Artful Bytes

A blog about building and programming hardware.

Nsumo

A sumobot in the mini class (500g 10x10cm).

Background

A popular sports in robotics is robot-sumo and similar to regular sumo wrestling, there are two competitors trying to push each other out of a ring (dohyo), but instead of hefty men from Asia, the two competitors are robots called sumobots.

There are many classes you can compete in, among the most popular are:

  • Standard: 20cm x 20cm x 3kg
  • Mini: 10cm x 10cm x 500g
  • Micro: 5cm x 5cm x 100g

Besides giving rise to a competition, a sumobot is a great project for learning about robotics and embedded systems development. It involves the typical parts of a robot (microcontroller, sensors, motors, and battery), and on top of that, you must implement an autonomous driving strategy.

Features

  • Mini-class (10cm x 10cm x 500g)
  • Microcontroller MSP430
  • Bare-metal C
  • Custom PCB
  • Four motors/wheels with skid-steering
  • 3D-printed chassis

The hardware design and software are available at GitHub.

Images