I vaguely remember seeing something like this mentioned but, of course, I can't find it now. I have the following three USB connections on Windows 7: COM4 - Duemilanove COM6 - Nano COM7 - USB-TTL Serial interface I have a different program loaded into each Arduino and had thought that if I was …

Two or more Arduinos and USB COM Ports - reboot problem

el_supremo March 30, 2012, 9:55pm 3

Indeed it is. All three ports are connected to a powered USB3 hub.

Pete