Quantity   Component name
1 × KEM-18011-BSR-2L 7-segment LED digit
1 × ULN2803 Darlington Driver Discrete Semiconductors / Power Transistors and MOSFETs
1 × 74HC595 Cascading Shift Register
1 × Arduino Nano microprocessor
1 × breadboard Electronic Components / Misc. Electronic Components
7 × 330 Ohm