Bookmarked. This is the kind of content I come here for

This is the way

Following this thread for updates

The LDO quiescent current is often the limiting factor in deep sleep. A good LDO can be under 1uA.

I switched from Arduino IDE to PlatformIO two years ago and never looked back. Library management is so much better.

Using a NanoVNA to tune a PCB trace antenna was fascinating. The Smith chart made intuitive sense immediately.

Love the detail in this write-up

Stirrups are another technology whose ancient absence is worth noting. The Scythians managed impressive horse archery without them; the Parthians and Romans managed cavalry without them. Their introduction in the early medieval period changed what cavalry could do.

The bar Kokhba revolt's consequences — the complete destruction of Jewish presence in Judea and the renaming of the province as Syria Palaestina — are underemphasized in histories that focus on the better-known 66-70 AD revolt.

Hard disagree on this one, but I respect the take

The VFD driving requirements are tricky. The isolated filament supply detail saved me from a ground loop problem.

Op-amp golden rules are how I teach analog to digital people. Once you internalize them, most circuits are obvious.

The e-ink SPI busy pin polling requirement is almost always missing from beginner tutorials. Critical detail.

The Raspberry Pi zero-crossing detection approach for power monitoring is clever. Good use of the hardware.

STM32 CubeMX makes peripheral setup fast. I use it even for bare-HAL projects just for the clock config.