As an experienced embedded systems engineer, I can not only improve the performance of your PyQt5 app but also effectively handle multiple interrupt flow sensor readings. My expertise in C/C++ programming coupled with a deep understanding of hardware and firmware development ensures that I can optimize your app for speed and memory usage, which is crucial for accurate dispensing of 20 liters.
Through my experience, I’ve learned to focus not just on UI, but on underlying performance-related improvements, which aligns perfectly with what you need. My knowledge in logic programming plus my educational background in computer science positions me well to handle the delay in API calls that you reported.
Furthermore, my skillset extends beyond the project's initial requirements: I'm tech-savvy in the automation industry and IoT solutions using Python and Arduino; competences that might not directly relate to this project but demonstrates how versatile and adaptable I am to unique project challenges. If you want a reliable, efficient and quality-oriented solution provider for your PyQt5 app optimization with meticulous handling for flow sensor readings, then let's connect!