LEGO Mindstorms Tutorials & HOWTO

What happens when a Robot has different size wheels?

This article is another spin-off of the Differential-drive robot calibration. If you remember the article at the end you found that wheels are most of the times of different sizes with differences of around 0.01% but that are big enough to affect movement over 1 meter. So… What happens when you move one meter straight …

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HOWTO Calibrate a differential robot: UMBMark Explained

This article is just a follow-up of drawing squares with leJOS where the problem of calibrating correctly your differential robot appeared. So, if you recall our squares drawing robot, we needed to travel around the four legs of a square turning 90 degrees on each corner so that we ended in the initial position using …

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HOWTO Install leJOS 0.8.1 on LEGO Mindstorms EV3

LeJOS is a programming environment to program your LEGO Mindstorms robot using Java. Yes, Java. Yes, that means real variables, arrays, bluetooth, TCP/IP, files, etc… Stop drooling and read with me how to install it on the EV3 brick. You can watch the videotutorial about how to install LeJOS in the EV3 brick Install Java …

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three-wheels-holonomic-robot

HOWTO Build your own 3-Wheels Holonomic Robot using LEGO

A in-depth tutorial about how to create your own three wheels Holonomic Robot using LEGO Mindstorms EV3 and a bit of Maths knowledge. An holonomic robot is a robot that can move on any direction and even rotate over itself while moving. Do you want to create a holonomic robot? Well, let’s me explain what …

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