Author Archives: anescient

TypeScript: You Can Read It

TypeScript is billed as JavaScript with types, which is great and high tech and useful and all, but I really like that you can just write code that describes a class rather than writing code that meticulously constructs a class-like … Continue reading

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Custom Aftermarket Blinkenlights

Have you ever thought, “My computer needs way more flashing lights.”? Me too! Now, I’m not talking about meaningless, gaudy special effects. I’m talking about proper blinkenlights.

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How to Speak NeoPixel

Adafruit calls them NeoPixels, but their real name is WS2812 or SK6812. They’re handy little RGB LEDs with built-in controllers. They use a single-wire anisochronous self-clocking signal, so controlling them requires some precise timing. There’s an easy-to-use Arduino library available, … Continue reading

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Spooky nulls in an ArrayList

I had a crash reported for one of my Android applications. Thankfully that includes a stack trace, because I would never have found this bug without it. I learned something new about concurrently accessing an ArrayList.

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A Gentleman’s Orthonormal Basis Rotation

So you need to draw curved and bent pipe-tube-things. You can make a straight section with two rings of points; just orient one ring like so, the other ring like so, and draw triangles between them. For a curve, just … Continue reading

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