Designing serial tools for hostile benches
Isolation, fault models, and the unglamorous details that make an instrument interface trustworthy.
Notes on embedded.
3 technical notes in this archive.
Making ESP32 radio firmware observable
A practical state model for radios, storage, an LCD, and a browser interface sharing one constrained device.
Three ways home for field firmware
Why a browser flasher, UF2 fallback, and explicit bootloader path are one recovery system rather than redundant conveniences.