I am new to Raspberry Pi and
GPIO communication, I am going to make a program to create a communication between my laptop and raspberry via serial com. After referred some tutorial, little confused about the connection between devices.
For my purpose, should I simply connect the
RX TX pin with
COM via 2 wires? or I need to add an
ADM232A interface IC between these to make the conversion of
BTW the program is using Qt serial.