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A Lego Mindstorms NXT Autonomous Quad Rotacaster Holonomic Platform Omni-Bot

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Published on Sep 8, 2010

This Autonomous Quad Drive Omni-Bot fitted is with Rotacasters Omni-wheels and uses 4x Ultrasonic Sensors to aid in navigation. It's based on my previous remote control Quad-Drive Rotacaster Omni-Bot with the addition of the Ultrasonic Sensors.

The main challenge is to use all 4 Ultrasonic Sensors without them interfering with each other, resulting in non-valid measurement readings for distance values to objects. If you wish to use Multiple Ultrasonic Sensors on your NXT Robot, you need to program them so only ONE Sensor is taking a measurement at any given time.

Complete Robot details are available at: www.rjmcnamara.com.

Many thanks to Mr. Peter McKinnon from Rotacaster for having faith in me to take on the challenges involved with developing what is an Industrial Rotacaster Omni-wheel, into a product suitable for use with Lego Mindstorms & Robotics Platforms.

Complete Rotacaster Omni-wheel details are available at : www.rotacaster.com.au

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