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Plan First, Then Drive

Guide a robot through a maze.

Step 1 of 3

What you'll learn in this level

  • How a robot plans a route before it sets off
  • Why the order of the commands decides everything
  • Why fewer commands are better

The Way to the Goal

Robot navigation is how robots move from one place to another while avoiding obstacles.

It's like giving a robot a map and instructions to follow so it can reach its destination safely and efficiently.

How a Robot Finds Its Way

  1. Planning the Route

    A robot plans a route from its own spot to the goal. While it does that, it looks at what stands around it.

  2. Giving Commands

    A robot follows fixed commands. For example: drive forward, turn left, stop. That is how it drives its planned route.

  3. Going Around Obstacles

    Sensors show the robot what is in the way. Then it changes its route. That way it never bumps into anything.

  4. In Real Life

    This is inside self-driving cars and warehouse robots. Vacuum robots and Mars rovers find their way like this too.

Here you program a robot. It has to drive through a grid and reach the goal.

Guess first, then experiment

You give the robot your whole command list and press start. Halfway through you see it: one command was wrong. What does it do?