Quantity   Component name
16 × Comon cathode RGB leds https://www.sparkfun.com/products/9985
1 × Encoder https://www.sparkfun.com/products/10596
1 × FTDI https://www.sparkfun.com/products/9716
1 × Arduino Pro Mini 328 https://www.sparkfun.com/products/11113
16 × Diodes
1 × 4x4 Silicon button Pad like the one of SparkFun
1 × Raspberry Pi
1 × Female and male pin headers To connect arduino to the board without soldering
1 × Sd Card
1 × [optional] 3.3v to 5 v. logic level converter [untested] to use GPIO instead of USB FTDI for the serial communication