A 42 society · Paris

Read the body.
Control the machine.

You've heard of Neuralink. This is the same idea, hands-on and beginner-friendly: use the signals from your brain, muscles and eyes to control software. Move a cursor, play a game, type without touching a keyboard. No experience, no hardware needed to start.

Join the Discord See the first workshop

EEG8 ch · 256 Hz

EMGsurface · 1 kHz

EYEwebcam · 30 fps

CTRLcursor / game / sim

Signal → feature → control · live trace ↑

01You've seen this

You've already seen this. We just make it hands-on.

Brain-computer interfaces aren't sci-fi anymore. Same tech you've seen in the news, here's what it actually does, and what you'll get to play with.

A laptop screen showing text being typed with no hands on the keyboard, an EEG headset blurred in the foreground

Neuralink & Synchron · brain

Typing with your thoughts

Chips in the brain let people who can't move control a cursor and type with their mind.

Open Bionics · muscles

Hands that move when you flex

Muscle signals already drive prosthetic hands that open, close and grip on command.

A close-up of an eye being tracked by software

Apple Vision Pro · eyes

Pointing with your eyes

On a Vision Pro you select things just by looking. A webcam can do a lighter version.

Already real at NeuralinkSynchronOpen BionicsEmotivOpenBCIApple Vision ProMuse

02What we do

Turn your body's signals into software you can drive.

We're the software side of neurotech. We take the tiny electrical signals your body already produces and turn them into something you can control on screen: a cursor, a game, a simulation. Lots of building and live demos, very little theory. Open to every 42 student, whatever your level.

Biosignals

Your brain and muscles constantly give off tiny electrical signals. We learn to record them cleanly, from free public datasets or a simple headset.

Making sense of it

We turn a messy raw signal into something a computer understands. The best part: you literally watch your brain light up on screen.

Eye-tracking

Your webcam can already follow your gaze and catch your blinks. No special gear, just a bit of code.

Software control

The payoff: your body controls the software. Move a cursor, fire in a game, flip a switch, all without touching anything.

Two students reading live brainwave signals on a laptop

No experience required

This could be you, two sessions from now.

Come as you are. We start from zero and build something you can actually run by the end.

03Formats

Concrete, hands-on, open to every level.

Workshops

Build something running by the end of the session: a filter, a classifier, a controlled cursor.

Talks

Short, sharp sessions on BCI, signal processing and where the field is going, from students and guests.

Mini-projects & demos

Small teams ship a focused build, then demo it live on campus. Proof over slides.

Hackathons

A weekend, a signal, a goal: control something with your brain, muscles or eyes. Best demo wins.

04First session

The first workshop is ready to run, today, with zero hardware.

Our very first session, ready to go. Public datasets, a webcam and a laptop are all you need to take part.

Workshop 01 · no hardware needed

Introduction to biosignals: controlling software with eye blinks & EMG-like signals

From a raw recording to a working control loop in one session. You leave with code that runs on your own machine.

public EEG/EMG datasets signal visualization simple classification signal-controlled mini-game webcam eye-tracking real-time Python / C++

EMG burst · threshold → fire

Join us

Curious about neurotech? Come build with us.

42 Neurotech is open to every 42 student who wants to play with biosignals, BCI and human-machine interaction. No experience needed, just curiosity. Everything happens on our Discord: workshops, demos, questions and the people building it all.