The conductive paint turned out to be quite easy to work with. It goes on very thin (we applied 3 coats - it comes in an aerosol can) and dries quickly. We just used a scrap piece of foam core for now.
We were able to calibrate the flashing and conductive paint (about the same area of material for both) to give good results. The output is the dimming LEDs using the PWM pins on the Arduino - the recording module is in the photos but doesn't have power so it's not functioning.
Here are our components so far.
Here's a video of the working prototype. Watch the red and green LEDs in the lower-left corner change brightness based on proximity. (The recording module is wired in but doesn't have power.)
We'll be presenting our project with the Living Architecture review this Thursday, and hope to install the prototype in the school at the Visual Studies/CAD show early next semester. Stay tuned!
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