If you use Visual Studio Code, the Arduino extension includes a built-in serial monitor.
Run the downloaded file and follow the on-screen prompts. arduino serial monitor download
Open the application once the installation is complete. Accessing the Serial Monitor If you use Visual Studio Code, the Arduino
Choosing between plain text or using the Serial Plotter to see data as a visual graph. Essential Settings for Success If you use Visual Studio Code
You can choose to automatically add a Newline (NL) or Carriage Return (CR) to the messages you send to the board. Alternative Options