Using the WS2811 for controlling lights

Explanation and demonstration video on how the WS2811 chip can be wired and programmed to light a miniature building or even a whole day/night sky dome. Includes schematics, Python and Arduino code.

The new Nunchuck on the inside. Also notice the USB charging port on the bottom right.

With some hardware and software tinkering and time, it’s possible to turn a Nunchuck into a completely stand-alone wireless (PC) joystick. In this post, I’ll briefly go over how I achieved this, as well as share the open-source software and hardware resources I developed along the way.

Schmitt-triggered proximity detectors on a milled PCB

Auto leveling is key to precise PCB milling. I wrote some open-source software that makes it possible to do auto-leveling on a CNC USB Controller-based machine like my chinese 3020 CNC. This software controls the actual control software so that it starts probing a circuit board in a grid-like manner, after which it can compensate for any misalignment and curvature in the GCode.

Modifying LEGO

Discusses the limitations of my 3020 CNC machine as well as some of the ways to work around them, allowing me to successfully mill things like LEGO-compatible bricks and circuit boards.

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