Lego's Smart Brick Gives the Iconic Analog Toy a New Digital Brain (wired.com)
(Tuesday January 06, 2026 @11:41AM (BeauHD)
from the new-and-improved dept.)
An anonymous reader quotes a report from Wired:
> At CES in Las Vegas today, Lego has unveiled its new [1]Smart Play platform , aimed at taking its distinctly analog plastic blocks and figures into a new world of tech-powered interactive play -- but crucially one without any reliance on screens. Smart Play revolves around Lego's patented sensor- and tech-packed brick. It's the same size as a standard 2 x 4 Lego brick, but it is capable of connecting to compatible Smart Minifigures and Smart Tags and interacting with them in real time. By pairing these components, kids big and small [2]can create context-appropriate sounds and light effects as they play with the Danish company's toys.
>
> [...] Lego is claiming this Smart Play platform developed in house by the company's Creative Play Lab team in collaboration with Capgemini's [3]Cambridge Consultants "features more than 20 patented world-firsts within its technology." The heart of the system is the Smart Brick's custom-made chip, measuring smaller than a standard Lego stud. Other elements crammed into the eight-stud brick are an LED light array, accelerometers, light sensors, and sound sensor, and even a miniature speaker. The internal battery will supposedly work even after years of inactivity, and to avoid any need for cable access to the Smart Brick once it's built into a beloved creation, Lego has also added wireless charging. Indeed, Lego has made a charging pad that will power up several Smart Bricks simultaneously.
>
> That all-important brain chip is a 4.1-millimeter custom [4]mixed-signal ASIC chip running a bespoke Play Engine, which interprets motion, orientation, and magnetic fields. A copper coil assembly enables the brick's tag recognition, while a proprietary "Brick-to-Brick position system" uses these coils to sense distance, direction, and orientation between multiple Smart Bricks. Moreover, Lego claims this use of multiple Smart Bricks creates a "self-organizing network" that requires no setup, no app, no central hub, nor external controllers -- and so no screens. A Bluetooth-based "BrickNet" protocol shares the data between the Smart Bricks.
>
> Sounds are handled by a tiny analog synthesizer putting out real-time audio (thus minimizing memory load) via the brick's miniature speaker, which uses the brick's internal air spaces to amplify sound. As a result, the audio effects are apparently immediate and can be used to enhance play with real-time sound. Lego insists there are no prerecorded clips of lightsabers or other pieces of audio being used as a cheat. Just like the Smart Minifigs, the 2 x 2 studless tile tags trigger sounds, lights, or behaviors tied to where they are placed or how they are played with. They communicate with other components through near-field magnetic connections. Each tile has a unique digital ID, which is read by the brain brick, while the minifigures -- outwardly identical to standard minifigs -- carry their unique digital ID on an internal chip.
[1] https://www.lego.com/en-us/smart-play?CMP=AFC-AffiliateUS-TnL5HPStwNw-2116208-1606623-10&consent-modal=show
[2] https://www.wired.com/story/lego-smart-brick-new-digital-brain/
[3] https://www.cambridgeconsultants.com/
[4] https://en.wikipedia.org/wiki/Mixed-signal_integrated_circuit
> At CES in Las Vegas today, Lego has unveiled its new [1]Smart Play platform , aimed at taking its distinctly analog plastic blocks and figures into a new world of tech-powered interactive play -- but crucially one without any reliance on screens. Smart Play revolves around Lego's patented sensor- and tech-packed brick. It's the same size as a standard 2 x 4 Lego brick, but it is capable of connecting to compatible Smart Minifigures and Smart Tags and interacting with them in real time. By pairing these components, kids big and small [2]can create context-appropriate sounds and light effects as they play with the Danish company's toys.
>
> [...] Lego is claiming this Smart Play platform developed in house by the company's Creative Play Lab team in collaboration with Capgemini's [3]Cambridge Consultants "features more than 20 patented world-firsts within its technology." The heart of the system is the Smart Brick's custom-made chip, measuring smaller than a standard Lego stud. Other elements crammed into the eight-stud brick are an LED light array, accelerometers, light sensors, and sound sensor, and even a miniature speaker. The internal battery will supposedly work even after years of inactivity, and to avoid any need for cable access to the Smart Brick once it's built into a beloved creation, Lego has also added wireless charging. Indeed, Lego has made a charging pad that will power up several Smart Bricks simultaneously.
>
> That all-important brain chip is a 4.1-millimeter custom [4]mixed-signal ASIC chip running a bespoke Play Engine, which interprets motion, orientation, and magnetic fields. A copper coil assembly enables the brick's tag recognition, while a proprietary "Brick-to-Brick position system" uses these coils to sense distance, direction, and orientation between multiple Smart Bricks. Moreover, Lego claims this use of multiple Smart Bricks creates a "self-organizing network" that requires no setup, no app, no central hub, nor external controllers -- and so no screens. A Bluetooth-based "BrickNet" protocol shares the data between the Smart Bricks.
>
> Sounds are handled by a tiny analog synthesizer putting out real-time audio (thus minimizing memory load) via the brick's miniature speaker, which uses the brick's internal air spaces to amplify sound. As a result, the audio effects are apparently immediate and can be used to enhance play with real-time sound. Lego insists there are no prerecorded clips of lightsabers or other pieces of audio being used as a cheat. Just like the Smart Minifigs, the 2 x 2 studless tile tags trigger sounds, lights, or behaviors tied to where they are placed or how they are played with. They communicate with other components through near-field magnetic connections. Each tile has a unique digital ID, which is read by the brain brick, while the minifigures -- outwardly identical to standard minifigs -- carry their unique digital ID on an internal chip.
[1] https://www.lego.com/en-us/smart-play?CMP=AFC-AffiliateUS-TnL5HPStwNw-2116208-1606623-10&consent-modal=show
[2] https://www.wired.com/story/lego-smart-brick-new-digital-brain/
[3] https://www.cambridgeconsultants.com/
[4] https://en.wikipedia.org/wiki/Mixed-signal_integrated_circuit