PC communicate to arudino via the usb

hi, since many arduino have one usb port. Can I develop a program and run in PC to communicate with the arudino via that USB ?
thanks

I moved your topic to an appropriate forum category @quantrpeter.

In the future, please take some time to pick the forum category that best suits the subject of your topic. There is an "About the _____ category" topic at the top of each category that explains its purpose.

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Thanks in advance for your cooperation.

theoretically it is possible because million people already done this.

Sure you can use anything that can talk to the serial port on the PC. I usually use Python on the PC side.

One thing to watch out for is that opening the serial port on the PC will reset the Arduino. This will cause the Arduino to wait to see if there is a sketch download, which will delay its response.

only if bootloader is flashed

I usually use Java, C++, C# or Matlab

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