33 leds, 4 wires: My design for flowing leds on Arduino

A dodgy yet neat little trick I discovered (well, it came to me in a dream, and seems to work IRL as well) that I thought I'd share with you. It requires only minimal components, and is quite simple. Links to code (both to the same file): https://pastebin.com/cbTYPjWf https://drive.google.com/open?id=1BW9qjP1Aogvh4FC3uZdy3Lkw9Yg80JSg

WizardsOf12 on Deviantart: https://wizardsof12.deviantart.com/ The music channel: https://www.youtube.com/channel/UCbnPkyuHMycg_VsEAg7ACwQ

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