Video tutorials -
Following lines, detecting colors, responding to light. It is still far from "seeing", but the LEGO Mindstorms EV3 & NXT sensors could be very useful when used properly.
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Gapped and Crossed Line Following with LEGO Mindstorms. Part 1. Challenge. Use of State Machines
We start a course for following a line with crosses and gaps. This is a challenge that one of the users at FLLCasts.com was trying to accomplish and asked us for advice. We present the whole challenge to you step-by-step. But first, let's also see the whole run of the line following algorithm. With this course, we also do an introduction of using State Machine as a programming pattern.
- #204
- 06 Jan 2016
EV3 basics course. Color Sensor. Detect line (part 1)
Very simple and basic introduction to the color sensor in the LEGO Mindstorms EV3 set. The first program is to stop at a line. Then we can move from stoping at line to counting lines and even more complex tasks.
- #147
- 19 Oct 2015
EV3 basics course. Color Sensor at a competition (part 7)
In a competition environment like the FIRST LEGO League (FLL) or World Robotics Olympiad (WRO) the color sensor is more than useful. It makes positioning on the field quite easy and precise.
- #153
- 29 Oct 2015
Gapped & Crossed Line Following. Part 2. Strategy
Looking at the field we must first think of a strategy of solving this line following problem. There are rules that the robot must follow and these rules should be programmed in the robot.
- #205
- 13 Jan 2016
EV3 basics course. Color Sensor. Stop on third line. Hack (part 2)
Counting lines and stopping on the third is the subject of this video. It is important to know how to do this in order to conduct more than one experiment in STEM classes (if we consider that each line is an experiment)
- #148
- 23 Oct 2015
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
How to use Hi Technic Color Sensor in EV3 Software
Based on a request from Abdulah we decided to build a tutorial on how to use Hi Technic Color Sensor and EV3-G Software. There is a special block imported in the software that helps you use the sensor.
- #98
- 26 Jul 2015
WRO Junior-High 2015. Collecting single treasure. Full run. Part 5
In this episode we do a full run of the mission for collecting a single treasure before going into explanation on how we have programmed the robot.
- #228
- 16 Oct 2016
Following a line with two Hi Technic Color Sensors in EV3
As an extension to the previous video we talk about the Hi Technic Color Sensor again.
- #99
- 02 Aug 2015
How to use the Light/Color Sensors with the Catapult built from EV3/NXT
Vision is still one of the very few fields where a human being could outsmart a computer. Still. Colour/Light sensors are the cornerstones of implementing a smart LEGO Mindstorms robot that could at least partially do "vision". In this video tutorial, we are using the robotics sensor to detect loading and unloading of the catapult.
- #82
- 05 Apr 2015
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