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2024 Summer School: High-Schoolers Build 9 Brain-Machine Interfaces!

2024 summer school

— Written by Jelena Ciric —

This summer, we’ve beat our own record: in just under two weeks, 20 high-schoolers created nine projects using what is shaping up to be our most creative neuroscience kit ever!

The tool (or should we say meta-tool?) called Neuro:Bit lets you build brain-machine interfaces (BMIs) that work using your body’s electrical signals. Depending on the project, you can design and 3D-print the case of a desired BMI, integrate with an existing gadget such as bluetooth headphones, or even cut the case out of cardboard. What you need are two things: a Neuro:Bit to pick up your body’s electrical signals that power the interface, and one or more Micro:Bits, the famed microcontrollers designed by Microsoft and BBC, to add more functionality.

Backyard Brains Neuro Bit

This summer school was the first time the Neuro:Bit was let into the wild. Straight away, it demonstrated an ability to integrate different disciplines. “It’s another of our democratic tools where neuroscience overlaps with electrical engineering, physical science, math, anatomy, so you can easily inject or sprinkle neuroscience into the classroom. When you look at things that inspire people, it’s all interdisciplinary and it’s all about collaborations between individuals rather than competition,” says Alex Hatch, our product designer, inventor and roboticist.

So who are the kids who gave a whirl to Neuro:Bit this summer? They all come from Belgrade or thereabouts, and most of them had little to no prior experience with programming or building things. Yet it didn’t stop them from creating their very own BMIs with the help of several undergraduates from the University of Michigan as well as our resident scientists. “It tooks them just a few days to go from zero to making computers that do amazing stuff,” our co-founder Dr. Greg Gage points out. “Last year, we developed a whole bunch of neuroscience experiments. But this year, we decided to do something different. We’re going to use the info that comes out of the brain (through muscles, eyes, heart) and have them take that info and convert it into a creative devices. It lays on the creativity aspect.”

The kids worked in 2 separate cohorts, having only five days each to build their machines from scratch. All the projects are now getting written up in our docs repository, along with full tutorials as well as Python/Java Script codes and ready-made STL files for 3D printing. Meanwhile, here’s a foretaste of what you can expect!

TABLE OF CONTENTS: Neuro:Bit Student Projects

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2024 Summer Research Fellowship: High-Schoolers Design Brain-Machine Interfaces

2024 summer research fellowship in action

— Written by Jelena Ciric —

Move aside, air guitars! Thanks to one of our latest projects, it is now possible to air-conduct music so that it actually changes in tempo and volume as you move your arms.

This so-called neuro:baton is just one of 12 cool projects being developed on our 2024 Summer Research Fellowship that’s firing up as we speak. Within the following two weeks, 20 high-schoolers will be designing and/or honing these experiments in small teams. Like last year, this Fellowship is happening in Belgrade, Serbia. Also like last year, it will result in a handful of brand new experiments—some to be published in our new book on the inner workings of our mind and consciousness!

Others will hopefully make it to reputable peer-reviewed journals. (Yes, we can’t get enough of high-schoolers publishing papers ever since we nailed it on our first try.)

The talented kids recruited from Belgrade’s high schools are being mentored by two tiers of support: four undergraduates from the University of Michigan who piloted some of these experiments, plus our resident scientists and engineers.

neuro baton project
This is Sofia, one of the undergrad mentors and designer of the neuro:baton.

But making your arm muscles mightier than Herbert von Karajan’s isn’t the only thing our Fellows are working on. Other projects include:

  • a robotic keyboard that’s to be controlled by leg muscles,
  • Spiker-Man armband that flings web when you flex your fingers,
  • glasses that detect your eye blinks,
  • and more…

Say Hello to neuro:bit

You’ve guessed it by now: there’s a new gizmo in the Backyard Brains toolbox. It’s called neuro:bit, and it’s a tool that lets anyone easily build brain-machine interfaces (BMIs, also called BCIs or brain-computer interfaces). It interfaces with electrical signals from your body, and integrates with micro:bit, BBC’s award-winning educational microcomputer!

The only other thing you need is our standard orange cable with 2 recording electrodes and a ground.

neuro:bit, backyard brains tool

We’re putting together a repository with product documentation and experiments, where the new experiments will be added too. Check it out here, and stay tuned for more BYB news!


The Fantastic Muscle Music Machine Experiment Trilogy

Music is a passion, an art, a science, but maybe most importantly… music is fun! Variations of “electronic instruments” can be traced back as early as the late 1700s, but it is no exaggeration to say that the biggest breakthrough was the invention of Synthesizers in the 1950s. This marriage of music and electrical engineering undoubtedly has inspired and continues to inspire people to learn more about both the science of electricity and music.

Our newest trilogy of experiments is designed to get any student or hobbyist experimenting and developing with a new kind of musical interface…. a Brain-Music Interface! Electrical signals from your brain and your muscles will become the music you hear. Check out the experiments below!

Making Music with a Muscle

This lab is an excellent introduction to Arduino Programming and to Modifying Pre-Written Code. You and your students will begin by uploading new code to the Muscle SpikerShield, then we’ll show you just how to modify it so you can play your own musical creations!

Experiment: Making Music with a Muscle

The Multiple Music Muscle Generator

Use the Muscle SpikerShield Pro to control up to six independent outputs. In this case, it will be musical tones. Time to generate music by moving your body. Your dancing makes the melody and the beat!

Then experiment and change the notes and tones your muscles will generate.

Experiment: The Multiple Muscle Music Generator

The MIDI Muscle Machine

The prophecy is fulfilled, and you will become the music and the movement! Control a real musical instrument with your muscles via the MIDI interface. Now you can interface your own nervous system with real electronic instruments! Invent new styles and forms of music!

See it featured on the Chilean show El Hormiguero where guest Antonio Banderas gets to see how its done!

Experiment: The MIDI Muscle Machine

The Tools to Make it Possible


You are in control… literally! Now you can control machines and electronics of your Arduino projects with the electrical activity of your muscles! What will you create?

Take your DIY biohacker projects to the next level with the Muscle SpikerShield Pro, a Human-Machine-Interface device that allows you to record EMG signals from up to six muscles at a time!