...The goal of this project is to use Arduino hardware with C language programming to manipulate the guitar signal by various effects of phaser, flanger, reverb, digital delay and echo, and tremelo. Also, the signals of two microphones, two guitars, and one mp3 device will be inputted into and passed through two 3-band programmable equalizers. All of the processed signals will pass through and be amplified by a clean master volume controlled power amp. The digital effects will be toggled by means of a floor panel controlled by digital foot switch controller communication with the Arduino hardware via a digital cable. ...