From sequential programing to state machines

Graphic algorithm to follow a line with 2 color sensors

In this unit, we will explore some common algorithms for line following in a very systematic way, starting with well known “sequential” approaches, and then contrasting these with a “state machine” approach. We will see in detail how a four-step simple line follower with two Light (or Color) sensors works and how to systematize the […]

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Inside a two-step simple line follower

Two-step simple line following algorithm

In this unit, we will use the datalogging tools available in the EV3 Software to study the internal operation of a two-step simple line follower with one Light sensor. It is a very simple but powerful example that can help students to understand and to correctly program other situations. One of the most important functions […]

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Exploring thresholds

EV3 robot with 1 color sensor and black line

This unit introduces an extremely simple exercise that allows students to think more deeply about the concept of a threshold and how to use it to make a robot react to its environment. It is based on my Teachers Introduction Course to LEGO® MINDSTORMS NXT & EV3 at BOGATECH’s website. Here the programing examples are […]

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Virtual Explosion!

Example of a video image display and its video streaming control program

The Second World War generated a big crisis in all aspects: economic, social, human values, etc., and artists were the first to react. Art needed a change and the “action painting” or “happening” was used to express the artist’s feelings, starting from zero and literally attacking traditional painting that embodied conventional art. Jackson Pollock was […]

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