So is it the right way up and what is the baud rate?
Baud rate is 38400..
Just wire it up like you showed. You might want to use one of the Mega's other serial ports like 1, 2 or 3.
i just connected the wire to serial port 0 (TX 0 & RX 0). But i don't know how to read, is it normal serial print?
i tried normal serial print,but no data.