I have a MacBook Pro running OS X Yosemite (10.10.3). I connected my Arduino UNO R3 to my computer for the first time after the Yosemite upgrade - it worked fine before this!
When I opened the Arduino IDE I selected Tools > Board > "Arduino UNO", but when I try to choose a Serial Port the only options are:
/dev/tty.Bluetooth-Incoming-Port /dev/cu.Bluetooth-Incoming-Port /dev/tty.Bluetooth-Modem /dev/cu.Bluetooth-Modem
I have followed several tutorials and threads on how to 'fix' this issue, all to no avail:
I've installed the latest version of the FTDI drivers (even though, from what I recall the UNO doesn't even need them): FTDIUSBSerialDriver_v2_3.dmg
Downgraded to a prev. version of the FTDI driver hoping that would clear it up: /Volumes/FTDIUSBSerialDriver_v2_2_18
I followed a tutorial of how to remove the existing Apple drivers and removed the kext files, etc...
Tried connecting arduino to both USB ports.
Tried various cables, including the one that a I used before the Yosemite upgrade.
Tried installing updated Silabs drivers: Arduino compatible's serial port not showing Mac OSX
Walked through the entire Arduino Mac OSX guide: http://www.arduino.cc/en/guide/macOSX
After looking into the system info of my Macbook Pro, I can see the USB Controller is Broadcom based, in case that helps. I searched for Broadcom USB drivers but got hits for Silabs one instead.
Under my Tools > Port menu.. I can see these options: clicking the Serial Ports option doesn't do anything.
ls -1 /dev/tty.* or
ls -l /dev/tty.usb* from terminal gives me:
The Board does NOT show up under system networking (as it has for others), so it's not recognized as an incorrect device.
I'm at a complete loss. The board powers up... but I cannot connect to it.
SIDE NOTE: This is a legit Uno R3, not a clone.