project assistance

Hi everybody,

i have designed a 4x4 matrix keypad interfaced to pic18f4620, i have designed a code to detect a key press from the keypad, but i need to display the result on an LCD display and also send the it to a serial port, below is my schematic and code so far. i will be glad if anybody can assist me with this.

You're in luck, this is the most common LCD interface in the world. It uses the HD44780 driver, and there's a gazillion pages about driving it on the net.