There are USB-parallel converters, like the usb-serial market there are good and bad ones, the main issue is often how the driver (windows/client side) would talk to the device, up until xp a lot ...

I use that in a lot of Circuit VR posts so you can click on a circuit and see it live. However, the simulator does not save the source code in the virtual Arduino. You have to do that yourself.

PCB Direct Virtual Breadboard Creates Circuits For Arduino, RasPI, ARM And More. 9:54 am January 12, 2015 By Julian Horsey.