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The Micro:bit icon in the extension menu

The micro:bit is a Scratch Extension in Scratch 3.0, using the tiny computer designed by the BBC for use in schools. It is a small circuit board with lights, buttons, and tilt/movement sensors.

Connecting a micro:bit

The Micro:bit connection help screen

To connect one's micro:bit, they must go to the extensions menu. Then they have to click on the micro:bit extension. It will then look for micro:bits but if one is not found it will take the user to a screen which will tell them to install Scratch Link. It can be installed here. All one needs to do is follow the instructions.


The micro:bit extension has 10 blocks, 4 hat, 3 stack, 2 boolean and 1 reporter.[1] They are pictured and linked below:

  • When () button pressed.PNG
  • () button pressed..PNG
  • When moved.PNG
  • Display ().PNG
  • Display string.PNG
  • Clear display.PNG
  • When tilted.PNG
  • Tilted () ?.PNG
  • Tilt angle ().PNG
  • When pin () tested.PNG


The micro:bit has the following features:

  • Tilt/Movement Sensor: Changes the tilt values and triggers jumped and shaken events.
  • 5x5 Display: A 5x5 grid of lights that can show text and small images.
Selecting an image for the micro:bit display
  • Buttons: Can be pressed to trigger the button pressed hat.
  • Pins: Three pins let you connect other things.

Buying a micro:bit

Note Note: Ask a parent/guardian before buying a micro:bit.

See the micro:bit website



See Also