Qt for embedded HMI — signal-slot patterns and threading
Building an embedded HMI with Qt. Signal-slot architecture, background worker threads, keeping the UI responsive, and safe cross-thread communication.
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Embedded
State machines for firmware — from enum/switch to state objects
Evolving a firmware state machine from a basic enum+switch to a table-driven design and finally a state-object pattern. Practical STM32 examples throughout.
HAL vs bare-metal register access on STM32
When STM32 HAL is the right call, when register access beats it, and how to mix both in a layered firmware architecture without creating a mess.
FreeRTOS task and queue design
Structuring FreeRTOS tasks around queues rather than shared variables. Task sizing, priority assignment, and patterns that avoid deadlocks and starvation.
ADC + DMA on STM32 — interrupt-driven pipeline architecture
How to wire ADC continuous conversion to DMA on STM32, handle half/full-transfer callbacks correctly, and build a clean pipeline architecture around it.