The core of this project is based on the “CREATE Hello World” circuit (http://www.create.ucsb.edu/~dano/CUI/), and a detailed parts list can be found at that site. Additional parts needed for this project are listed in Table 2. There are some parts (for example 24 470 ohm resistors) that will be needed in addition to the parts listed in Table 2 and they will most likely be obtained from Radio Shack or Marvac

QTY	Mouser Part #	Description	Price Ea.	Total
24	112-R13-23B-B	Shin Chin Pushbutton SPST OFF-ON BLACK	$1.26	$30.24
2	688-RSA0N11S9A08	ALPS Slide Potentiom 10K OHM MONO D TAPER	$8.00	$16.00
4	550-77304	Neutrik/RE-AN Contro BLK .43"X.94"X4.0mm	$0.33	$1.32
24	604-L132XYD	Kingbright LED Stand YELLOW DIFFUSED	$0.15	$3.60
24	606-CMP100	Chicago Miniature LE LED MOUNTING CLIP	$0.16	$3.84
			TOTAL	$55.00

Table 3. Additional parts list from Mouser (http://www.mouser.com).