Quantity   Component name
1 × Keypad Harvested from an ancient broken quantum analyzer
1 × 128x32 i2c oled FZ1109-1
1 × arduino nano
6 × 3/8" standoff
1 × mje3055t npn transistor
1 × 6v3 zener diode
1 × resistor 470 ohm
1 × breadboard 7x9 cm