Quantity   Component name
1 × USB keyboard standard USB keyboard
1 × USB Host Shield 2.0 ADK USB controller for Arduino
1 × Arduino Pro mini the controller brain for the keyboard
1 × 15"LCD an old monitor from a laptop
1 × Arduino nano RP2040 connect central brain
1 × VGA display controller VGA display controller for LCD
1 × PIC32MX250F128B-I/SP the brain of the GPU
1 × power bank 20000mAh
1 × RTC DS3231 RTC
1 × PCF8574 converters controlling 8 LEDs and LPT port