NEW · INTERACTIVE BOOK

Notes from the edge of silicon

Essays, experiments, and teaching materials from a decade of wiring software to hardware.

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By Prof. Derek Molloy DCU Dublin City University

src/sample.c

CH1 · SAMPLE LOOP

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Zephyr FEATURED

The Zephyr Web Server, Now in C++: Classes for Embedded Hardware

A short follow-on from the Zephyr Thread web server guide, rebuilding the same project in C++ on the Seeed XIAO nRF52840, and adding the RGB LED and the on-die temperature sensor to show why classes suit Zephyr hardware so well.

Derek Molloy · Jul 06, 2026 · 22 min read

Zephyr

A Zephyr Web Server on the Seeed XIAO nRF52840, over Thread (C/C++)

In an earlier guide we built a tiny web server on an ESP32-C3 in async Rust, using Embassy. A browser could connect over Wi-Fi,

Derek Molloy · Jul 03, 2026 · 34 min read

Rust

An Async Wi-Fi Web Server on the ESP32-C3 with Embassy and no_std Rust

This guide explains how Embassy ties an ESP32-C3 Wi-Fi web server together. It assumes you are comfortable with basic Rust (ownership, traits, match) but new to embedded async.

Derek Molloy · Jun 28, 2026 · 23 min read

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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 · Jul 15, 2026 · 13 min read

Edge-AI

From TinyML to Tiny Language Models: the State of Edge AI in 2026

A field guide to state-of-the-art edge AI in 2026, covering the models that now run on small devices, the neural accelerators that make them possible, and federated learning, grounded in the low-cost hardware used throughout this blog.

Derek Molloy · Jul 10, 2026 · 20 min read

ESP32

A Low-Cost Thread Border Router: ESP32-C6-WROOM as an OpenThread RCP for Home Assistant in Docker

Thread is the low-power IPv6 mesh that underpins most Matter smart-home devices, and to use it you need a Thread Border Router (a bridge

Derek Molloy · Jul 01, 2026 · 20 min read

C++

Teaching Edge Programming: C++, Rust and Embedded Linux in the age of LLMs by Derek Molloy (2026)

This talk reflects on practical experience teaching C, C++, and Rust for edge programming in Electronic and Computer Engineering at Dublin City University, where language choices are shaped by emerging industry needs and sound educational pedagogy

Derek Molloy · Apr 23, 2026 · 1 min read