Блокче за дисплей в EV3-G софтуера. Усмихнати личица, сърдити личица… всякакви емоции
Как да използваме блокчето за дисплея, за да показваме изображения с EV3-G софтуера.
- #390
- 22 Apr 2017
Как да използваме блокчето за дисплея, за да показваме изображения с EV3-G софтуера.
Нека направим програма, при която има движение напред и назад.
Обяснение и демонстрация на голямата задача за това занятие.
This is a teacher's note about the math behind calculating gear ratios with for our lifting attachment. It math model we build in previous tutorials is not exactly correct and here is the explanation why.
Какво е разрешено и какво не при построяване на робота без инструкции.
Each palette contains programming blocks that share common purpose. We will cover most of them
The important task before the solution. If you haven't done it already, then attach a new axle at the front of the robot and extend the construction with gear wheels and axles to reach the two legs at the two sides of the robot.
Има няколко неща, за които да внимавате, когато учениците работят с брика.
Насърчаваме ви да изучавате софтуера сами.
Let's make a competition - there is a pole that the robot must turn around and return home.
The task in this tutorial is to execute the program 10 times and to do it yourself. If you have your attachment then use it. If you have our attachment then use it. But execute the program 10 times and make sure that it works.
Sometimes the answer that you get by calculating seems not to be right. Is it the calculation that is wrong. Probably it is not the calculation, but something is happening with the robot.
Robots could do chores for us and they must consider the load of the cargo or the robot could be damaged.
Sometimes a good teacher needs a few tricks in his sleeve, so that he can surprise and entertain his students.
We will take a look at the EV3 motors and will go into details about them
Our next robot is called CastorBot, because of the castor ball.
Why we will never use seconds in our lessons.
Let us do a quick recap of the whole lifting mission and its solution
В това занятие ще програмираме робота да показва емоции!
We will demonstrate with a robot what the acceleration is and the effects of high and low acceleration.
Every turn is a circular motion and we will review the three types of turns from this point of view.
Време да приложим всичко научено досега на практика. Да направим робот шпионин!
What should you as a teacher know when the students are trying to achieve a program and robot attachment that could reproduce their behaviour 9 out of 10 times.
If you've done the calculation following the previous tutorials you would arrive at a result of 18.75 rotations. But this is not the correct answer. The calculation is wrong, because the math model that we've built, although kind of obvious, is not correct. When experimenting the correct number of rotations would be 37.5. This is a large difference. Two times larger. Exactly two times large. Something should be happening here - and this thing is "planetary mechanism"
In this video we discuss the durability of the construction of LEGO robots and how do we make them more durable.