Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Blending Art, Technology, and Light by Preston ...

Sponsored · Your Podcast. Everywhere. Effortlessly. Share. Educate. Inspire. Entertain. You do you. We'll handle the rest. →
Avatar for PyCon 2014 PyCon 2014
April 11, 2014
1
410

Blending Art, Technology, and Light by Preston Holmes

Avatar for PyCon 2014

PyCon 2014

April 11, 2014
Tweet

More Decks by PyCon 2014

See All by PyCon 2014
Postgres Performance for Humans by Craig Kerstiens
Avatar for PyCon 2014 pycon2014
29
3.7k
Technical Onboarding, Training, and Mentoring by Kate Heddleston and Nicole Zuckerman
Avatar for PyCon 2014 pycon2014
1
2.4k
"My big gay adventure. Making, releasing and selling an indie game made in python." by Luke Miller
Avatar for PyCon 2014 pycon2014
2
1.7k
Farewell and Welcome Home, Python in Two Genders by Naomi_Ceder
Avatar for PyCon 2014 pycon2014
1
780
Deliver Your Software in an Envelope by Augie Fackler and Nathaniel Manista
Avatar for PyCon 2014 pycon2014
1
610
Hitchhikers Guide to Free and Open Source Participation by Elena Williams
Avatar for PyCon 2014 pycon2014
6
1.2k
Localization Revisted (aka. Translations Evolved) by Ruchi Varshney
Avatar for PyCon 2014 pycon2014
0
730
Smart Dumpster by Bradley E. Angell
Avatar for PyCon 2014 pycon2014
0
570
Software Engineering for Hackers: Bridging the Two Solitudes by Tavish Armstrong
Avatar for PyCon 2014 pycon2014
0
780

Featured

See All Featured
Building a Modern Day 
E-commerce SEO Strategy
Avatar for Aleyda Solis aleyda
45
9k
Templates, Plugins, & Blocks: Oh My! Creating the theme that thinks of everything
Avatar for Michelle Schulp Hunt marktimemedia
31
2.7k
How to Ace a Technical Interview
Avatar for Jacob Kaplan-Moss jacobian
281
24k
The Director’s Chair: Orchestrating AI for Truly Effective Learning
Avatar for Mike Taylor tmiket
1
140
コードの90%をAIが書く世界で何が待っているのか / What awaits us in a world where 90% of the code is written by AI
Avatar for r-kagaya rkaga
61
43k
Statistics for Hackers
Avatar for Jake VanderPlas jakevdp
799
230k
Unsuck your backbone
Avatar for Amy Palamountain ammeep
672
58k
The Organizational Zoo: Understanding Human Behavior Agility Through Metaphoric Constructive Conversations (based on the works of Arthur Shelley, Ph.D)
Avatar for Dr. Kim W Petersen kimpetersen
PRO
0
280
The AI Search Optimization Roadmap by Aleyda Solis
Avatar for Aleyda Solis aleyda
1
5.5k
Practical Orchestrator
Avatar for Shlomi Noach shlominoach
191
11k
[Rails World 2023 - Day 1 Closing Keynote] - The Magic of Rails
Avatar for Eileen M. Uchitelle eileencodes
38
2.8k
Imperfection Machines: The Place of Print at Facebook
Avatar for Scott Boms scottboms
269
14k

Transcript

  1. Blending Art, Technology, and Light Python for interactive and real

    time LED installations Preston Holmes! @ptone

  2. Why are LEDs interesting?

  3. None
  4. None
  5. None

  6. LED LED Controller Hardware Interfaces and Protocols Software and Libraries

    Creative Effects

  7. ! Light Emitting Diode

  8. LED

  9. None

  10. • Three LEDs • put into a 5050 surface mount

    package Common RGB LED

  11. Smart vs Dumb LEDs • A dumb LED is an

    RGB LED without any Integrated Circuit • 3 positive voltage inputs, and a common ground • responds just to voltage • An entire strip shares this electrical input • All LEDs on the strip are the same color

  12. Smarter

  13. Moar Smarter WS2811/2812

  14. None

  15. 5 176 50 60 0 230 20 8 100 5V

    serial protocol Array of Bytes

  16. http://fastled.io But….

  17. SanDevices E682 Joshua1Systems ECG-PIXAD8

  18. None

  19. DMX

  20. E1.31 DMX over Ethernet

  21. And what about the software

  22. Ethernet USB Smart LED Serial DMX512 (RS485) “Software” E1.31

  23. Interface Library Program! 0010101 Ethernet USB Smart LED Serial DMX512

    (RS485) “Software” E1.31

  24. http://www.openlighting.org/ola/

  25. https://github.com/ptone/lumos E1.31 in Python

  26. None
  27. None

  28. Inputs Elements Outputs Keyboard, MIDI, OSC, Kinect, Event File Single,

    Groups, Chases, Effects DMX-USB, E1.31, servo control ...

  29. BirdFish https://github.com/ptone/BirdFish

  30. Trigger Events

  31. 3 Trigger Events 1 2

  32. Map Events

  33. 1 2 3 4 5 6 7 8 9 10

    11 12 13 14 15 16 17 18 etc Speed of chase set by mapped events Events: Map Events Trigger Events Elements: Channels: Single Group Chase

  34. Inputs • MIDI (Musical Instrument Digital Interface) • 16 channels,

    7 bit (0-127 value) • large number of physical controllers • OSC (Open Sound Control) • More modern - UDP based • Path based with very flexible values
  35. None
  36. None
  37. None

  38. Demo

  39. A D S R • Attack • Decay • Sustain

    • Release Envelopes

  40. Tweening

  41. Position over time Saturation Hue + Intensity

  42. Demo

  43. Thank You

  44. Questions?

  45. Bonus Material: Adaptive Frame Rates

  46. 1 2 3 4 5 6 7 8 9 10

    11 12 13 14 15 16 17 18 19 20 1 Second

  47. Set target time based on current frame rate Render elements

    and effects into data Send Data to Output Time remaining till frame “due”: Wait Frame data “overdue” Reduce framerate

  48. 1 2 3 4 5 6 7 8 9 10

    11 12 13 14 15 16 1 Second