Thanks you for your reply. Yes, in the last days, I have try multiple things: new USB cables and try to connect it to another computer. Fist on the USB cable, tryed 2 more and same thing, the board is not recognised at all. This same two cables works both with and Arduino UNO, so cables are working. I also try today the board, with the previous mencioned cables on a Debian (Lenny) machine and when I “lsusb” there is no new hardware conected. For some reason, there is no activity on the USB port, even if the board seems to be booting as is responding to a limit switch signal. Maybe is a tinyg’s USB conector issue, I don’t know, but the is no aparent damage on it, maybe is defective as this.
Did you suggest a replacement or have you any other idea to try?
Many thanks.
