--- title: "Important Programming Concepts (Even on Embedded Systems) Part V: State Machines" url: https://daily.dev/posts/important-programming-concepts-even-on-embedded-systems-part-v-state-machines-ilszkakhq source_url: https://www.embeddedrelated.com/showarticle/723.php type: article source: "EmbeddedRelated" published: 2026-05-31T07:48:42.618Z updated: 2026-05-31T09:32:06.560Z tags: ["c", "embedded"] reading_time: 46 upvotes: 0 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Important Programming Concepts (Even on Embedded Systems) Part V: State Machines **[EmbeddedRelated](https://daily.dev/sources/embeddedrelated)** · 46 min read · 0 upvotes · 0 comments ## Summary A deep dive into finite state machines (FSMs) and Harel statecharts for embedded systems programming. Using a motorized couch as a running example, the author demonstrates how FSMs expose corner cases, clarify timing constraints, and produce unambiguous system specifications. The piece covers the limitations of sequential imperative code for concurrent hardware control, the formal definition of FSMs, the evolution to hierarchical statecharts, and a survey of implementation approaches including hand-coded switch statements, tabular implementations, the State pattern, Boost libraries, the QP framework, and model-based code generation tools like SinelaboreRT and Stateflow. Historical context from David Harel's avionics work and the Philips CDR870 project illustrates why formal behavioral specification matters in complex systems. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#c](https://daily.dev/tags/c), [#embedded](https://daily.dev/tags/embedded) [View this post on daily.dev](https://daily.dev/posts/important-programming-concepts-even-on-embedded-systems-part-v-state-machines-ilszkakhq)