How to read data from serial ports /USB ?

You can develop it, refer below articles. https://www.c-sharpcorner.com/UploadFile/eclipsed4utoo/communicating-with-serial-port-in-C-Sharp/ https://stackoverflow.com/questions/1243070/how-to-read-and-write-from-the-serial-port https://www.codeproject.com/Articles/75770/Basic-serial-port-listening-application https://codesamplez.com/programming/serial-port-communication-c-sharp