Recent updates:

The fifth eight weeks of shelter-in-place stress baking with Jill 1 hour ago
Jill was just getting over being reminded of how long this has gone on and now they are going to be reminded that it's been 40 weeks. Happy Hollidays! Not included was making two two-person-feasts for my spouse's religious observances, which included that I can now make one of the really hard…

The fourth eight weeks of shelter-in-place stress baking with Jill 1 week ago
This update is really late. Like, I've been sitting on the set since October, but a lot of stuff came up. We had the election, which has been going on for, at last count, two years. And my dishwasher broke. And there were holidays. And that's just the things that caused me to not get around to…

Trying out Ponoko and the FreeCAD Laser Cut Interlocking workbench 1 month ago
tl;dr: The Laser Cut Interlocking workbench is the first tool I've found that feels like it might make the process of designing three dimensional structures to be laser cut easier. And Ponoko is kinda neat once you get past the $14 per-order charge Why is laser cutting cool? I should probably…

Gate driver test: PWM switching a half-amp at 80 kHz PWM with a MOSFET 1 month ago
tl;dr: At 80 kHz where the MOSFET switches 0.5A at 5V, a gate driver makes a small but measurable difference in switching speed. It makes a clear difference in heat generated as you switch increasing amounts of power. It's better to do PWM at a high frequency. Ideally, you want the frequency to be…

A vaguely finished ESPHome node for my geekroom 2 months ago
Some five months ago , I wrote about how I got started with ESPHome with an ESP8266 and a temperature/humidity sensor on a breadboard. I figured that I'd build it over time. I'd realize that there would be something that would be really nice to add, and so I'd find some parts to do it, or try out…