[$] Fun with LEDs and CircuitPython

Nina Zakharenko has been programming for a long time; when she was youngshe thought that "the idea that I could trick computers into doing what Itell them was pretty awesome". But as she joined the workforce, heropportunities for "creative coding" faded away; she regained some of thatworking with open source, but tinkering with hardware is what let hercreativity "truly explode". It has taken her years to get back what shelearned long ago, she said, and her keynote at PyCon 2019 was meant to showattendees the kinds of things can be built with Python-starting withsomething that attendees would find in their swag bag.