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What is LEGO Hub?

Published in LEGO Robotics 3 mins read

A LEGO Hub is a programmable electronic component that serves as the brains of interactive LEGO models, allowing them to be controlled by motors, sensors, and custom code.

Here's a breakdown of what a LEGO Hub is and what it does:

  • Core Function: The LEGO Hub acts as a central controller, receiving inputs from sensors (like distance, color, or tilt sensors), processing that information based on a pre-programmed code, and then sending commands to motors or other outputs to make the LEGO model perform specific actions.

  • Programmability: The Hub can be programmed using various platforms, including visual block-based coding environments (like LEGO Education SPIKE App or LEGO Powered Up App) and text-based languages (like Python with the LEGO Mindstorms Robot Inventor). This allows users to create complex behaviors and interactions for their LEGO creations.

  • Connectivity: LEGO Hubs typically connect to computers, tablets, or smartphones via Bluetooth for programming and control. This wireless connection provides flexibility in how the model is controlled and interacted with.

  • Types of Hubs: Different LEGO sets and systems utilize different types of hubs. Examples include:

    • LEGO Powered Up Hub (Control+ Hub): Commonly found in LEGO Technic sets, it often features more ports for connecting motors and sensors.
    • LEGO Technic Small Hub: A more compact hub designed for smaller, more streamlined models. It's often found in sets that require a less bulky control system.
    • LEGO Education SPIKE Prime Hub: Designed for educational purposes, often bundled with sets aimed at teaching coding and robotics concepts.
    • LEGO MINDSTORMS Robot Inventor Hub: A more advanced hub found in the Robot Inventor kit, featuring a matrix display, speaker, and gyroscope.
  • Key Features:

    • Multiple Ports: Hubs feature multiple ports for connecting motors, sensors, and other components.
    • Built-in Bluetooth: Allows wireless communication with programming devices.
    • Programmable Buttons: Some hubs have buttons that can be programmed to trigger specific actions.
    • Status Indicator Lights: LEDs indicate power status, connection status, and other relevant information.
    • Battery Powered: Typically powered by batteries (either rechargeable or standard) for portability.

In short, a LEGO Hub empowers builders to bring their creations to life by adding intelligence and interactivity. It transforms static LEGO models into dynamic robots and automated systems.

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