Tech

Fusion 360 Comprehensive Cheat Sheet

This page list some of the common things a new user of Autodesk Fusion should know. Right now, the page is a mess. Don't even know if it's accurate.

RCS Interoperability — Why Messaging Is Still Broken in 2026 Cross‑platform messaging is still broken in 2026 because the companies responsible for fixing it never had the incentive to do so. RCS was supposed to replace SMS, but carriers dragged their feet, Google built its own version, and Apple resisted interoperability to protect iMessage’s lock‑in. Even Apple’s new “RCS support” is intentionally limited — no cross‑platform encryption, no feature parity, and the green bubble stigma remains.

Unified Markdown Cheat Sheet

This page provides a comprehensive, single‑page Markdown reference showing syntax and compatibility across VS Code, GitHub, and Hugo.

Arduino and Compatible Boards

This document provides an overview of Arduino. (But, now that Qualcomm is involved, I may have to scrap the whole thing. Is Qualcomm going to wreck the platform? Lots of chatter but unclear about what is factual.)

Microcontroller Direct Memory Access (DMA): Architecture, Behavior, and Practical Design Considerations

This document provides a comprehensive, deeply detailed explanation of Direct Memory Access (DMA) in microcontrollers, how it interacts with peripherals, how it differs from PC‑class DMA, and why it is essential for real‑time audio and display systems such as a professional audio diagnostic tool. This is preliminary research that I'm doing. I'm 100% new to this technology, so anything I say here could be wrong!

Teensy 4.1

This document provides information about the Teensy microcontroller.