listComPorts – Windows command-line tool for USB-to-serial @ todbot blog.

Did you know each Arduino has a unique serial number in its USB interface that you can use to distinguish one Arduino from another? If you deal with multiple Arduinos, knowing exactly which one is plugged into your computer can be a real time-saver. But actually getting at this serial number and mapping it to COM ports can be challenging. For Windows computers, here’s “listComPorts”, implemented both in GCC C code and in VBScript, both available from my usbSearch github repository.

This is really awesome, a great tool to help identify what devices are attached to the USB port, sort of like “USB prober” but for Windows. We hope this gets added to the Arduino IDE.