You could get one of the arduino serial boards and use an rs232 port (or a usb/rs232 adapter) on your computer. rs232 will run longer distances than USB, and do it a lot less expensively. You'll also have your USB arduino left to play with.
-j
You could get one of the arduino serial boards and use an rs232 port (or a usb/rs232 adapter) on your computer. rs232 will run longer distances than USB, and do it a lot less expensively. You'll also have your USB arduino left to play with.
-j