Is it possible to interface an USB keyboard (HID) to arduino UNO????.
I could find some library files to interface usbkeyboard with arduino mega/due.
I wana know whether UNO is compatible if not please suggest the arduino board for interfacing USB Keyboard.
All helps are greatly appreciated
Connecting a usb-keyboard requires that the device the keyboard is connected to has usb-host capability. There is a ArduinoUSBHostShield that you can use.
Yes i do have a USB shield. But my project is to interface a USB keyboard to a LCD display via Arduino. For which i wana know whether it is possible to continue with UNO or any other arduino board can be suggested.
please help me out..
As far as i can see there should be no problem doing that.
Have a look at the USB Host Shield 2.0 Documentation. It states that the shield is compatible with the UNO. And i imagine that the code will not make unrealistic demands on the hardware.
Thank you let me check out 
I am new to Arduino and I want to communicate with a BBC microbit, so I have been looking at the USB comms.
I don't want to seem thick or stupid, but isn't there a way of using the USB with which we upload our code as a comms port, for serial comms?
And indeed that is exactly its purpose. 
Uploading is performed using serial communications with the USB host.