Here's a write-up of how it works under the hood and how I built it benholmen.com/blog/halfmoo...

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I built a custom art installation / instrument for Eaux Claires and I'm so pleased with how it turned out! 3 modes: play live, record, or play back. Each recording got a custom receipt that could be scanned for playback 450+ people recorded music on it and it played 400,000 notes in 2 days

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Generate QR code that looks like 3D tree, by Manish Kumar. - Enter a URL and it grows a 3D tree from the code itself - The ground grid is the actual scannable QR - Switch between Spring, Summer, and Autumn - Tap the tree to flatten it and scan tree.icqr.com?q=MDBodHRwcz...

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Purchased $600 of aluminum for my next art installation today - you can see it at Eaux Claires fest next month!

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I built a very slow pixel display and hauled it to my local meetup last night. Finished my talk with 3 pixels to spare! More about the ridiculous project: benholmen.com/blog/kilopixel-season-1/

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