Vincibot Python Tutorial: LED Matrix Countdown with a for Loop

In this lesson, we program the Vincibot LED matrix to show a 10→1 countdown and then display “start”.
You’ll learn:
• Numbers vs strings on output (why quotes matter)
• Waiting between updates with time.sleep(1)
• Importing modules: import time
• Building a countdown using for + range(start, stop, step)
• Proper indentation for loop bodies
• Saving main.py and running it on Vincibot

Perfect for beginners who know a bit of block coding or basic Python.