

Teacher's Note: Solutions for the tasks for the yacht robot
TL; DR: The goal of today's task is for the yacht to follow a line (GPS), to detect when it bumps at something and to stop.
- #1261
- 29 Apr 2019
TL; DR: The goal of today's task is for the yacht to follow a line (GPS), to detect when it bumps at something and to stop.
Yolanda comes from the novel "Yolanda, the Black Corsair's Daughter" by Emilio Salgari.
The robot resembles a sailship with two masts. The mast in the back is connected to a medium motor, which allows it to rotate with some limits. The mast also has a gyro sensor in the back. These are placed so that the gyro sensor detects which way "the wind is blowing" and moves the sails that way. The second mast is connected to the first one so that it moves accordingly. The robot also uses two large motors to move.
Sometimes we want our robots to have some kind of random behavior. In such cases we need to generate some random values. Now we will take a look at how we can achieve that by using the EV3 programming language.
How important is it to have predictable behavior in your classes.
Today we are going to construct robots which will play the telephone game. You all know how to play this game. The first player thinks of a word and then whispers it to the next one and so on. By the end of the line the word has become completely different and everybody has a lot of fun. How are we going to do that with robots? Instead of words, our robots will use colors and instead of ears – color sensors. The first robot shows a color to the next one which shows the same color, or at least tries to do so, to the next one and so on. Pay attention that robots should stand still although they are equipped with wheels.
This video tutorial shows how the LEGO Mindstorms EV3 Ninja Motorcycle robot works. It's a nice demonstration with the robot moving forward, backward, and slightly to the left and right.
The name comes from the worlds most expensive yacht, History Supreme, purchased for around 5 billion US dollars form an anonymous Malaysian buyer.
Robotics Supreme is a robot made to resemble a yacht. For that purpose it is made to look very long and its front comes to one point. It uses two large motors with tyres to move. On the front it also has a color sensor, placed so the robot can follow a line. On the back it has a Gyro sensor, so that it can turn correctly.