Quantity   Component name
1 × Tibbit #10 (power supply)
1 × #00_1 Tibbit (4 direct I/O Lines) Electronic Components / Misc. Electronic Components
1 × Linux TPS3 (LTPS3) board
1 × TBP3 enclosure Optionally
1 × Tibbit #18 (power jack)
4 × 7-segment indicators with common cathode (e.g. BL-S56A-12UY) Common anode devices require a different connection scheme.
32 × 220 Ohm resistors
4 × 74HC595 shift registers
1 × Breadboard and wires