Interface your PC keyboard with AVR microcontroller. Atmea16 is used here and the lcd 16x2 is used to display the typed letters.
The data line of keyboard is connected to PD1 and the clock line is connected to PD2(INT0).
The following are AVR and LCD connection information
AVR PS2 keyboard driver for AVR microcontroller 1.0
AVR (Based on Atmega16) PS2 keyboard driver, using LCD16x2.