VinciBot Python #08: Global vs Local Variables & a Growing Triangle Robot Drawing

In this lesson, we use VinciBot to draw a triangle whose side length grows each time it moves (start at 3 cm, then +2 cm each edge). Along the way, you’ll learn:

What variables are and how to initialize/update them

The difference between global and local variables (and when to use global)

How decorators trigger code with @event.button_triangle_pressed

Using for loops, increment steps, move_position, and move_angle to control the robot

If you’ve used Scratch/block coding, you’ll see the parallels in Python—same ideas, just code! Try it with your VinciBot and tweak the growth step to make your own patterns.

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