PS/2 Keyboard
Would be great for “hobby” computers for example.
Based on this library for Arduino IDE : https://github.com/techpaul/PS2KeyAdvanced or this (a bit different) https://playground.arduino.cc/Main/PS2Keyboard/
Inputs
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DATAPIN(Pin on the Arduino) — the “data” pin. -
IRQPIN(Pin on the arduino) — the “clock” pin. - …
Outputs
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OUT(byte/character) — the description -
PULSE(pulse) — pulse whenever a key is pressed (NOT when it changes!) - …