Set Yourself up for Success — Lessons Learned from Building 100+ Devices with C++/Qt/QML
summary
Company has built 100+ Qt/QML devices and standardizes on a layered architecture: QML top, C++ middle, plugin back ends. Example: a Raspberry Pi 4 ventilator (BOM ≈ $500) goes from wireframe to pixel‑perfect UI to a WebAssembly UI simulator in ~8 weeks, exposing changes from clinicians. Key tools and patterns: Google Protocol Buffers for messages, a C++ data connector binding serial I/O to Qt properties, state machines for app logic, a device simulator for full integration testing. Surge staffing and reuse reduce risk.
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chapters (8)
- 0:00Introduction to ics
- 1:37Why embedded projects fail
- 2:59Modern HMI challenges
- 6:32Project principles and design
- 12:32Ventilator case study
- 17:19UI simulation and feedback
- 20:53Technical implementation
- 24:05Conclusion and Q&A
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