Lumi
One
An ESP32-based creature that lives with you — desk, shelf, backpack, pocket. It notices you, has moods of its own, and gets on with others like it. Open hardware: the firmware is yours to flash.
A tiny buddy with a face
Lumi is a pocket-size companion: it hears you, talks back, keeps you company on the desk. Sit down and it turns your way.
A GPT-powered voice assistant with a face: ask it anything, let it run your smart home — lights, plugs, scenes — and get your phone’s notifications, timers and notes on the same little screen.
- Talksask anything, it answers out loud
- Notificationsshows who’s writing and who’s calling
- Smart homelights, plugs, scenes — by voice
- Timer & notes“ten minutes”, “write this down”
- Walks with youcounts today’s steps and is proud of them
They talk to each other
One chirps, one argues, the third can’t stop laughing. Nobody wrote that exchange — it comes out of what they hear from each other and from the room around them.
However many
you like.
Lumis share whatever room they are given. Add one and the others move over; take one away and the rest spread out. Nobody is placed on a grid — the crowd settles itself, and every so often two of them swap seats.
Drag the handle to change how many.
Out in the wild.
Check out our Instagram — @the_lumi_numi →
Print it a costume.
The body is a cartridge: Lumi slots into a printed shell and becomes someone else. A wave, a panda, a pineapple, a Roman helmet — one piece of plastic, no screws, no electronics, and the screen stays wide open. Print the ones you like, design your own, swap them in a second.
Lumi is still a prototype — the first STL files are coming soon.
It tells you
who’s writing.
Lumi shows your notifications and helps you not miss the calls that matter. Connect over Bluetooth — that’s it.
- Listens to the roomhears music and moves with the beat, catches laughter and joins in, jumps at a loud bang
- Sings alonghums to whatever you play
- Walks with youcounts today’s steps and brags about them
- Cooks with you“Let’s make spaghetti” — it walks you through the whole thing: step by step, times the water, tells you when to drain
- Timer“Ten minutes” — counts on its face and calls you when it’s up
- Keeps notes“Write this down” — and it’s in your notes
- Finds your phoneask, and the phone rings even on silent
- Guard modewatches the room while you’re out and tells you if something moves
- Baby monitorlistens by the crib, whispers to your phone when it hears a cry
- Feels handsknows when it’s picked up or flipped
- Meets otherstwo lumis chat between themselves
On the screen.
A face most of the time. Put a few of them side by side and they start showing widgets — weather and time, an aquarium, your messages. Widgets are set up by voice: just ask for what you want to see.
One face, many bodies.
Lumi is a prototype — born yesterday, still growing. The head you’ve seen is its first form. The platform is being built to be universal: the same face, voice and brain drop into other forms — a desk arm that turns to you, a round Lumi on wheels, a box-head on legs that walks after you, a panel on your wall. Same character, different bodies.
Your device, your firmware.
Lumi One is an ESP32-S3 board with a 1.83″ screen, microphone, speaker and IMU. Builds are published as releases — flash over the air, no cable, no soldering.