NEW GUIDE: Dotstar + CircuitPython Digital Sand
LEDs are made of silicon – pretty much digital sand – so this just makes sense.
Something that has gotten popular recently is Phil Burgess’ digital sand demo. It’s been riffed on a few times now, and since I have been playing around with the Dotstar Featherwing, I thought I’d have a go at it as well.
I really wanted to do this in CircuitPython, partly as a learning exercise since I’m still fairly new to (Circuit)Python, and partly to see how far it could be pushed on a rather constrained environment like the SAMD21G18.
The code is a fairly literal port of Phil’s code as listed in the Ruiz Brothers’ Animated LED Sand learning guide. I did have to make some changes, and do some optimization to get it all to fit and to run at a reasonable speed. I’m pretty happy with how it turned out. I’ll go over those optimization on the code page.
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