Simple FX Mixer/Techno Pad

This is a fun little FX pad that beeps with different pitches for each button pressed. It is also supposed to be able to change all the pitches of each of the buttons by pressing the side bar buttons. The code is included so you can change the programing for different delays and pitches. And the LCD display is so you can either display the pitch set or whatever else you want. (Even though it is pretty hard to see in this image)

For this project you'll need: An Arduino Mega ADK board, a large bread board, 24 male to male wires, 2 male to female wires, 16 button keypad with letter sidebar, a passive buzzer or two, 10k potentiometer, and an 16x2 LCD display.

The code only partially works it but it will make a few different sounds. The code is here for you to edit and change to your liking so you can improve it. Here are the three codes I put together to make this thing be able to make sound with each push of a button.

This is the wiring diagram as said in the step title.