Hey everyone just wanted to ask, what do you think is the best way to for long range
(about a few kilometers) wireless serial communication between Arduino and PC. And if you have any reference about that way can you also provide that pls.
GSM
Why do you say "wireless serial" communication rather than simply "wireless" communication?
And I don't have any better suggestion than @AWOL. Maybe an extension of his idea is to link the Arduino to the internet via a mobile phone.
What sort of data and how much data do you want to send?
...R
You may want to look at LoRa as well. It's a low power WAN for IOT devices, sensors etc...
Pieter
You really need to describe what it is you are wanting to do, and where it is you are planning on doing it.
There are circumstances where just about any radio system will give a 'few kilometers' and there are other circumstances where very specialized radio systems are needed to give a 'few kilometers'.