Micro:Bit crab robot walking

Crawling Crab

Overview

Tools:

  • Ruler
  • Scissors
  • Screwdriver
  • Nuts and bolts
  • Rubber bands

Electronics options:

  • BBC Micro:Bit
  • Adapter to connect and power servo motors
  • 1 x 180 deg standard servo (3,3V compatible)
  • Calliope mini
  • Jumper wires
  • 1 x 180 deg standard servo (3,3V compatible)
  • Arduino compatible board
  • Jumper wires
  • 1 x 180 deg standard servo

Building time:

30 min

Difficulty:

Beginner

Project info

Crawling Crab is a minimal walking robot concept, it is obvious you cannot control its movement but it can be a funny project when you code some user interaction like running away when the user youches the crab o get close to it.

Building manual

Design plan

How to read robot plans:

  1. BLACK LINES – cut this line first
  2. RED LINES – detailed shapes cut after the black lines
  3. BLUE DASHED LINES – bending lines traced with scissors

Code