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Technology. Robotics. Irish Mini Sumo Robot Competition Explained. Educational Aims

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Irish Mini Sumo Robot Competition Explained

  • Educational Aims

  • To develop student interest and expertise in the area of Applied Control through building autonomous Mini Sumo Robots and subsequently competing them against each other in both school based and national Mini Sumo Robot Tournaments.

  • Students will develop skills in the following areas:

    • Design

    • Material Processing

    • Mechanisms

    • Robotics

    • PIC Control

    • Mathematics

    • GENIE PIC Programming Software

  • Competition Overview

What is Robot Sumo?

Robot-Sumo is a sport in which two robots attempt to push each other out of a circle (in a similar fashion to the sport of Sumo). The robots used in this competition are often called Sumobots.

The engineering challenges are for the robot to find its opponent (usually accomplished with infrared or ultra-sonic sensors) and to push it out of the flat arena. A robot should also avoid leaving the arena, usually by means of a sensor that detects the edge.

The most common "weapon" used in a Sumobot competition is an angled blade at the front of the robot, usually tilted at about a 45 degree angle towards the back of the robot. This blade may have an adjustable height for different tactics.

Sumo Robot Classes

There are four main classes of Sumo Robot.

The Irish Schools Competition is currently only for the Mini Sumo Robot.

Mini Sumo Robot Competition Ring

Schools should make a similar ring from sprayed MDF etc to test their Mini Sumo Robots.

Irish Mini Sumo Robot Competition

A mini-sumo robot must be able to do the following:

  • Stay in the ring: Survive

  • Look for the opponent: Hunt

  • Aim at the opponent: Target

  • Push the opponent: Attack

Mini Sumo Robot Examples

This is a SolidWorks render of a sample Mini Sumo Robot.

Instructions for the manufacture of this robot are available in folder 3.Sample Mini Sumo Robot Manufacture

Rear view of the SolidWorks render.

Required Components for Irish Mini Sumo Robot Competition

  • In order to minimise costs for and ensure fairness and equality during competition, specifications for the following main components have been created:

    • Motors

    • PIC Control Board

    • Edge Sensing LDR

    • Infra Red Distance Sensor

Specified Motors

This economy motorised gearbox is fitted with a 3 to 12V DC motor.

The output shaft is 5.5mm diameter and 9mm long with 2 flats.

It is available from Rapid Electronics.

Click on the link below for details.

Specified Motors

A robust worm-drive gearbox powered by an MM28 motor (included).

Most suitable for applications where an easy to fit, high torque output is required.

Ideal for student based projects including robots and buggies

Click on the link below for details.

PIC Control Board

The GENIE E18 Motor Board must be used to control the Mini Sumo Robot.

A kit containing all necessary components to build this board can be purchased at:

The required GENIE Design studio software can be downloaded free from the GENIE website at:

The folder labelled 4. Using GENIE Design Studio to Program a Mini Sumo Robot contains information on using the software along with example videos of student Mini Sumo Robots in action.

GENIE E18 Motor Board

Edge Sensing LDRs

A compact low cost cadmium sulphide light dependent resistor (LDR) housed in a small package.

Click on the link below for details of this or similar LDRs:

Infra Red Distance Sensor

The GP2Y0A21 Sharp distance sensor is a great way to add obstacle avoidance or motion sensing to your robot or any other project.

With built in emitter and receivers, a detection range of 10 to 80cm and an analogue voltage indicating the distance, this sensor is very easy to use.

Click on the link below for details.

  • If any school is interested in entering the 2012 Inaugural Irish Mini Sumo Robot Tournament which will be held in January 2012 please contact:

    • Declan Askin

    • St. Gerald’s College

    • Castlebar

    • Co. Mayo

    • 087 4181690



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