Archive for the ‘projects’ Category

Circuit Bending and Glitch Art

I spent this last Sunday with Phillip Stearns at Machine Project, learning how to circuit bend 1990s-era digital cameras for the sake of making glitch art.

This is my camera in it’s current state:

2014-02-24_glitchCamera

There’s a battery pack for mobile use, but for experimentation I wired the camera to my breadboard and hooked it up to a spare 5V power supply (thanks, eWaste!) to keep it running long-term. (These things kill batteries fast.)

It seems that much of circuit bending for the sake of art is guess and check, as you’re never quite sure what will produce a desirable result. I started out with shorting the board manually as I walked around taking pictures, but found that it was difficult to remember what exactly I had done and how to reproduce it when I went to go look at my pictures later. The addition of the breadboard has helped with this quite a bit (since my wiring stays in place while I move around), and I’ve been gathering data on what connection combinations lead to what effect under what circumstances.

So far, this is my favourite glitchPic I’ve gotten out of this setup:

2014-02-24_glitch
Model: Rachel Koukal. Eat your heart out, Lisa Frank.

I think it would be fun to hook this up to an arduino and automate the system of stepping through the different short-circuit configurations. This might be less interesting to look at, though, as I’m noticing that weak connections and poor solder joints often produce the most beautiful results. (This is glitch, after all.)

Anyway, you can find the rest of my glitchy photos here on flickr. Once I get a more stable mobile setup, I’m gonna take this outside and see what I can get with some natural light!

[Edit] I got a mention in Year of the Glitch!

-at0mbxmb

 

Control an Individually-Addressable RGB LED Strip with a Leap Motion

x-posted on tinwhiskers.net

Here, a Leap Motion is sending data to a Processing script, which is sending that data over serial to an Arduino script, which is sending it to my Arduino Uno to control an individually-addressable RGB LED strip. If you want to do this, too, you can grab my code from GitHub.

This seems over-complicated at first, but having Processing in the mix is helpful for two reasons:

  1. The library that exists between Leap and Processing is well made.
  2. Processing excels at animation and visualization. If you do not include the Arduino+RGB LED strip, you can still use the Leap to control animations on your screen via Processing. This is very helpful for debugging, and will allow you to make sure you’re handling your input correctly before you introduce the added complications of the Arduino script and hardware. In the left photo below, the Arduino script is on the left, and the Processing script is on the right. In the right photo, Processing is running and is showing the small dot animation that moves in sync with the motion that the Leap sees.

  3. Click the pics to see them embiggened

    Here’s how the Arduino is set up:


    These pics are also embiggenable by clicking.

    Creative Commons License
    Motion-Reactive Individually-Addressable LED Strip by Michelle Leonhart is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
    Based on the Leap Motion Processing and Adafruit Neopixel libraries.

     

    The LED Matrix Backpack

    I commute roughly 10 miles round-trip through Los Angeles each day for work. This is awesome (fun! exercise! no traffic!) and terrible (cars! nobody watches where they’re going! my body is made of soft meats and cars are made of terrible metal! oh god cars!). With the short winter days upon us, all of my evening rides are through the darkness… and I really don’t feel all that safe out there.

    I have front and back bike lights, but they just don’t cut it. When I pass other bikers, I’m always startled to realize how small their bike lights look from a distance, and how long it takes me to notice them.

    So, I grabbed an LED matrix I soldered together a while back from when AdaFruit first came out with (what was then the alpha version of) their NeoMatrix library, soldered it to an Arduino Pro Mini, uploaded the code, and sewed it all to my backpack.


    The song in the background is Robert DeLong’s remix of Cigarette Barbies’ The Beauty Myth, if you’re curious

    I think it came out pretty nice! It’s painfully bright in person, and the LEDs aren’t even turned all the way up. (The text scrolling across it just says “*****”. It was really tempting to write “Hey! Don’t hit me!” or “CAUTION” or something, but I really don’t want to needlessly distract any drivers that are that close to my back.)

    Here’s what it looks like in the light:

    led_backpack

    For future projects, I have my eyes on the Night Bike 2.0, and the Spoke POV.

    -at0mbxmb