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Mukul Yadav edited this page Sep 10, 2025 · 3 revisions

Embedded Systems from Source

Welcome to Embedded Systems from Source — a hands-on, diagram-rich, and concept-first guide to mastering embedded systems through real-world thinking and bare-metal coding.

Whether you're a student, an engineer returning to the basics, or a robotics enthusiast tired of YouTube rabbit holes — this course is for you.

What You'll Learn

  • How microcontrollers actually work — not just how to use libraries
  • Pointers, memory maps, and register-level control
  • GPIO, timers, interrupts, and serial protocols (USART, I2C, SPI)
  • The startup sequence and what happens before main()
  • How to debug embedded systems like an engineer, not a guesser
  • Toolchain pipeline: from code to binary to flash
  • How to read a datasheet without your eyes glazing over
  • (And eventually) how to write your own drivers

All content is structured in progressive modules with annotated code examples and original diagrams.

Course Structure

Module Topic
1 Thinking Like an Embedded Engineer (MCUs, memory, registers)
2 Talking to Hardware (GPIOs, registers, bitfields)
3 Debugging When It All Breaks
4 Memory Matters (RAM, Flash, stack, heap)
5 Writing Your Own Drivers
6 Project: Solve a Real Problem
7 Engineering Best Practices
8 Intro to PCB Design
9 Intro to Embedded OS Concepts

Assets and Diagrams

All custom diagrams and screenshots are stored in the assets/ folder and are used throughout the course with context.

  • /assets – conceptual illustrations (registers, memory maps, toolchain)

Getting Started

This is a read-first, code-later course. To follow along:

  1. Clone the repo or view it on GitHub.
  2. Open each module .md file in order.
  3. Optional: Use Obsidian for a local, interactive Markdown experience.

Bonus: Code samples are provided in /Module_1/CodeExamples and written for the STM32F103 (Blue Pill), and the STM32F407 Discovery Board.

Credits

  • Diagrams created using Excalidraw / draw.io / Figma.
  • Reference material pulled from STMicroelectronics' official datasheets.

Why This Exists

Too many embedded tutorials either:

  • Skip the "why" and go straight to "copy this code"
  • Assume you're already an EE grad with 10 years of experience

This course bridges the gap — combining clarity, practicality, and depth — for anyone who wants to understand embedded systems from the inside out.

Feedback

Got a bug, question, or insight? Open an issue or start a discussion — this course is meant to evolve with its learners.

Created and maintained by Open Horizon® under the GNU AGPLv3 licence. Visit the full repository at https://github.com/openhorizonrobotics/E-2-ES

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