24. case 23 micro:bit Crawlers

24.1. Introduction

Make a mechanical crawler.


24.2. Quick Start

Materials Required

Nezha expansion board × 1

micro:bit V2 × 1

360°servo × 1

Bricks × n

Bricks details


Connection Diagram

  • Connect the servo to S1 and the micro:bit to Nezha expansion board.


Bricks Build-up

  • Build it as below

../../_images/case_23_04.png ../../_images/case_23_05.png ../../_images/case_23_06.png ../../_images/case_23_07.png Link: https://youtu.be/iJO1XlIaWwE

24.3. MakeCode Programming

Step 1

Click “Advanced” in the MakeCode drawer to see more choices.


We need to add a package for programming. Click “Extensions” in the bottom of the drawer and search with “nezha” in the dialogue box to download it.


*Note: If you met a tip indicating that the codebase will be deleted due to incompatibility, you may continue as the tips say or build a new project in the menu.

Programme as the picture shows:



  • The crawlers move forward after powering on.