Quantity   Component name
1 × USB1 SMD mini-USB jack
1 × U1 socket 32-pin ZIF socket
3 × R33, R133, R233 150 ohm 0805 SMD resistor
14 × R0 through R13 10k ohm 0805 SMD resistors
1 × n/a printed circuit board
1 × U1 Arduino Nano
12 × Q0 through Q11 5050 3-chip LEDs, warm white
1 × Q12 5050 3-chip LED, green
1 × Q13 5050 3-chip LED, red
14 × Q0 through Q13 MMBT3904 SMD general purpose NPN transistors
39 × all Rs except R0 through R13, R33, R133, and R233 100 ohm 0805 SMD resistor