Roasting coffee the old fashioned way... - Mon, 2014-04-07 21:12

...with a popcorn popper and a microcontroller!   More to come...

Categories: DorkbotPDX,

Processing class flyers

DorkbotPDX Flickr Group - Sun, 2014-04-06 17:05

bzztbomb has added a photo to the pool:

Processing class flyers

Paper flyers, what????

Processing Fundamentals - Sun, 2014-04-06 15:43
// convenience function to get the id attribute of generated sketch html element function getProcessingSketchId () { return 'ProcessingFundamentals'; }

DorkbotPDX invites you to "Processing Fundamentals".

A free workshop at Flux

DorkbotPDX is happy to offer a 4-hour intro to Processing -- a graphics programming environment. Students will learn the basics of Processing.
No prior programming experience required!


  • When: Sunday, April 27. 1-5pm
  • Where: Flux Hackerspace (412 NW Couch #222, Portland, OR)
  • Cost: FREE!!!
  • Bring: A laptop with Processing 2.0 installed (if you can)
  • RSVP:

Source code: Processing_Fundamentals

Built with Processing and Processing.js

Categories: DorkbotPDX,

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DorkbotPDX Flickr Group - Mon, 2014-02-24 00:46

breedx has added a photo to the pool:

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DorkbotPDX Flickr Group - Mon, 2014-02-24 00:46

breedx has added a photo to the pool:

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DorkbotPDX Flickr Group - Mon, 2014-02-24 00:46

breedx has added a photo to the pool:

Anyone recommend a beginner 3d printer? - Thu, 2014-02-13 14:45

Hey everyone! I'm the lead organizer for the Portland Indie Game Squad. Our funding project recently surpassed most of its goals – which are all resources being made available to the community – and I'm coming up with some higher-tier options. A 3d printer is definitely on my list for the board game/miniature game developers in the group, and I've been asking around for what people might recommend as a "beginner" setup, somewhere between $400 and $600.

Multiple people have been saying the $500 Solidoodle is the way to go, but any other opinions are appreciated.


Categories: DorkbotPDX,

A Music From Very Short Programs Box - Sun, 2014-02-09 20:10

This weekend my friend Jacob S. and I built a Arduino based music box to play Ville-Matias Heikkilä wonderful one-line C code that makes surprisingly complex "Music From Very Short Programs."  

We used a Teensy 1.0 and the Arduino IDE for development.  We used the Teensy to drive a Microchip MCP8422 SPI DAC and fuck-all for an amplifier.  Much fantastic Portland beer was consumed, and here are the results.  We think its awesome but we sure wish we understood why the hell it sounds so cool.  Maybe Ville-Matias explains it somewhere.  The DAC is 12 bits, and the programs are 8-bit so perhaps a talented composer could write even better music using those extra four bits.

See a video of our work at

See Ville-Matias' awesome original (complete with visualization) at


AttachmentSize photo.jpg574.21 KB photo2.jpg589.15 KB photo3.jpg554.92 KB
Categories: DorkbotPDX,

Introduction to Pure Data (Pd) - Sun, 2014-02-02 23:50
An Introduction to Pure Data

DorkbotPDX is happy to offer a free workshop as an introduction to Pure Data (Pd).

When: Sunday, February 23rd, 2014. 1-5pm

Where: Flux 412 NW Couch Street, #222 (map)

Bring: A laptop and headphones

Instructors: Jesse Mejia, Alex Norman, Jason Plumb, Edward Sharp


Pure Data (Pd) is a free, open-source, community supported data flow language and coding environment with an emphasis on sound, music, and multimedia.  It was originally written by Miller Puckette (also the original author of Max/Max MSP) and runs on Linux, Mac OSX, Android, and Windows.

Pd has been used widely in the creation of art -- such as music, sound art, visual art, generative, new-media, and interactive art.  Pd interfaces readily with MIDI equipment and many popular microcontrollers.

In this 4-hour course, students will learn the basics of Pd and will have fun developing foundational Pd patching skills.  

We have curriculum posted here.

Beginners are welcome.  No prior computer programming or sound programming experience is required!


Students should attempt to install Pd prior to the workshop...but if not, no biggie.  We can help with that!

Seating is limited to 20 participants.  Please RSVP to to reserve a spot.

Attendees will respect Flux's code of conduct and will be asked to donate.

Workshop Links/Notes/Materials

The workshop is over and was a blast!  Thanks to all who turned up and worked hard and engaged the community.

Here's a list of resources, some/all were mentioned or showed during the workshop:

  1. scott c
  2. scott g
  3. ryan c
  4. charlie s
  5. rosanna y
  6. elias f
  7. myles d b
  8. wyatt s
  9. chester l
  10. paul f
  11. shannon z
  12. pavel k
  13. jared ?
  14. jeff c
  15. allen g
  16. mike c
  17. adrian m
  18. kate r
  19. gordon b
  20. jamie
  21. dylan
  AttachmentSize a_fun_simple_darkwash2.pd3.17 KB sinefeld.pd1.26 KB
Categories: DorkbotPDX,

Solar Bling - Sun, 2014-01-05 12:47

I like to put my projects on Instructables and I wanted to share this recent post.

Its 2.5V 10F Super Capacitor, Solar Charged, and Attiny85 charge controller and LED blinker.



Categories: DorkbotPDX,

Arduino SMS device - Tue, 2013-12-31 02:25

I'm working on an SMS device that is programmed in the Arduino IDE and uses a tiny chorded keyboard for input, a SIM900 GSM module to accept standard AT commands, and a Nokia5110 LCD to display output. I stopped by earlier this evening and Paul (thanks Paul!) helped me debug. I've posted a thread on the forum but basically I'm having trouble getting my sketch to run in the tiny 2K of RAM available on the ATmega328.

I'm hoping somebody can help me reduce the memory footprint of the GKOS keyboard library found here I've updated that page to reflect the minor tweaks I had to do to get it to work with Arduino 1.0+ since it hasn't been updated in years. If you have other suggestions I'd be happy to hear them.

AttachmentSize firstsms.png784.95 KB
Categories: DorkbotPDX,

[dorkbotpdx-announce] Reminder: DorkbotPDX 0x0B is tomorrow!

dorkbotpdx-announce - Thu, 2013-06-20 12:00
Just a quick reminder that DorkbotPDX 0x0B is tomorrow, Monday, June
17th at 8pm at Backspace!


We're excited to be hosting for Wendy and Mikey on (book) tour about
their unique, modern technological homesteading life!

And yes, it's taken most of a year to arrange, but we'll finally get a

Categories: DorkbotPDX, Mailing Lists

[dorkbotpdx-announce] DorkbotPDX 0x0B - June 17th

dorkbotpdx-announce - Thu, 2013-06-20 12:00
Next Dorkbot (June 17th) we will be hosting some presentations! Details


When: Monday June 17th, 2013 - 8pm
Where: Backspace (115 NW 5th Ave)
Who: All ages -- open to the public
Cost: Free!

------------------------------ ------------------------------ -----------

Categories: DorkbotPDX, Mailing Lists

[dorkbotpdx-announce] Fwd: Arduino Class at ADX

dorkbotpdx-announce - Thu, 2013-06-20 12:00
---------- Forwarded message ----------

Hi all,
If you're just getting started with Arduino and the Processing
language, ADX<[link]> is
offering an introductory class *this

Categories: DorkbotPDX, Mailing Lists

[dorkbotpdx-announce] DorkbotPDX 0x0A is Monday, 8pm, at Backspace!

dorkbotpdx-announce - Thu, 2013-06-20 12:00
Just a quick reminder that DorkbotPDX 0x0A will be hosted tomorrow at
Backspace. The event page is here:


In addition to having Glenn Phillips and also the Church of Robotron as
presenters, we will host an OpenDork session. This is an open-mic time
block where anybody may take the stage to talk about project or show a

Categories: DorkbotPDX, Mailing Lists

[dorkbotpdx-announce] DorkbotPDX 0x0A :: March 25th, 8pm

dorkbotpdx-announce - Thu, 2013-06-20 12:00

When: March 25th, 2013 - 8pm
Where: Backspace ([link])
Who: All ages -- open to the public
Cost: Free!

Self Balancing Robots 101
Glenn Phillips
Glenn's presentation will cover the basics of self balancing robots:

Categories: DorkbotPDX, Mailing Lists

[dorkbotpdx-announce] Feb 11th meeting is at Someday Lounge

dorkbotpdx-announce - Thu, 2013-06-20 12:00
Hi all.

Sorry I'm late getting this out to the lists...I generally try and give
people a little more time to make arrangements, so sorry!

Tomorrow's meeting (Feb. 11th) will be held at Someday Lounge and
Backspace will be hosting a music event.

This is a casual meeting (no "formal" performances/presentations), but

Categories: DorkbotPDX, Mailing Lists

[dorkbotpdx-announce] -=* ARDUINO CULT INDUCTION (28Jan/FreeGeek/$35) *=-

dorkbotpdx-announce - Thu, 2013-06-20 12:00

Wanna make sure you at least make a dorkboard before the world esplödes?

This is your first chance of 2012 to be inducted into the cult of the arduino.


Free Geek, 1731 SE 10th Ave


Saturday January 28th, 2012 from 1 to 5pm



Categories: DorkbotPDX, Mailing Lists
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