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We’re using a micro:bit along with a LEGO-friendly Bit Board to control the two servo motors that will allow WALL-E to be able to traverse the dangerous terrain of your living room floor.

For the code we’ll be using Microsoft MakeCode, which is a block-based code editor that is easy to use. You’ll be able to load our code and use it, as well as edit it and customized it to make it your own. This is a great way to experiment by making adjustments and seeing how they change how WALL-E moves.

The Bit Board is a new (as of 2020) part of the Crazy Circuits system just for the micro:bit that consists of a large number of components that are LEGO compatible and allow you to build circuits on top of LEGO baseplates and parts. The Bit Board is compatible with V2 and previous versions of the micro:bit as well as the Adafruit Clue development board.

If you like our projects and want to see more of what we get up to each week please follow us on Instagram, Twitter, Facebook, and YouTube.

Brown Dog Gadgets does in fact sell kits and supplies, but you don’t need to buy anything from us to make this project. Though if you do it does help support us in creating new projects and teacher resources.

Electronic Parts:

1 x Crazy Circuits Bit Board Kit
1 x micro:bit
2 x LEGO Compatible Continuous Rotation 360 Degree Servo
LEGO Parts:

We used a variety of parts but the world of LEGO is vast, and you may find other parts that work just as well. The important things you’ll need to do is have a way to mount the servos on the bottom and connect to the tracks. We have provided links to each part on BrickOwl but you can find them anywhere LEGO or LEGO-compatible parts are sold.

4 x LEGO Bracket 1 x 2 - 2 x 2 (21712 / 44728)
2 x LEGO Axle Connector (Smooth with ‘x’ Hole) (59443)
2 x LEGO Axle 5 with End Stop (15462)
2 x LEGO Technic Bush 1/2 with Teeth Type 1 (4265)
1 x LEGO Brick 2 x 2 (3003 / 6223)”

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