

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.
This LEGO Mindstorms robot is strange. Can you guess what is strange about it?... The motors are placed in a reverse direction. One of the motors is facing "forward" while the other one is facing "backwards". This means that if you make the robot move forward with a Tank Block in the EV3-G software it will just rotate. To make the robot move forward, you will have to make one of the motors rotate forward and the other one - rotate backwards.
The goal of this robot is to teach students that motors could be placed in many different ways. It is not always the case that the two motors face the same direction. Also, it is quite fun.
How important is it to have predictable behavior in your classes.
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.