I need some keyboard input to arduno. Is it possible in any way?
The texts "path" keyboard-->Arduino-->lcd 16*2 screen.
Do you need "some keyboard" or an USB keyboard ?
Problem with arduino is that it has no usb-host capabilities.
If it has to be USB, you can use a costly USB-hostshield.
A ps2-keyboard may... be more interesting though, you can read it using 2 pins of your arduino and don't need extra hardware.http://playground.arduino.cc/Main/PS2Keyboardhttp://playground.arduino.cc/Main/PS2KeyboardExt2
After you're receiving characters either way, it should be possible to send them to an lcd.