I am trying build a keypad using an arduino as the keypad controller. i used code from arduino's site and can see the keypresses on the serial monitor. I would like to use the tx pin to output the keystrokes at a baud rate of 4800 8n1 could this be done?
If you are seeing data on the serial monitor, it is getting to the tx/rx pins.
If you don't see the data on whatever is connected to the tx/rx pins, the problem is on the other end.