard
Description
Air flow sensor was developed for a medical equipment vendor, intended to replace a legacy air flow sensor that was used in their products — medical lung respirators. The new sensor was developed by my colleagues and needed a desktop application to configure, calibrate and test it before deployment inside the respirators.
Technical Details
I was responsible for designing and building the entire application using the Qt framework, which allowed me to develop a cross-platform app that could run on Windows, Linux and MacOS. The application was developed in C++ and QML and built using CMake. The design and prototype were done using Invision Studio, with constant feedback from the client.
The application communicates with the sensor via USB and allows users to configure the sensor parameters, calibrate it and test it using a real-time graph. It communicates with the sensor using a custom serial protocol defined by the client, and collects data points at a rate of 1 kHz (1000 samples per second).
It is also capable of generating datalogs after each test, which are saved in a CSV file that can be used for further analysis.
Results
The application was developed over the course of 6 months in 2021 and was successfully used to configure and test the sensor before deployment inside the respirators, as well as to perform tests during the development of the sensor.
