The reason why you would want to watch this tutorial is because it demonstrates one of the most reliable ways to know where you are on the field and to accomplish missions successfully and this is aligning to a line. In the tutorial you will also see how a parallel program is developed and who parallel programs could be used in a meaningful way.
This video tutorial demonstrates again the consistency of the program for aligning to a line. We run it ten time. We the robot is always coming from the left it is always arriving at the same position. When it is coming from the right it is always arriving at the same position.
Instead of aligning forward as in the previous tutorial we felt there is a need to demonstrate how we could align backward when moving with the robot. This is not a rare case. The attachments of the robot are generally at the front of the robot and especially during FIRST LEGO League competitions the robot must move backward very often. It is helpful to have in your toolbox the ability to align backward with the robot.
When aligning backward the robot is still very consistent. It does not matter the direction in which we align. What you will learn from this tutorial is what is the consistency and reliability of the robot that you could expect.
This is one of the last tutorials in the LEGO Education SPIKE Prime programming for Competitions course and it demonstrates what we've all been waiting for - how to reach a mission model from base in a reliable and consistent way when the mission model is on the other end of the field. Naturally what we use are all the different concepts that we've learned in the course and the tutorial is more advanced than the other so if anything is not clear take a look also at the different tutorials an concepts in the course.
In this video tutorial we demonstrate a really important concept for FIRST LEGO League competitions - you position the robot on the field with depending on timers and rotations. The issue with moving the robot for 10 seconds and then stopping is that every time it is in a different location. Same for rotations. The wheels will slip, the battery will change, something will happen and the robot will not be in the same place every time. This is not consistent and reliable.
In this video tutorial we show how you can build robots that position on the field consistently and reliably by following and line and then aligning to a line. We also demonstrate the concept of "double align" which is quite powerful and even if there were some mistakes they will be handled.
Using everything that we've learned about LEGO Education SPIKE Prime competition programming we arrive at the final boss mission - how do we consistently reach a mission model at the other end of the field. Consistently. Every time. We use line following, motion sensor, counting of lines and border alignment. All the different concepts that we've looked at separately are now implemented together.
On of the most precise ways to position on the FIRST LEGO League and other competition fields is to follow and align and in this tutorial we demonstrate exactly this - how consistent and reliable this method is to reach specific mission models. In this way you know that every time you will be at the right place, which is great.
In this video tutorial we take a next step in programming reliable and consistent robots and this is to learn how to stop at a second intersection. We need this because most of the time when we want to reach a mission model on a robotics competition field, the model will be located away from us and we must use all kind of technique to reach it. In this tutorial - we stop at a second intersection.
In this 10 out of 10 tutorials we do 10 runs that demonstrated how consistent and reliable it is to stop at the second intersection. This is useful as it is one of the main ways to figure out how to position yourself on the field.
Every time we start the robot we want to start from the same place, not only in terms of where we are on the field but also in terms of how are the motors rotate. The motors have an internal sensor for detecting the rotation. Because of this they know how rotated they are. It is a very good practice to always reset the motors before we start a competition run especially at FIRST LEGO League or World Robot Olympiad competitions
In this program we demonstrate the difference between moving the robot fast and slow. After starting the program, you can press the right button to see the robot move fast, or you can press the left button to see the robot move slow. The program runs indefinitely, so you can keep testing the robot, without restarting the program. Make sure the robot has stopped moving before you press any button.
This program was intended for and tested on the Gazon robot
In this program we demonstrate the difference between moving the robot without acceleration and with acceleration. After starting the program, you can press the right button to see the robot move without acceleration, or you can press the left button to see the robot move with acceleration and deceleration. The program runs indefinitely, so you can keep testing the robot, without restarting the program. Make sure the robot has stopped moving before you press any button.
This program was intended for and tested on the Gazon robot
In this program we demonstrate how to program a SPIKE robot to use acceleration to improve movement accuracy.
This program was intended for and tested on the Gazon robot
In this program we demonstrate how to use the built-in motion sensor of the SPIKE brick to program the robot to move forward. We implemented a type of duck walking forward movement. To get a more smooth movement, you can try lowering the turn angles from 95.
This program was intended for and tested on the Gazon robot
In this program we demonstrate how to use the built-in motion sensor of the SPIKE brick to program the robot to turn 90 degrees. Due to the chance of overshooting the targeted angle, the robot is programmed to stop turning if it reaches or goes above 90 degrees. Since the robot, this program was made for, is a little tilted, the angle it is programmed to turn to is changed a little to compensate for the tilt.
This program was intended for and tested on the Gazon robot
In this program we demonstrate how to program a SPIKE robot to execute a faster and more accurate turn. You can press the right button to see how the robot executes a 90-degree turn with the aid of acceleration, to improve accuracy. After that, you can press the left button to see the robot turn fast with to acceleration, overshoot the target angle, and then return slowly back to it. That way, the robot reaches the target angle faster and more accurately. This method is useful for larger turns when time is limited. For smaller turns, it may cause the opposite effect. Since the robot, this program was made for, is a little tilted, the angle it is programmed to turn to is changed a little to compensate for the tilt.
This program was intended for and tested on the Gazon robot
In the SPIKE software, the acceleration block works only with predetermined rotations of the wheels. That limits us from using acceleration with the motion sensor, so in this program, we present an "MY BLOCK" that can simulate the acceleration block, but with the use of the motion sensor.
This program was intended for and tested on the Gazon robot
In this program we demonstrate how to program a SPIKE robot to align to а line with the aid of two color sensors. Make sure the line is big enough for the sensor to detect it. For this program to work, the sensors must be placed in front of the wheels.
This program was intended for and tested on the Gazon robot