Tossed out /Users/user1/Library/Arduino/preferences.txt and /Users/user1/Library/Preferences/cc. When connected the Uno green “ON” LED is on and “L” LED is flashing most likely due to “Blinking Light” (File > Examples > Basic > Blink) example currently running and was uploaded from the PPC G5. All USB ports directly on the computer were tried. Never had a “Network detected” dialog when plugging in Arduino Uno on Snow Leopard 10.6.8 on MacBook Pro.Ĭhanged out 4 different USB cords, all tested in working order. The “solution” to “just use the G5” is no longer an option. The Uno worked on my PPC G5 for the past year. Using Snow Leopard 10.6.8 on MacBook Pro, all software up to date via software update. Did you select the right one from the Tools > Serial Port menu?”

Or if no bluetooth port is selected: “: Serial port ‘COM1’ not found.

Try quiting any programs that may be using it.” “: Serial port ‘/dev/tty.Bluetooth-Modem’ already in use.

Always the same orange in arduino console. Only listed ports are /dev/tty.Bluetooth-PDA-Sync, /dev/cu.Bluetooth-PDA-Sync, /dev/tty.Bluetooth-Modem, /dev/cu.Bluetooth-Modem. No relevant serial ports are listed in Tools > Serial Port >.