Exploring Raspberry Pi
Wiley · 2016
Interfacing to the Real World with Embedded Linux. The field-guide for hardware interfacing.
NEW · INTERACTIVE BOOK
Notes from the edge of silicon
Essays, experiments, and teaching materials from a decade of wiring software to hardware.
By Prof. Derek Molloy
DCU
Dublin City University
CH1 · SAMPLE LOOP
Featured
From the bench
AI
FEATURED
Giving Claude Code a Logic Analyser: A Minimal Bench Harness for Zephyr on the nRF52840
An AI coding agent can write, build and flash firmware, but it cannot see the LED. This article builds a small Claude Code harness for Zephyr on the nRF52840 DK that closes the loop with real measurements from an Analog Discovery, and shows what it caught that reading the code never would.
OpenMV
The OpenMV AE3: A Time-of-Flight Doorman for the NPU
Part two of the OpenMV series shrinks the board and the power to a quarter of a watt, while running YOLO. Built on Alif's Ensemble E3 with two Cortex-M55s and two Ethos-U55 NPUs, the AE3 also carries something its bigger sibling does not, a VL53L8CX 8x8 ToF depth sensor.
Derek Molloy
·
Jul 26, 2026
·
42 min read
OpenMV
The OpenMV N6: A MicroPython Camera with a Real NPU
The OpenMV N6 pairs an 800 MHz Cortex-M55 with ST's 600-GOPS Neural-ART NPU and a removable global-shutter camera, and MicroPython - YOLO object detection at 30 fps, in Python, under a watt. We tour the hardware properly, walk through setup, and build a people-counting application on the NPU.
Derek Molloy
·
Jul 24, 2026
·
25 min read
Latest articles
Recently published
AI
From Schematic to Pin Map: Driving PdfCraft, PhotoCraft and VectorCraft from Claude Code over MCP
Three open-source ArtCraft desktop apps expose MCP servers, which lets Claude Code read a schematic PDF, draw a vector pin map from a Zephyr overlay, annotate a board photo and assemble a lab handout. This is a step-by-step guide to the setup and a record of documenting the nRF52840.
Derek Molloy
·
Nov 11, 2026
·
42 min read
Teaching
MECE module planner (Jan 2027 Entry)
A holding post with an interactive module selection tool for MECE students entering DCU Engineering in January 2027. Please contact Richard Bolger directly if
Derek Molloy
·
Nov 11, 2026
·
16 min read
Beginners
MCTY module planner (Jan 2027 entry)
If you start MCTY in January 2027, the programme runs over 20 months. In January you register for your three Semester 2 modules only. You register for the rest of the programme in September 2027: three Semester 1 modules, two Semester 2 modules, EEN1101 and EEN1095.
Derek Molloy
·
Nov 03, 2026
·
14 min read
Teaching
The MCTY Programme (DC877) at Dublin City University
In this webinar I introduce our one-year MSc in Electronic and Computer Technology
Derek Molloy
·
Oct 31, 2026
·
1 min read
AI
PID on a Microcontroller: Making Timing Visible in a 3D Game
A follow-on to PID Flight School. The drone's roll loop runs on a simulated Cortex-M under Zephyr, so students can see what loop rate, fixed-point maths, sensor resolution and thread priorities do to a controller.
Derek Molloy
·
Oct 27, 2026
·
2 min read
AI
PID Flight School, Studio Edition: One Lesson, Two Looks
The second visual style of my PID Flight School game. Once the lesson is fixed in code, changing how it looks is cheap, but a more ambitious look has costs that you need to test for.
Derek Molloy
·
Oct 25, 2026
·
2 min read
AI
PID Flight School: Teaching a Control Loop as a 3D Game
I turned the PID demonstration from my Connected Embedded book into an eight-mission 3D game with Claude Code. This short post is about what that means for teaching.
Derek Molloy
·
Oct 25, 2026
·
3 min read
Beginners
MECE Module Selection (Sep 2026 Entry)
An interactive selection tool for students beginning MECE in September 2026
Derek Molloy
·
Sep 01, 2026
·
5 min read
Books
Writing from the last decade
Exploring BeagleBone
Wiley · 2018 · 2nd ed.
Tools and Techniques for Building with Embedded Linux on AM335x and AM5729.
LIVE
Edge Programming with C/C++ and Rust
STARLIGHT · ONGOING · 2026
A live, interactive textbook. Runnable code blocks, guided terminal sessions, schematic marginalia — the lab, in a browser.
Open bookDerek Molloy's textbooks, Exploring BeagleBone and Exploring Raspberry Pi, are originally written and published in English. Because they are widely used as core engineering texts in universities around the world, they have also been officially translated into several languages.
Amazon →
Exploring BeagleBone (1st ed.)
English
Kyobo →
Exploring Raspberry Pi
Korean · 한국어
Amazon →
Exploring Raspberry Pi
Spanish · Español
Dangdang →
Exploring BeagleBone
Chinese · 中文
Amazon →
Machine Vision Algorithms in Java
English
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