How does the materiality and interface of an instrument affect its affordances and user experiences? This is first question that I asked myself before starting conceptualizing this project. The answer for me was to create a nondescript, programmable musical instrument that lends its users to create complex sound systems with simplistic input.
The system is compounded by simple and cheap materials in order to experiment with what we have at a hand, instead of expensive and unaccessible components.
Tacks + Bubble Wrap + Cardboard + Acrylic + Rubber band
Each tack works as a capacitive sensor providing the opportunity to play different notes. Sounds can be positioned differently just unplugging the wires and plugging them again using a total different setting.
I prepared a set of 8 metallic tags and used them as capacitive sensors that trigger a different sound each. I’m using Adafruit’s library for the CAP1188 to be able to have 8 different wires. In addition, I have pitches.h that includes the different frequencies of sound that I’m playing.
Here, there is a sample of how each capacitor trigger the sound just by calling the proper element in the array.
The system allows to touch multiple elements at the same time playing the corresponding tone on a sequence.
1. SOLDER THE CAPACITIVE BREAKOUT
2. DESIGN THE CIRCUIT
3. TEST THE INTERFACE
4. MOUNT THE BOX
Acrylic box: Milan Gary's production
5. ADD A BIGGER BUZZER