Introducing to programming LEGO® MINDSTORMS® EV3

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Looped Decision

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Check Your Understanding:

Question 1

What happens when you place a Switch inside a Loop?

Choix attendu

The robot runs in a circle until told to stop.
The robot makes a decision once, then repeats the result many times.
The robot makes a decision many times, taking whatever action is appropriate each time.
You cannot place a Switch inside a Loop.

Question 2

When a Switch is placed inside a Loop...

Choix attendu

Both the Switch and Loop operate normally, but the arrangement is useful.
The software interprets the Switch+Loop structure as a special construct.

Maze Runner

The simple behavior you wrote in the video can be used as a very simple maze solver!

Build a maze for the robot, made up of square floor tiles.

If you don't have floor tiles, use 30 cm squares.

Adjust your Forward movement to go one tile per movement, rather than 3 rotations.

What happens?

Choix attendu

The robot will perform its move-or-turn behavior only in the first tile.
The robot will perform its move-or-turn behavior in each tile, eventually solving many simple maze configurations.

Correction Recommencer

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Basics
Movement
Sensors
Decisions
- Loops
- Switches
  - Robot Config
  - Exercice : Move If Clear
  - Exercice : Mini Challenge
  - Exercice : Looped Decision
  - Exercice : Mini Challenge
- SwitchLoops
- Line follower

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