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IoT Printer

IoT Printer

A presentation at IOT London, about, the IoT printer platform I built a few years ago



April 19, 2012


  1. “An open-source distributed platform for IoT printers” James Adam -

    @lazyatom - @freerange If you’re bored: :: Text
  2. Disclaimer: I don’t know what I am doing.

  3. Project Codename: Timmy Printface

  4. Timmy - April 2011

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  7. Tom Taylor’s Microprinter, 2009 (photo by Tom Armitage)

  8. Timmy at Interesting ’11 (Photo by Roo Reynolds)

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  10. The problem with hacks is that they are hacky.

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  13. Timmy at Interesting ’11 (Photo by Roo Reynolds)

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  16. The Goal: Make it less of a giant ugly hack.

  17. Printer.

  18. Cheap printer Ethernet shield Arduino Some LEDs, etc

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  20. Poll a special URL Emit data via serial Manage some

    LEDs and maybe a button?
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  24. Content Services produce HTML pages, and post URLs for those

    pages to Backend Servers.
  25. Backend Servers expect URLs to HTML pages... ... and converts

    them into 1-bit images, then serial commands
  26. Printers download serial commands and send them directly to printer

  27. Content generation is easy in HTML

  28. Content can come from many places

  29. http://backend1/print/abc123



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  34. No central server either

  35. Two Backend Servers using the same Content Service

  36. •Other people are better at design than I am; •Other

    people have better ideas for content that I have; •So: make it easy for them to produce and print content, from which everyone benefits. The Plan:
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  39. •HTTP Header parsing •Running out of space on Arduino •Reliable

    networking is hard •Programming in C is a pain in the fucking ass. TODO
  40. More information .../wiki .../issues

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