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embedded-systems

Splitting firmware into .h/.cpp modules with clear interfaces

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Local knowledge map

Local knowledge map

Building a timestamped data logger that survives missing… Hiding pins and parts behind an interface so a real sensor can be… Resolving configuration at compile time with… Using classes and RAII so a peripheral or bus transaction is always… Validating readings, returning error codes, and falling back to… Splitting firmware into .h/.cpp modules with clear interfaces Explaining how setup() and loop() run, and the main() the Arduin… Grouping data with structs and enums, and choosing fixed-width… Using zero-based arrays safely, and telling local, global… Organizing a firmware project (src, include, lib, test) and keepin… Writing and calling C++ functions with parameters and return… Declaring variables and constants of the basic C++ types Setting up a PlatformIO project in VS Code with pinned…

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Solid arrows are required prerequisites; dashed are recommended or helpful. Lower rows are more foundational. Click any box to jump to that concept.