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LEGO BOOST

The LEGO BOOST extension controls a LEGO BOOST Move Hub, including its motors, color sensor, and tilt sensing. It is built in and compatible with Scratch.

Load it from Add Extension and choose LEGO BOOST.

Requirements​

BOOST connects over Bluetooth, so you need:

  • A computer with Bluetooth and a supported browser.
  • Scratch Link running to bridge Bluetooth to the browser.
  • The BOOST Move Hub paired with your computer.

Adding the extension opens a connection window to pair the hub.

Blocks​

turn motor [motor] for [duration] seconds​

Runs a motor for a set time.

turn motor [motor] for [rotation] rotations​

Runs a motor for a number of rotations.

turn motor [motor] on / turn motor [motor] off​

Starts or stops a motor.

set motor [motor] speed to [power] %​

Sets motor speed from 0 to 100 percent.

set motor [motor] direction [direction]​

Sets a motor to run this way, that way, or reverse.

motor [motor] position​

A reporter for a motor's rotation position.

when [color] brick seen / seeing [color] brick?​

React to the color sensor detecting a colored brick, as a hat block or a boolean.

when tilted [direction] / tilt angle [direction]​

React to tilting the hub, or read its tilt angle.

set light color to [hue]​

Sets the color of the hub's built-in light.

See also​