Michael E JohnsonDIY Solar Powered Window Air Conditioner: Part 2, Redesign/PrototypeI’ve been building a solar powered Air Conditioner that can sit in a window and help take the edge off the heat in one of the rooms in my…·4 min read·Apr 23, 2024----
Michael E JohnsonDreamcoat: Cosine Similarity using Bit Values (Part 1)Complex floating point vectors can be (I hope to show) accurately represented by binary values converting each floating point number down…·7 min read·Mar 28, 2024----
Michael E JohnsonVSDB: My Experiments with VectorspacesAnyone familiar with the LLMs and “retrieval augmented generation” (RAG) probably knows how vectorspace engines are used now as a way to…·7 min read·Mar 26, 2024----
Michael E JohnsonNixtamalizing Millet for Corn-Free Tortillas, First Attempt.Nixtamalization is an food preparation method invented by indigenous peoples in the Americas that increases the nutritional value of foods…·7 min read·Dec 11, 2023----
Michael E JohnsonPenny For Your Thoughts: Electrolytic Neural Nets, Part 5There’s been some exciting development in solid-state and discrete neural networks based on solid state memristors. In 2023, a paper was…·5 min read·Nov 9, 2023----
Michael E JohnsonInkwell Battery Update 2023: Progress2023 has been a big year for the inkwell battery. Book writing continues, and I’ve been steadily improving my construction techniques to…·5 min read·Nov 7, 2023----
Michael E JohnsonDIY appliance backup power from repurposed 48v power tools.I dearly love my Snapper 48v mower and power tools, but they don’t offer an inverter that can run off them like some other power tool…·9 min read·Sep 24, 2023----
Michael E JohnsonSuper cheap DIY air filter to deal with the wildfire smoke.Smoke from the Canadian wildfires has gotten really bad this year. Luckily, there’s a cheap and readily available way to filter the air in…·3 min read·Jun 28, 2023----
Michael E JohnsonDIY Solar Powered Window Air Conditioner: Part 1, Design/Parts/PrototypeCooling and water harvesting will become exceedingly important in coming decades, so it’s imperative we start using ambient energy to do s…·9 min read·Jun 16, 2023--5--5
Michael E JohnsonLED Toggle Switch: From Learning About Debounce to Prototype to PCB.Walkthrough for a PCB that allows us to toggle an LED with a satisfying “click” from prototype to fully manufactured PCB using a PB86…·12 min read·May 19, 2023--1--1