Arduino Forum

Using Arduino => Installation & Troubleshooting => Topic started by: DillyDog on Dec 15, 2012, 02:24 am

Title: Trouble with Mac OS X 10.8.2 and Serial Ports
Post by: DillyDog on Dec 15, 2012, 02:24 am
Hi All

Can anyone shed some light on this problem before I give up and work on a Windows machine.

I have suddenly lost the ability to connect to my Arduino Uno with my Mac. I am running OS X 10.8.2, I have turned Bluetooth off completely and removed all Bluetooth connections. I have re-installed the FTDI drivers over and over again but the serial port does not show up in the IDE. I have changed USB ports, trying both hub connections and directly from the back of the Mac. I have restarted the Mac countless times but all to no avail.

Is there something I'm missing? Is there some little trick I should know about?

Any help here would be appreciated.
Title: Re: Trouble with Mac OS X 10.8.2 and Serial Ports
Post by: cmiyc on Dec 15, 2012, 03:54 am
Bluetooth has nothing to do with it.
FTDI drivers don't matter on a Uno (if it is genuine).

What does System Information (In Applications -> Utilities) say under USB when the Arduino is connected?
Title: Re: Trouble with Mac OS X 10.8.2 and Serial Ports
Post by: marcus60 on Jan 09, 2013, 05:38 pm
I have the same problem, the error message is :
"the serial port is already in use, try to close other application that may use it"
Title: Re: Trouble with Mac OS X 10.8.2 and Serial Ports
Post by: marcus60 on Jan 09, 2013, 05:41 pm
exactly:
processing.app.SerialException: Serial port '/dev/tty.usbmodem5d11' already in use. Try quiting any programs that may be using it.

But it is not true !!
Title: Re: Trouble with Mac OS X 10.8.2 and Serial Ports
Post by: cmiyc on Jan 09, 2013, 07:35 pm
No, your problem is completly unrelated.  Not sure how you define "not showing up" and "already in use" as he same problem.

Try these fixes for serial port in use:
http://www.cmiyc.com/blog/2012/10/08/arduino-fixing-serial-port-in-use/
Title: Re: Trouble with Mac OS X 10.8.2 and Serial Ports
Post by: kajfjendbo on Jan 10, 2013, 09:44 pm
thanks. I finally did find somebody having the same problem with serial port af my Mac. my trouble still is present, as I am new here and don't understand the solution. Terminal??? could you please tell me exactly how to close the ever open ports?
Title: Re: Trouble with Mac OS X 10.8.2 and Serial Ports
Post by: cmiyc on Jan 10, 2013, 10:14 pm

Terminal??? could you please tell me exactly how to close the ever open ports?

I give directions in the link above.

Terminal is the command line utility. It is available in Applications -> Utilities

The most common issue is the /var/lock section.
Title: Re: Trouble with Mac OS X 10.8.2 and Serial Ports
Post by: kajfjendbo on Jan 10, 2013, 10:49 pm
Sorry, I dont understand.
maybe my english is not good enough or I am an to unexpierenced programmer?