Hi,
I’m a beginner on Arduino use.
I loaded a sketch to my arduino duemilanove and it was working pretty good, but accidentally I unplugged the USB cable. When i plugged it once again, it said that the Serial Port was already in use. I restarted the arduino interface, but the error stayed there, and the Tx blinked constatly.
I restarted my laptop but nothing happens, just the Tx blinking
Any ideas to fix it?
Thanks for your help.