Quantity   Component name
1 × ATMEGA 328p DIP Package http://www.mouser.com/Search/ProductDetail.aspx?R=ATMEGA328P-PUvirtualkey55650000virtualkey556-ATMEGA328P-PU
1 × LCD 20x4 HD44780 Compatible http://www.amazon.com/gp/product/B00FMTC0KC/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1
5 × Tactile Switches SPST http://www.mouser.com/Search/ProductDetail.aspx?R=PTS645SL43-2_LFSvirtualkey61110000virtualkey611-PTS645SL432
1 × LiPo Charger/Booster https://www.sparkfun.com/products/11231
1 × Lithium Polymer Battery - 1000mAh https://www.sparkfun.com/products/339
1 × Crystal - 16 Mhz http://www.mouser.com/Search/ProductDetail.aspx?R=ATS16Avirtualkey67110000virtualkey774-ATS16A
2 × Capacitors - 22pf http://www.mouser.com/Search/ProductDetail.aspx?R=K220J15C0GH53L2virtualkey59420000virtualkey594-CN15A220J
1 × Stereo Jack - 3.5mm Panel Mount http://www.mouser.com/Search/ProductDetail.aspx?R=161-3402-Evirtualkey11180000virtualkey161-3402-E
5 × Resistors 10k
3 × Resistors 1k
1 × NPN Transistors
1 × Potentiometer - 10k Linear
1 × Various Lengths of Wire
1 × 2 Channel Optoisolator http://www.mouser.com/ProductDetail/Fairchild-Semiconductor/MCT62/?qs=f8e5tgPJFBMIQrInBaT03g%3D%3D