Topic

RTOS

Zephyr from Zero on the ST Nucleo-F401RE: Watching the Scheduler Work Zephyr

Zephyr from Zero on the ST Nucleo-F401RE: Watching the Scheduler Work

A complete beginner's path onto the Zephyr RTOS using the low-cost ST Nucleo-F401RE, from installing the toolchain to a four-thread demo whose scheduling you can watch on a logic analyser.

Derek Molloy Derek Molloy · Aug 31, 2026 · 62 min read
Under the Hood of the Arduino UNO Q: Vanilla Zephyr on the Cortex-M33 Arduino

Under the Hood of the Arduino UNO Q: Vanilla Zephyr on the Cortex-M33

Part three of the UNO Q series removes the App Lab, Arduino core, sketch loader and just uses west, a devicetree, and our own Zephyr firmware on the board's STM32U585, driving the 13x8 LED matrix through Zephyr's display API with grayscale functionality.

Derek Molloy Derek Molloy · Jul 30, 2026 · 50 min read
The State of Rust for Embedded Development in Mid-2026 Rust

The State of Rust for Embedded Development in Mid-2026

A survey of where Rust stands for embedded and edge development in mid-2026, from bare-metal async on microcontrollers to services on embedded Linux, including the toolchain, the safety-certification story, the wireless gaps, and measurements from this blog's own boards.

Derek Molloy Derek Molloy · Jul 15, 2026 · 13 min read