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Physics in LEGO Mindstorms: Energy Accumulation and Conservation. Part 3 - angular velocity
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.
- #116
- 22 Nov 2015
EV3 Phi. Turning. Intro to module and doing a competition
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.
- #414
- 18 Apr 2017
EV3 brick menu - my projects
The most universal way to start your programs is from My Projects menu and we will cover details about that menu in the EV3 Brick.
- #353
- 04 Feb 2017
How to use an Ultrasonic Sensor in EV3 retail version
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.
- #46
- 06 Nov 2013
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
Improving FLL Robot Game. How to calculate gear ratio in complex systems
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.
- #468
- 06 Apr 2017
Improving FLL Robot Game. Extend axles to reach from the motor to the wheels
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.
- #460
- 28 Mar 2017
Physics in LEGO Mindstorms: Energy Accumulation and Conservation. Part 4 - experiment for energy in Joules
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.
- #117
- 29 Nov 2015
Using cables to connect the motors to the brick
We will learn how to connect and disconnect LEGO cables and on which ports exactly to connect the motors.
- #355
- 04 Feb 2017
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
Every program is comprised of a series of instructions
Let's make a program that moves the robot forward and then backward.
- #378
- 04 Feb 2017
Task: make the robot greet a stranger and leave
Explanation and demonstration of the big task for the lesson.
- #394
- 26 Apr 2017
Improving FLL Robot Game. Teacher's Note. Correct solution on calculating gears.
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.
- #474
- 11 Apr 2017
Teacher's Notes: Intro Yo-Yo challenge
A note why we give the challenge at the start of the lesson.
- #374
- 04 Feb 2017
Teacher's Note: Add a touch sensor without instructions
What is allowed and what is not when building without instructions.
- #432
- 03 May 2017
EV3 Phi. The different palettes in LEGO Mindstorms EV3-G software
Each palette contains programming blocks that share common purpose. We will cover most of them
- #398
- 01 May 2017
Improving FLL Robot Game. Task for extending axles.
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.
- #461
- 30 Mar 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
Teacher Notes: Introduction to EV3 Controller
There are some things to be careful about when your students work with the brick.
- #351
- 24 Jan 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: Try by yourself to make the robot make a sound
We encourage you to explore the software on your own.
- #391
- 23 Apr 2017
EV3 Phi. Turning around a pole - introduction to the module
Let's make a competition - there is a pole that the robot must turn around and return home.
- #381
- 17 Mar 2017
Improving FLL Robot Game. Task. 9 out of 10 repeatable operations
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.
- #478
- 14 Apr 2017
Improving FLL Robot Game. Losses in mechanical systems and especially in gears
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.
- #472
- 09 Apr 2017