The Reflexes Machine turns a reaction game into an interactive experience
What happens when you combine a little imagination with a powerful dual-brain board and a handful of building-block sensors? In the case of Arduino community member LucaDilo, you get a reaction game that doesn’t simply wait for someone to press a button… it actually notices when you walk up and invites you to play.
Reflexes Machine is an arcade-style reaction game built entirely around the Arduino® UNO™ Q board and 12 Arduino® Modulino™ nodes. A USB camera detects the player’s face, triggering the countdown automatically, while four illuminated arcade buttons give players a familiar physical interface. Eight Modulino LED Matrix displays work together to show a live stopwatch, with sound effects handled by UNO Q via Linux. It’s a great example of what becomes possible when hardware, software, and creativity come together!
Two brains, one creative playground
The project makes great use of the dual-brain architecture inside UNO Q, which brings together Linux computing and real-time microcontroller capabilities on a single board. The Reflexes Machine uses both sides of the board to provide a combination of intelligence and responsiveness: computer vision handles the experience of recognizing when someone is ready to play, while the connected hardware provides the physical interaction that makes the game feel like an arcade machine.
And then there are the Modulino modules. The project uses Modulino LED Matrix modules to create the stopwatch display and Modulino Pixels to provide visual effects, alongside a Modulino Thermo module. Because the modules communicate over the I2C bus, the project can bring multiple instances of the same type of module together; with an address-changing utility, you can even manage multiple Modulino on the same bus.
That modularity is important because it keeps the focus where it belongs: on the idea. Modulino allow you to combine ready-to-use sensors and actuators like building blocks, and put your brain power into what you want your project to do.
From building blocks to something uniquely yours
There’s nothing particularly complicated about the basic ingredients of a reaction game: detect a player, start a timer, light things up, play some sounds, and wait for someone to hit a button. What makes the Reflexes Machine interesting is what happens when those ingredients are brought together, making the result feel like a finished interactive product.
That accessibility, ease of use, and seamless compatibility is what we work hard to provide, so you can decide what to build with it: a reaction game can become an arcade cabinet, an interactive installation, a training tool, an educational project – or be the starting point for an idea nobody has thought of yet!
It’s your turn now!
Check out the Reflexes Machine tutorial on Arduino Project Hub and explore many projects that people just like you are already building with UNO Q – spanning from computer vision to interactive devices.
You can get your own UNO Q from the Arduino Store, or order it from DigiKey, Farnell, Mouser, Newark, RS Components, Robu.in, and many other authorized distributors and resellers worldwide.
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