Display block in the EV3-G software. Smiley faces, angry faces... all kinds of emotions
This is how to use the display block to show images with the EV3 software.
- #390
- 22 Apr 2017
This is how to use the display block to show images with the EV3 software.
Let's make a program that moves the robot forward and then backward.
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.
A note why we give the challenge at the start of the lesson.
What is allowed and what is not when building without instructions.
Each palette contains programming blocks that share common purpose. We will cover most of them
As an exercise try to implement the calibration of the minimum and maximum values for a single sensor.
There are some things to be careful about when your students work with the brick.
Implement the program for array initialization.
Follow the video tutorials for initializing arrays and implement the program.
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.
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
This video tutorial contains a detailed explanation on how we accomplish the FIRST LEGO League 2018-2019 Into Orbit mission called M05. EXTRACTION. On every robotics competition we have the challenge to collect, carry and return to base a number of objects. It is just in different way every time.
Why we will never use seconds in our lessons.
Let us do a quick recap of the whole lifting mission and its solution
We will demonstrate with a robot what the acceleration is and the effects of high and low acceleration.
This video tutorial contains a detailed explanation on how we accomplish the FIRST LEGO League 2018-2019 Into Orbit mission called M14. METEOROID DEFLECTION. The mission is a simple throw of a ball. But of course the ball should reach a specific mission model and arrive at a specific place. And that's always challenging.
Every turn is a circular motion and we will review the three types of turns from this point of view.
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.
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.
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
We will share the idea behind that challenge and how to conduct the challenge in a classroom.