We got the speed of rotations of the motor in Radians per second. Let's calculate the value for the speed of the whole system. We calculate that the wheels are rotating with 375 radians per second. Which is impressive and quite fast for this system. From this speed, knowing the inertia mass we can calculate how much energy is the system accumulating.
So far we know how to make a turn in an arc, just like the real cars do.
Today we will see what other options our robots have for turning.
Бележки за построяването на Петминутен робот.
Най-добрият начин да пускате програмите си е от менюто с проекти и сега ще разгледаме това меню подробно.
There is no block for programming the Ultrasonic Sensor in the retail version of the LEGO Mindstorms EV3 software. In this video tutorial we will show you how you can download & import such blocks in order to use the 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.
Construct two legs for both sides of the robot. The task for this video is to attach this two legs on both sides and to build a system of gears and axles that power those legs.
We dispay the speed of rotation of the wheels on the brick screen. We use the math blocks to do a proper calculations from rotation to radians per second. Knowing the speed, the radiuses and the mass of the wheels we find energy in Joules accumulated in the construction.
We calculate the number of rotatios when a gear system is involved. The driving wheel will have to do a number of rotations for the driven wheel to rotate to a desired number of degrees. In our specific case when the driven gear wheel is rotate to about 90 degrees the legs will lift the robot.
Ще научим как да свързваме и да откачваме LEGO кабелите и в кои мотори трябва да свързваме двигателите.
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.
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.
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
As an exercise try to implement the calibration of the minimum and maximum values for a single sensor.
Има няколко неща, за които да внимавате, когато учениците работят с брика.
Implement the program for array initialization.
Follow the video tutorials for initializing arrays and implement the program.
Насърчаваме ви да изучавате софтуера сами.
Let's make a competition - there is a pole that the robot must turn around and return home.
We will take a look at the EV3 motors and will go into details about them
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.
