How Lego’s Smart Brick works

January 13, 2026

72 min episode · 2 min read

Sean Hollister,Casey Newton

Episode

72 min

Read time

2 min

AI-Generated Summary

Published Jan 14, 2026

Key Takeaways

✓Smart Brick Architecture: LEGO's smart brick is a universal two-by-four brick containing custom ASIC chip, color sensor, IMU sensors, and Bluetooth mesh networking that knows exact position and orientation of nearby bricks within centimeters in three-dimensional space.
✓NFC Programming System: The brick uses NFC tiles to load different programs rather than being device-specific, allowing one brick to function as multiple toys. Users tap tiles to transform functionality, though LEGO currently limits programming to predetermined experiences rather than user-created code.
✓Daily Note Productivity Method: Casey Newton's system combines morning journaling with live queries showing five random "blips" (developing ideas) daily in Capacities. This spaced repetition approach surfaces 800-plus saved articles and evolving thoughts, directly feeding his three weekly columns through consistent re-exposure.
✓Color Sensor Integration: The smart brick's color sensor reads standard LEGO pieces to trigger actions—red flaps activate firing sounds, blue tiles start refueling sequences. This allows traditional plastic bricks to interact with smart components without requiring additional NFC tags or purchases.
✓Claude Code Website Creation: Non-technical users can build functional websites with animations and light/dark modes in under one hour by typing natural language requests. The system generates HTML and CSS code instantly, enabling terminal-based queries across 800-plus archived articles within ten minutes.

What It Covers

The Vergecast examines LEGO's new smart brick technology from CES, featuring NFC-programmable functionality and mesh networking capabilities, plus productivity systems using Capacities for note-taking and Claude Code for website building.

Key Questions Answered

•Smart Brick Architecture: LEGO's smart brick is a universal two-by-four brick containing custom ASIC chip, color sensor, IMU sensors, and Bluetooth mesh networking that knows exact position and orientation of nearby bricks within centimeters in three-dimensional space.
•NFC Programming System: The brick uses NFC tiles to load different programs rather than being device-specific, allowing one brick to function as multiple toys. Users tap tiles to transform functionality, though LEGO currently limits programming to predetermined experiences rather than user-created code.
•Daily Note Productivity Method: Casey Newton's system combines morning journaling with live queries showing five random "blips" (developing ideas) daily in Capacities. This spaced repetition approach surfaces 800-plus saved articles and evolving thoughts, directly feeding his three weekly columns through consistent re-exposure.
•Color Sensor Integration: The smart brick's color sensor reads standard LEGO pieces to trigger actions—red flaps activate firing sounds, blue tiles start refueling sequences. This allows traditional plastic bricks to interact with smart components without requiring additional NFC tags or purchases.
•Claude Code Website Creation: Non-technical users can build functional websites with animations and light/dark modes in under one hour by typing natural language requests. The system generates HTML and CSS code instantly, enabling terminal-based queries across 800-plus archived articles within ten minutes.

Notable Moment

LEGO representatives acknowledged user demand for programmable smart bricks but stated they want to ensure hack resistance first. The real concern appears to be protecting revenue from NFC tile sales, similar to how users cloned LEGO Dimensions figurines using cheap Amazon tags.

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