LEGO MINDSTORMS EV3

There are constructions, especially on our platform, that you could build partially and then experiment with different ways to complete them. This is a very good exercise for creativity. It is sometimes difficult to build a whole robot from scratch, but finishing the robot with a few wheels and attachments is doable. ​​​​​​

How do you detect a cross-section and move from following the main line to following the crossing line. In this series of video tutorials we are starting with a very simple solution that could work in most of the cases. It is especially useful for the FIRST LEGO League Trash Trek competition where there is such a section.

The gyro sensor indicates the angle of the turn the robot made. We certainly can use this to create a robot that could perfectly follow a direction, right? Now we'll show you the easiest way to do it.

When you hear the task “program the robot to follow a black line,” you’ll most likely imagine a program that works like this:

• If the color sensor detects black (meaning the robot is over the line), the robot moves forward.
• If the color sensor detects a different color (meaning the robot is not over the line), the robot turns toward the line.

Next important state is Turn Right with our robot. This happens when we detect a line on the right. 

Tasks for the Gyro sensor that you can use in STEM classes, while preparing for a competition or just to explore how the sensor works.

This tutorial is about how to follow a wall with an ultrasonic sensor. The example is with a border from a FIRST LEGO League (FLL) competition, but could also easily be applied to other competitions and problems.