However, there's a work-around for this problem. In Windows, you can emulate a fake serial port bridge using a utility named com0com. In this tutorial, you'll see how we can write a middle-man program that communicates with the Trinket and com0com, so that a serial terminal (such as the one built into Arduino IDE) can talk with the other end of com0com.
- Arduino library named TrinketFakeUsbSerial
- A PC app named TrinketFakeUsbSerialHostSW
- LibUsbDotNet, which makes it easy for me to use libusb-win32 to write TrinketFakeUsbSerialHostSW for Windows
- com0com, which emulates the two fake serial ports (only required on Windows)
- Some sort of serial terminal (Arduino IDE, Hyperterminal, Teraterm, RealTerm, Putty, etc)