Your Reference in
Embedded Linux & Systems
From bare-metal C on ARM Cortex-M4 to Linux kernel drivers — structured tutorials, real hardware, zero cost.
100% Free Forever
No subscriptions, no paywalls, no ads that block content. Every tutorial, chapter, and code example is freely accessible to everyone.
Real Hardware Focus
Every concept is backed by working code on real boards — TM4C123, STM32F4 Discovery, and more. Theory and practice, always together.
Structured Learning Tracks
Carefully sequenced chapters that build on each other — from environment setup through advanced peripherals. No random YouTube rabbit holes.
Tutorial Tracks
Choose your path — each track is a complete, structured course
Embedded Linux
Go deep into Linux on embedded hardware. Learn the kernel, write device drivers, and build full distributions with Yocto and Buildroot.
- Linux Kernel Architecture
- Device Driver Development
- Yocto & Buildroot
- Embedded Linux Security
Modern C++
Modern CPP Concepts
- Classes
- Templates
- STL
- Modern Cpp Conecpts
Zephyr RTOS
The Linux Foundation's open-source RTOS built for connected, resource-constrained devices. Bluetooth, WiFi, and beyond.
- Zephyr SDK & DevTools
- Threads & Scheduling
- GPIO, UART, SPI, I2C
- Networking Stack
Tiva C Series
ARM Cortex-M4 bare-metal programming from scratch. Every peripheral explained with full code examples.
- GPIO & Interrupts
- Timers & PWM
- ADC & UART
- I2C & SPI
STM32
STM32F4 Discovery board deep dive. HAL, CubeMX, bare-metal — all peripherals from GPIO to USB and Ethernet.
- HAL & CubeMX
- Timers, PWM & DMA
- ADC, DAC & CAN
- USB & Ethernet
FreeRTOS
Master real-time operating systems on embedded hardware. Tasks, IPC, memory management, and porting across MCUs.
- Task Management
- Queues & Semaphores
- Mutexes & Event Groups
- Memory Management
ESP32 IDF
Wi-Fi & Bluetooth IoT development with Espressif's ESP-IDF framework. From GPIO to OTA updates and cloud connectivity.
- Wi-Fi & MQTT
- Bluetooth Classic & BLE
- FreeRTOS on ESP32
- OTA & Secure Boot
TinyML
Deploy machine learning models on microcontrollers. TensorFlow Lite Micro, Edge Impulse, and on-device inference on Cortex-M and ESP32.
- TFLite Micro & Edge Impulse
- Model Quantization
- Keyword Spotting
- Gesture & Image Recognition
Advanced Topics
Low-level internals every embedded engineer should know — bootloaders, startup code, linker scripts, and debugging.
- Bootloader Design
- Startup Code & Linker Scripts
- Memory Models
- Debugging Techniques
Suggested Learning Path
Start here if you're new to embedded systems
Tiva C Series
Start with bare-metal ARM Cortex-M4. Learn GPIO, timers, UART, and all core peripherals from scratch using TivaWare SDK.
Begin →FreeRTOS
Add real-time scheduling to your firmware. Tasks, queues, semaphores, and interrupt-safe IPC patterns.
Begin →STM32 Discovery
Level up to STM32F4 with HAL/CubeMX. Advanced peripherals — DMA, USB, Ethernet, crypto, and LCD-TFT.
Begin →Embedded Linux
Graduate to Linux on hardware. Kernel drivers, Yocto, Buildroot, and full embedded Linux distributions.
Begin →Latest Articles
Deep dives, tips, and insights from the embedded world
The Complete Embedded Linux Roadmap: From Zero to Production
Embedded Linux is one of the most in-demand skills in the industry — and one of the hardest to learn without a clear map. Unlike bare-metal programming, there is no single textbook that covers the full stack. You need to piece together knowledge from kernel docs, board support packages, build system manuals, and years of real project experience.
Read MoreReady to start building?
Pick a track, follow the chapters, and build real firmware on real hardware — free, forever.