EMBEDDED SYSTEMS FIELD NOTES

Building, debugging, and reviewing
embedded systems.

Hi, I'm Hywel, an embedded software engineer.

I work on Linux and Android internals, device drivers, and multimedia systems. This site documents debugging from symptoms to root causes, along with practical commands and engineering notes.

Browse field notes GitHub

Linux kernel · Drivers & hardware · GStreamer · Engineering tools

Embedded Linux board, terminal logs, and multimedia pipeline illustration
From hardware bring-up to system debugging and multimedia pipelines.

01 / TECHNICAL AREAS

Explore by topic

Explore practical notes across embedded systems and multimedia engineering.

01Engineering ToolsGit, Linux utilities, build systems, debugging, and networking 02Embedded LinuxBoot flow, kernel, filesystems, OTA, security, and debugging 03Drivers & HardwareLinux drivers, buses, USB, display, cameras, and GNSS 04Audio & VideoStreaming, media players, and GStreamer

02 / PROJECT

HywelStar Video Player

A multi-protocol player built with Qt 6 and GStreamer. The project notes cover decoding, playback, and device integration.

QT 6GSTREAMERRTSP / RTMP

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HywelStar · Embedded Systems Field Notes About