BODY: A / V

Last week I came across an old website of mine for a project I did back in the fall of 2009. It was an experiemental audio and visual presentation, using human biosignals as input, and featured a number of unique MIDI controllers and some circuit-bent equipment (using body contacts). Read more about the project and see some of the audio/visuals here: http://www.electrostudios.com/bodyav

Final Arduino Project #2 Post

The exhibition went well last night. I was glad to see interest in my work and thought the other Arduino projects were great as well. I definitely plan to work on other projects in the future, so check back here periodically for details! Thanks for reading.

Arduino Project #2: Update (6)

Yesterday was an extremely long and ocassionally frustrating day. Things worked out in the end, but I was reminded of a very simple and basic rule/lesson about development and just work in general - take periodic breaks! I ended up getting so wrapped up in transitioning everything from the prototype to the switchboard that I made a few mistakes along the way. For one thing, I put all the analog sensor lines in backwards because the prototype setup was opposite of how I had to put it all in the switchboard box. To make matters worse, I made the simple mistake of using an incorrect power pin on the Arduino. The result - nothing functioned in the switchboard box they way it had done in the prototype!

After finally figuring out my mistakes, I rewired everything as it should have been... and voila, success! I had to make a few tweaks/considerations because of Processing, but ultimately I'm happy with the end result. I'll need to attach one of the switchboard housing panels tonight (probably one of the sides rather than the back, just in case people want to look inside to see how it's wired), but other than that - I'm done!

Everything in its new home! This was taken after I figured out the wiring/pin issues and put all the components back in place... not fun, and I should have taken more breaks during the day!

Final product - front view.

The switchboard in action. You can see the images being displayed on the laptop above and behind the unit.

Screen shot of the laptop display portion of the project.

Arduino Project #2: Update (5)

The prototype was essentially completed and tested by the end of the day as planned. The only task I didn't get to was finalizing all of the images and audio clips I plan to use. I ended up just using some test media files instead. The next big hurdle will come tomorrow when I place everything inside the switchboard box... but for now, I'm done for the day!

Final prototype test (all five lines) before moving everything into the desktop switchboard unit.

My breadboard diagram with all line/jack and LED connection points.

The switchboard unit - ready for its new occupant!

Arduino Project #2: Update (4)

I had a great prototype session this morning! I rewired the LEDs as they need to be and then, most importantly, got the interface between Arduino and Processing working. Processing is successfully reading when each individual line is engaged and acting accordingly - which at this point is just turning the corresponding LED on. Later this afternoon I'll finish work on the prototype and get Processing to display/play the media elements I plan to use for when each line is engaged. If all goes well, tomorrow I'll move everything into the actual desktop switchboard unit itself.

Prototype test using three lines.

Arduino Project #2: Update (3)

Another successful (well, mostly successful) test last night! I created a very basic mock-up of the switchboard interface, wired everything up, and then verified that all lines and jacks (for now I just tested with 3 out of the eventual 5) are generating readable signals. Other than an initial problem with some touching wires from two separate jacks, I was able to get successful readings from all three input jacks regardless of which line was plugged in (which is what I wanted).

I did have an issue with the LEDs I plan on using, but that was only because I tried wiring them up a different way (using the existing wires from the input jacks) in order to minimize the number of wires/connections inside the switchboard. I'll go back to the way I'm supposed to wire them!

The next test before the final build this weekend will be to add the other two input jacks, rewire the LEDs, and complete the interface/coding between Arduino and Processing.

It's certainly not pretty - but it works!
Front view of the prototype (with just initial three lines connected). Note: the right LED is not illuminated - it just appears that way due to the camera flash. I need to rewire the LEDs as they should be, not by trying to use the input jacks.

Back view of prototype with breadboard and Arduino showing.

Serial monitor from Arduino is successfully reading signals from all three lines. The value of 1022/1023 indicates that a line is plugged in, while a value of "0" indicates that the line is not plugged in.

Arduino Project #2: Update (2)

The antique switchboard arrived yesterday and I took some time last night to open it up and see what I have to work with. I'll need to remove quite a bit of the innards, but overall the exterior parts will work great - the audio jacks even fit almost perfectly into the existing holes. More to come...

The innards of the original desktop switchboard unit.

...at least the cables will fit easily through the front holes!