Quantity   Component name
1 × Arduino nano v3 Arduino
1 × DIN5 connector Connector
1 × 300R Resistor
6 × micro switch
6 × LED - 2x green, 2x yellow, 2x red LEDs
1 × DIN7 connector Connector
2 × 4k7 Resistor
8 × 220R Resistor
13 × 10k Resistor
1 × 470R Resistor
3 × 1N4148 Discrete Semiconductors / Diodes and Rectifiers
1 × 6N138 Opto and Fiber Optic Semiconductors and ICs / Optocouplers and Optoisolators
1 × 8k5 Resistor