Is it possible to use the data coming to the com-port in your programs on the computer?

Question

Arduino

After playing with arduino, the thought arose, is it possible to use the data coming to the monitor in the port in my programs on the computer?
Any data can be read? That is, from any sensor and transfer to a computer?

Answer 1

Of course you can.
A lot of devices work on the comport, some old PBXs that are not yet friends with USB can send a log on the comport. Many devices reflash the bootloader via a COM port.
A lot of devices worked on comport in the past, including modems and mice.
The main thing is to know the specification, connect and work. Maybe even both ways.

Answer 2

The Arduino Host Client in C (Linux) article provides an example of how to initialize an Arduino virtual COM port to communicate with a C program.