I am trying to connect the USB keyboard . Around the Google Search saying that using USB keyboard conversion to PS2 is possible . i have checked usb to ps2 converted keyboard along with ps2 keyboard library it's working . but this bypass procedure is correct ? .
it's possible to use the connect the USB keyboard directly to Arduino Series Any of board ?
Leonardo's uC ATmega32U4 has a native USB, but it's just for the device and can't be the host!
I'm sure to OP wants to connect a USB keyboard to Arduino instead of making Arduino a USB keyboard.
This can be done using a USB host shield that uses a USB host IC such as the MAX3421E, or if you want to do it with Arduino alone, you need to use Arduino Due!