Neat project! I'd be interested in how the power supply is done. I've wanted to do things with LEDs like this, but not knowing much about electronics this always seems the most complicated part to me, specifically powering both the micro-controller and the LEDs with a single wall plug in a safe and reliable way.

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thesh4d0w 34 minutes ago | parent [-]

It's not really hard at all, calculate the max power the leds will draw and get a psu that'll never exceed 90% of that. Your average usage will be waaay lower anyways since you don't usually show all white.

5v power supplies are easily available, Meanwell is a popular & reputable brand. The same psu can run your lights and microcontroller.

	▲	MarkusWandel 28 minutes ago \| parent [-]
		Fully lit, these would be blindingly bright, and would need tens of amps of power supply (source: I have a strip of 100 WS2813s (I think, anyway the 12V ones) and the 3A supply I have would be fully loaded if they were all on full bright white. These suckers are bright). However, you can always just limit it in software. Total "brightness budget" for the display, scale everything to dimmer if exceeded.