lcamtuf: "My 101 of analog electronics, …" - Infosec Exchange
thorough, accessible
Proper decoupling practices, and why you should leave 100nF behind – codeinsecurity
"[G]iven that the cost to use a larger, better capacitor is effectively nil in most cases, you can keep experiencing that exact same level of cognitive load avoidance by just using 1uF or 2.2uF instead, in the smallest capacitor package that is practical for the voltage and assembly constraints you have, and placing it right up against the power pins. It’s free real estate, or something."
MUPS/16 - MMU
implementation of an MMU "from scratch" (i.e. a bunch of 74xx chips and some SRAM)
Gingerbread
"a tool for converting vector artwork to KiCAD PCB files that lives in your browser"
Inside a ferroelectric RAM chip
detailed description with lots of links
Turning Everyday Gadgets into Bombs is a Bad Idea « bunnie's blog
"we should approach the public policy debate around this assuming that someday, we could be victims of exploding batteries, too"
Pico as Z80 RAM & RAM: Homebrew Retro Computer Part 2 – Maker Hacks
with just a little bit of micropython code. neat!
CircuitVerse - Online Digital Logic Circuit Simulator
"a digital circuit simulation platform... designed primarily for educational use... an open-source project with an active community"
EPDiy: 9.7"/6" E-Paper controller | Hackaday.io
"a driver board which talks to affordable E-Paper (or E-Ink) screens, which are usually sold as replacement screens for E-Book readers... This project uses Kindle replacement screens, which are available for 20$ (small) / 30$ (large) on ebay!"