The concept of this project was to create a clone of the Monome using the open source Arduino platform. The Monome is an adaptable minimalist grid-based controller that was originally designed for creating and performing electronic music. The Monome is typically released in sizes varying from 64 to 256 buttons, plus a very small run of a 512 edition. Because Monome has embraced the open source movement, they have made the firmware for the controller available to the public to use, adapt, and share as they wish. This has enabled the firmware to be ported to the Arduino platform, for others to continue to produce, build upon, and contribute to the community. As a musician and composer, I have been interested in new musical interfaces, especially those that allow for electronic music production and performance. As an avid user of the audio production software Ableton Live, I originally gravitated towards the grid-based interface because it makes perfect sense in correspondence with the session/performance mode in Ableton. As I got deeper into computer music I began to gain a greater appreciation for modularity in interface arrangement and became interested in the ways that one can create their own musical setup using the graphical programming environment, Max/MSP. I also became aware of the Open Sound Control protocol (OSC) and the benefits it has over the current, but dated MIDI standard. Through searching for practical ways to take advantage of OSC for audio and interactive arts, this project enabled me to marry my interests into a cohesive interactive interface as I explored physical computing.