connectiong other Microcontrollers with Nano for Serial Communication.

Using Arduino Interfacing w/ Software on the Computer
1

I have to do, Serial Communication between my pc and PIC18F452.

can i do it, using arduino Nano's USBtoSerial Converter Safely??

2

can i do it, using arduino Nano's USBtoSerial Converter Safely??

It can be done. Whether you can do it, or not, is another matter.