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Raspberry Pi turns cryptocurrency into music

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Reading Time: 2 minutes

Forget Beanie Babies as McDonald’s Happy Meal toys, or U2’s new album magically appearing on everyone’s iTunes list: the collaboration of the century is here. Estefannie Explains it All answered a call from LOOK MUM NO COMPUTER (aka Sam) who was looking for a coding genius to bring his cryptocurrency-measuring musical machine to life.

Sam wanted to use the up-and-down nature of cryptocurrency value to generate voltages that would power synthesisers and generate sounds. He’s good at music, but middlingly bad at the coding side of things, and so he roped in Estefannie’s smarts to devise a solution.

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The Raspberry Pi bit

Estefannie‘s plan involved a Raspberry Pi and some pulse-width modulation signals, which can be filtered down into analogue voltages.

A breadboard for prototyping a. cryptocurrency music instrument.
Estefannie’s breadboard of cryptocurrency LEDs

She marked this all out on a breadboard, with ten LEDs connected to Raspberry Pi standing in for ten cryptocurrencies. The Raspberry Pi pins send voltages to the LEDs that correlate with the real-time percentage of change the cryptocurrency values experience.

The music bit

In order to make the monotone output of Estefannie’s creation sound more musical, Sam needed more than one cryptocurrency to be heard at a time, and to be able to alter the chords. So he built ten analogue circuits on perf boards. These slow down the changes in the cryptocurrency values, altering the audio output. And ten separate oscillators allow each board to interact with each other. Sam explains it much better, so check out his build video.

The analogue circuits inside the cryptocurrency music instrument.

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Sam’s army of analogue circuits

Transatlantic collaboration videos

This is a cool mash-up of a project, with each maker producing brilliant videos focusing on the separate expertise they brought to the build.

If you want to dig deep into the marathon coding session Estefannie performed to create this musical machine, check out her project video:

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Estefannie’s video goes deep into the coding side of things

And if you’re interested in the analog musical side of things, check out Sam’s:

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Sam focuses on the musical element of the project

Hour-long cryptocurrency concert

If you actually trade cryptocurrency, this would be a whimsical way to keep an eye ear on market changes. If you don’t trade cryptocurrency and you also don’t have the skills to build something like this, then you can just pretend.

Sam has produced an hour-long ‘performance’ video of the machine doing its thing. So stick it on in the background next time you’re doing busy work at your desk and pretend you’re also a crypto-trading coding artist.

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One-hour performance video

Website: LINK

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What do you think?

Written by Maria Richter

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