Content for FLL
Сумо състезателен робот от ЛЕГО Mindstorms EV3
Това е пример за робот за състезанието по Сумо роботика и по-специално за RoboteX challenge. Повечето състезания по сумо за роботи имат изисквания за размера на робота, като за този робот изискването е 15 см х 15 см.
Състезанията по сумо са много забавни и интересни, тъй като целта е да се избута противниковия робот извън ринга.
- #345
- 26 Sep 2017
How to calibrate more than one LEGO Mindstorms EV3 Light/Color sensors at a time
Would you like to resolve all the problems with the light/color sensors that you have? And to make all of them work in a predictable, stable way even when using more than one MINDSTORMS colour sensors.
When using Color sensors it is important to calibrate them depending on the light conditions in your venue. In this way, the calibrated sensor will show values between 0 and 100 independent of the light conditions. But using the default EV3 colour calibration available in the colour sensor block could lead to unpredicted problems that are difficult to track and resolved especially when used with multiple Color sensors. So in this series of tutorial we implement the calibration ourselves discussing the principles of colour sensor calibration.
- #632
- 04 Oct 2017
Initialize an array for Advanced Light/Color sensors calibration
"Array initialization" is the first step in every program that involves Arrays. This applies to most programming languages and for EV3-G it is a must.
In this tutorial, we would show you how to initialize the array and how to extract this logic in a new block
- #633
- 04 Oct 2017
Advanced Light/Color sensors calibration for a minimum value for a single sensor
In this tutorial, we would implement a program that finds the minimum and maximum value detected by the sensor and stores this two values in an array.
- #634
- 04 Oct 2017
Advanced Light/Color sensors calibration for more than one sensor
In the course section for Advance Sensor Calibration we previously showed you how to find the minimum and maximum value for a single LEGO Mindstorms Color Sensor and to store this value in an array. The program was implemented with the EV3-G software. In this tutorial we are going to find the Min and Max for all the four sensors and to store all the 8 values in an array.
- #635
- 04 Oct 2017
Hardcode read of calibrated value for Light/Color LEGO Mindstorms sensors
Following the Advance Sensor Calibration course section, we found the min and max values detected by each sensor. Now it is time for the real deal of the calibration. Detect the current value from the sensor and find what is the percentage of this value for the range between min and max.
- #636
- 04 Oct 2017
Building an example program using calibrated value for Light/Color EV3 Sensor
Many times we just upload blocks and leave it up to you to use it. In this tutorial, I would like to show you how to use the implemented blocks. How to import them into the EV3-G software. How to see them in the palette. How to drag and drop them to build a working program.
- #637
- 04 Oct 2017
Task - Initialize an array at the beginning of the Advanced Calibration program
Implement the program for array initialization.
Follow the video tutorials for initializing arrays and implement the program.
- #638
- 04 Oct 2017
Task - Calibrate a single sensor with the Advanced Light/Color technique
As an exercise try to implement the calibration of the minimum and maximum values for a single sensor.
- #639
- 04 Oct 2017
Task - Calibrate more than one sensor with the Advanced Calibration technique
Following the previous tutorials from the course, implement the calibration of the minimum and maximum values.
- #640
- 04 Oct 2017
Task - import/implement our blocks and stop at black line
Implement a program for stopping at a black line with the blocks containing the implementation details for the InitArray, Calibration and Getting the calibrated result.
- #641
- 04 Oct 2017
Advanced Light/Color sensors calibration for a maximum value for a single sensor
Following the Advance Light/Color sensors calibration for a minimum value for a single sensor tutorial, in this one, we continue with finding the maximum value detected by a sensor and storing this value in an array.
- #642
- 04 Oct 2017
How to display on the screen the calibrated minimum and maximum values from the Array
A common question is how to display arrays on the LEGO Mindstorms EV3 brick screen. Displaying values from an array is not different from any other display operation. In this tutorial, we would look at displaying two specific values. The minimum and the maximum for a specific sensor from the Advance Calibration Course Section
- #643
- 04 Oct 2017
How to display on the screen all the values from an array, using an "Iteration"
In this tutorial, we show you how to display all the values from an EV3-G array on the EV3 brick display. We are using an array Read Operation along with a loop. We are also detecting the loop counter and using it as an index to an array. It's basically the only viable way to do it. The process is commonly referred to as - "Iteration over an array" (although we still do not have an iterator in the programming language, we promise that one day we would do the super advance videos on "iteration" using the LEGO MINDSTORMS robots")
- #644
- 04 Oct 2017
Extracting the logic for finding minimum an maximum into a new block
One of the smartest things you could do in any software program is to extract logic in small reusable, simple, understandable units. In EV3-G these are called Blocks and we are going to extract the logic for finding a minimum and maximum for each of the sensors in a new block.
- #645
- 04 Oct 2017
Calculated read of calibrated value for Light/Color LEGO Mindstorms sensors
Following the Advanced Sensor Calibration course section, it is time to extract the logic for getting a calibrated value into a new block. This block will have an input and on this input, we give the port number. The block will return the calibrated value for this port number. We've built all the other blocks only because of this almost final video here.
- #646
- 04 Oct 2017
Implementing the final program for moving straight with the Gyro Sensor
This video tutorial contains the final 2 programs for moving straight with a LEGO Mindstorms EV3 robot. The first program is for proportional compensation that just keeps the robot orientation straight, while the second program is for Integral compensation that returns the robot to the straight line when the robot makes a mistake.
- #661
- 10 Jan 2018
Blocks Package for Advanced Calibration of LEGO Mindstorms EV3 Color/Light sensors
This package contains the three blocks used in the advanced calibration section of the FLL course.
The blocks contained are:
- InitiArray block
- CalibrateMinMax
- GetCalibrateValue
- #cwqkuo
- 04 Oct 2017
Example program for using the Advanced Calibration Blocks Package
This is the example program using the blocks available at Blocks Package for Advance Calibration of LEGO Mindstorms EV3 Color/Light sensors. The program makes the robot find the minimum and maximum values and to calibrate the current sensor value depending to the min and max.
- #qo8e5r
- 04 Oct 2017
How to play football with LEGO Mindstorms Robots. Introduction
Football with robots could be quite fun. Football with LEGO Mindstorms robots is one of the popular categories for competitions with LEGO Mindstorms Robots.
- #945
- 20 Sep 2018