A MicroPython pyboard is connected to the internet for you to play with! Try the example scripts to flash LEDs, turn motors, produce sine-waves and make animations.
There is only one pyboard and many people may be using this page at the same time. Your code will wait in a queue until the pyboard is available and then it will be executed. In the meantime you can watch what other people are doing.
import pybpyb.LED(1).on()