CircuitPython: Digital Inputs and Outputs with Tony D!

Live stream to http://twitch.tv/adafruit showing how to use digital I/O (inputs and outputs) with CircuitPython! Learn what a digital input and output is, and how to control LEDs and read buttons with them.

Links mentioned in the video:
- CircuitPython on ChromeOS video: https://www.youtube.com/watch?v=B-PfKv7DCbc
- CircuitPython on Windows video: https://www.youtube.com/watch?v=FD5lkDypVSo
- CircuitPython on mac OS video: https://www.youtube.com/watch?v=2BwV9WYFo0I
- Gemma M0: https://www.adafruit.com/product/3501
- Circuit Playground Express: https://www.adafruit.com/product/3333
- CircuitPython digitalio documentation: http://circuitpython.readthedocs.io/en/latest/shared-bindings/digitalio/__init__.html
- Older MicroPython digital I/O guide: https://learn.adafruit.com/micropython-hardware-digital-i-slash-o
- LEDs: https://www.adafruit.com/category/90
- Lock solenoid: https://www.adafruit.com/product/1512
- Small solenoid: https://www.adafruit.com/product/412
- Audio FX board: https://www.adafruit.com/product/2220
- Buttons: https://www.adafruit.com/category/235
- Door sensor: https://www.adafruit.com/product/375

Acknowledgements:
- Music: bartlebeats
- Intro shuttle footage: NASA
- Intro fonts: Typodermic
- Intro inspiration: Mr. Wizards's World
- Matrix background: cool-retro-term & cmatrix

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