SYSTEMS ENGINEER / PHOTOGRAPHER / MAKER
From registers
to the real world.
I build things from the ground up: firmware that talks directly to hardware, systems that run on solar power, and tools that make complex information useful.
I dabble in landscape photography, songwriting, woodwork and in my spare time swim, enjoy live music and brew coffee for charity.
Explore the work
SELECTED WORK / FOUR SYSTEMS
Low-level engineering, from direct-register firmware to document analysis.
01 / STM32WB55 / CORTEX-M4
A control stack for ambient-light sensing, five gamma-corrected PWM lighting channels, INA226 power telemetry over I²C and multiple DS18B20 temperature sensors discovered over a hand-written 1-Wire ROM search.
while (1) {
Update_Ambient_Light();
Update_Temperature_Readings();
Set_LEDS_By_Ambient_Light();
Delay_MS(2000U);
}02 / PHYSICAL BUILD
An autonomous STM32WB55 greenhouse combining direct-register C, solar power, lighting, heating, environmental sensing and a hand-built modular enclosure. The interactive version contains a 16-chapter chronological build log.
03 / DRIVER PREVIEW
An IOKit kernel extension and user-client CLI for NCT6796D register access, fan RPM measurement, temperature readings, post-boot MMIO modification and custom fan curves. Runtime screenshots are reserved for the next project update.
04 / PYTHON / NUMPY / ARM NEON
A layout-analysis pipeline that turns font, geometry and block statistics into mixed feature vectors, clusters document roles with K-Prototypes and caches model choices by document hash. A CPython C extension adds an ARM NEON categorical-dissimilarity path.
PHOTOGRAPHY / FIELD NOTES
Travel, landscape and the details between. Select a photograph to view it in full.
This interactive portfolio contains a text version of Stuart's three-page CV, code-led case studies covering ARM Cortex firmware, a solar greenhouse, a macOS fan driver and PDF-to-eBook tooling, plus travel photography collections from Edinburgh, Lake Garda, Marrakesh and Oxford.
Download Stuart Yeadon's CV as a PDF