How real robots sense, think, learn, and wiggle — then a tour of Reachy Mini, our desktop teammate.


A disc that lives under the couch — and it's still a real robot.

Not a cartoon. This robot walks over rocks, stairs, and factory floors.

They don't chat. They don't walk. They still count as robots.

A robot the size of a car — taking a selfie on another planet.

Not every robot is a metal arm. Some are built to chat.

A robot so big an astronaut can stand on it.

This one DOES look like a person — on purpose.

Four skinny arms. A human doctor is still the boss.



Sensors · Brain · Learning · DOF


















Humans write every step. “If the bumper hits, turn left.” Great for doors. Bad for messy worlds.
They practice on lots of examples — photos, games, rooms — until patterns stick. That's AI.





yes / looking down
no / look left & right
ear toward shoulder

A factory arm needs 6 to place a tool. A walking humanoid needs dozens because legs + waist + neck + fingers all count.
Reachy Mini stays at 9 on purpose — a desktop face, not a walking worker.
Hugging Face × Pollen Robotics · open source

Your Mac / PC is the brain. USB cable. Same dance moves.

A Raspberry Pi CM4 lives inside. Wi-Fi + battery. Thinks on its own.





They sit in a row on top of the head. That's how Reachy can tell which side you spoke from — same trick as your two ears, with extras.
Based on a Seeed Studio ReSpeaker-style array. Fancy name, simple idea: more ears, better listening.


A Stewart platform is a team of motors pushing a platform from below — like a flight simulator, but for a cute head.





Homework of champions: point at three machines at home and ask — does it sense, think, AND act?
Photo credits
Reachy Mini hardware photos © Pollen Robotics / Hugging Face (Apache-2.0). Curiosity & Perseverance: NASA / JPL-Caltech (public domain). Spot: U.S. Air Force / SrA John Ennis (public domain). Tesla Optimus photo: Steve Jurvetson (Wikimedia Commons). Other robots & sensors: Wikimedia Commons contributors — Pepper, ASIMO, NAO, Atlas, Canadarm2, Tesla, Waymo, da Vinci, KUKA, ABB, FANUC, Raspberry Pi, Deep Blue, camera drone, and more.
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