Arduino Forum

Using Arduino => Installation & Troubleshooting => Topic started by: AdamStallaert on Nov 12, 2013, 06:06 am

Title: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: AdamStallaert on Nov 12, 2013, 06:06 am
I was having problems writing to my Arduino Mega (1280) with Arduino 1.0.5 on a clean install of OSX 10.9 Mavericks.

Symptom
When programming, I get the error:
avrdude: stk500_recv(): programmer is not responding

Diagnoses
According to http://www.enttec.com/support-center/kb/article/108-OS_X_Mavericks_(10.9)_-_IMPORTANT (http://www.enttec.com/support-center/kb/article/108-OS_X_Mavericks_(10.9)_-_IMPORTANT) Apple has developed their own FTDI drivers for OSX 10.9. These drivers are problematic.

Solution (as partially provided by the website above)
Type the following commands into the terminal:
    cd /System/Library/Extensions/IOUSBFamily.kext/Contents/PlugIns
    sudo mv AppleUSBFTDI.kext AppleUSBFTDI.disabled
    sudo touch /System/Library/Extensions

Restart your computer

Install the original FTDI Virtual Com Port drivers found here: http://www.ftdichip.com/Drivers/VCP.htm (http://www.ftdichip.com/Drivers/VCP.htm)

Start Arduino and program as you always have.

Disclaimer
This solution solved my problem. If you are having problems since upgrading to OSX 10.9 Mavericks, there is a chance this will be your problem too. If this does not work, I can't help you out. If someone knows a simpler way to do this, please let me know. If this is documented somewhere and I missed it, please let me know.
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: Voltar on Nov 28, 2013, 03:22 am
I had the same problem with my new SparkFun RedBoard and Mavericks. This solution worked perfectly for me. Thanks!
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: nilrog on Nov 28, 2013, 11:47 am
This did not help me unfortunately :(

I can see that the FTDI driver from FTDI is loaded and activated and the board (Nano in this case) blinks a few times, just as it did with Apples own driver. But then it still fails. I have tried installing/uninstalling/rebooting several times but it doesn't help.

Any other suggestions on how to fix this issue?
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: jlefevre1 on Dec 06, 2013, 04:46 pm
Having the same problem. This solution did not work on 2 different Macs. At this point we must consider that Mac Mavericks will be unusable on Arduino. The Arduino home page should list there products as no long compatible with Macintosh until this is fixed. Such a shame. I was really getting into using Arduino products but will have to quit until this is resolved.
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: JulioCastro on Dec 07, 2013, 02:42 am
I have the same issue with Arduino UNO and Maveriks.
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: JulioCastro on Dec 07, 2013, 03:04 am
My problem was a bad USD cable. thanks  :smiley-yell:
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: omgo on Dec 22, 2013, 02:32 pm
Had the same issue with SparkFun RedBoard and Mavericks. This worked perfectly. Thanks heaps!
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: bbyford on Dec 29, 2013, 12:40 pm
On OSX Mavericks and this fix worked like a dream - tested on both Arduino Nano and Duemilianova boards
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: hayduke on Jan 04, 2014, 03:44 am
Thanks for the fix.

This appears to work for my MEGA2560, a couple of Uno Rev3 but still does not recognize any of my Nano Version 3 Arduinos.
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: Frondelicious on Jan 04, 2014, 10:38 am
I am very new at this. I was given a Uno, and in the process of testing the LEDs  I saw the message "avrdude: stk500_recv(): programmer is not responding".  I read the 'Arduino in OS X 10.9 Mavericks - Serial Port Issues' topic in the forums about the problems with Mavericks, and began to follow the instructions. I used Terminal to sudo mv AppleUSBFTDI.kext AppleUSBFTDI.disabled.

I downloaded the Mac_OS_X Installtion Guide.pdf and FTDIUSBSerialDriver_10_3.mpkg and FTDIUSBSerialDriver_10_4_10_5_10_6_10_7.mpkg from FTDI, but could not open or install them because "it is from an unidentified developer".

I would very much appreciate advice on what to do now. I don't know Unix well enough to undo what I did without some help.

I also saw the later posts about  counterfeit chips.
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: wabbitguy on Jan 05, 2014, 03:11 am
I downloaded the Mac_OS_X Installtion Guide.pdf and FTDIUSBSerialDriver_10_3.mpkg and FTDIUSBSerialDriver_10_4_10_5_10_6_10_7.mpkg from FTDI, but could not open or install them because "it is from an unidentified developer".

I would very much appreciate advice on what to do now. I don't know Unix well enough to undo what I did without some help.

I also saw the later posts about  counterfeit chips.


Hold down the CTRL key (or right click on the mpkg) and select OPEN from the popup, then select OPEN that will bypass the gate keeper...:)

Mel
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: Frondelicious on Jan 05, 2014, 09:50 am
Thanks for the reply, Mel. Unfortunately, it didn't fix the problem. I have not been able to upload anything, so far, not even any of the simple examples.

There are also some issues with the LEDs on the Cube. For example, using the Serial Monitor, the 'all red;' command turns all the LEDs off, but the 'all green;' and 'all blue;' work. And sometimes level 1 works and sometimes it has the wrong colour. I had another look at it, and I believe the red is not working at all on level 1. I expect I should look elsewhere in the Forums for these answers.
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: Kula on Jan 07, 2014, 05:55 pm
HI and please help
I performed everything according to the instructions and unfortunately still not working. Does anyone might have some idea what to do. I have only OSX at home and I would like to start learning the Arduino. :(
thanks you in advance for your help
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: Stoni on Jan 09, 2014, 03:48 pm
worked for me!
you saved my day  :)
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: french_fries on Jan 12, 2014, 02:23 pm
I had the same problem with a Sparkfun Redboard
I applied the solution described in this post and it works fine now
Thanks !
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: eliasheuninck on Jan 16, 2014, 04:29 pm
Adam, thanks for the clear explanation, but sadly it didn't work for me :/
Maybe I've been tinkering too much with all kinds of settings and drivers.
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: spage on Jan 16, 2014, 05:07 pm
This procedure fixed my problem on Mac OS X 10.9.1 with Arduino 1.0.5 and an OSEPP Uno R3 Plus

I was brand new to Arduino and was of course very disappointed when I could not get the simple Blink sketch to load.

I searched for quite a while before coming across this post and even then it was with the aid of a colleague

Since this is going to be a problem for anyone with a recent Mac OS it would have been nicer if there was a more prominent way of alerting Mac users. 

Are Apple aware of the driver issue?  Is it an actual problem with the Apple driver or a problem with the way Arduino 1.0.5 is trying to access the driver?  I don't really like regressing the driver so it would be nice to know that someone, somewhere is working on a permanent fix for this...  Do we need to post somewhere else to get Arduino development to take a closer look?

This is the sort of problem that one associates with Windows rather than the Mac!
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: msaglam on Jan 19, 2014, 09:13 am
Hi Adam,

Thank you! This worked for me too. However, I still struggled at first for a few hours due to a bad USB cable. I saw a similar post as well. So for anyone that this doesn't work, please make sure to try it with another USB cable before giving up.
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: timlong on Jan 19, 2014, 03:36 pm
This fix appears to have solved the problem for me, thanks a lot! Are mac going to generate a built in solution with an os update? A lot of people using arduino also use macs...
A solution is required asap - please. See https://discussions.apple.com/message/23717843#23717843
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: twollweber on Feb 05, 2014, 11:08 pm

However, I still struggled at first for a few hours due to a bad USB cable. I saw a similar post as well. So for anyone that this doesn't work, please make sure to try it with another USB cable before giving up.


Hi all,

I just want to back this post! A different cable made my day! Even though the first cable was new (it came with the Nano clone), a much longer old cable made the device available.

Cheers, Thorsten
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: Shiki225 on Mar 29, 2014, 12:09 am
i did everything listed
Solution (as partially provided by the website above)
Type the following commands into the terminal:
   cd /System/Library/Extensions/IOUSBFamily.kext/Contents/PlugIns
   sudo mv AppleUSBFTDI.kext AppleUSBFTDI.disabled
   sudo touch /System/Library/Extensions

Restart your computer

Install the original FTDI Virtual Com Port drivers found here: http://www.ftdichip.com/Drivers/VCP.htm

Start Arduino and program as you always have.

but it does not work, I still get the same problem compiling. Am I installing the right driver? When I visit the link above I couldn't find a 10.9 version in http://www.ftdichip.com/Drivers/VCP.htm

I have both the D2XX and VCP Drivers installed, I have tried them individually installed at a time and it didnt work too.
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: hardest on Apr 05, 2014, 01:39 pm
Same problem, fix with original drivers worked perfectly. REBOOT required.
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: justPaulo on May 04, 2014, 01:33 pm

I was having problems writing to my Arduino Mega (1280) with Arduino 1.0.5 on a clean install of OSX 10.9 Mavericks.
...
Start Arduino and program as you always have.
..


Well it worked for me too, even with my old Arduino board based on a ATMEGA8 chip (2006).
Thanks and congrats for your post.
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: crankster on May 13, 2014, 04:22 am
I thought I would report on how these great tips didn't work for me and the solution that did.
I have a multiwii se v2.5 board (crius copy)  with ftdi interface.
On my Mac, I reloaded the latest ftdi drivers (as described) and rebooted the mac.
I plug in the multiwii se board through the ftdi interface.
I open arduino.
All I kept getting was a list of bluetooth ports but no USB ports.
I then thought a little laterally and checked the actual chipset on the ftdi interface.
I was so obsessed with using the FTDI driver, I never considered that the usb/serial module might have been made by some one else. It uses a Prolific 2305 chip. I hopped over to
http://www.prolific.com.tw/US/ShowPr...id=229&pcid=41
downloaded the correct driver and IT WORKS!!!!!
So, for any mac people using this board and having difficulties getting a com port to show up on their mac under 10.9, , use this driver, NOT the FTDI driver mentioned above. See if that helps you too.
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: danpicko on May 15, 2014, 04:27 pm
I had the same issue with my 3D printer that runs off a Mega 2560.  Removing the Mavericks drivers and reinstalling the FTDI drivers worked a treat.

Just make sure to use the FTDIUSBSerialDriver_10_4_10_5_10_6_10_7 package inside the disk image.

This fix sorted it out for me.  Very happy - thanks a lot, saved me a lot of pain....  :D
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: malkindy on May 17, 2014, 08:50 am
as of today the frustration continue as i am not able to access my arduino, all the posted suggestions to the problem i have tried but no luck :0 is this part of open source pains? i just fro not know what else i can try
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: svhovater on Jun 10, 2014, 01:16 pm
hi folks
Struggled with this for a bit - tried installing the FTDI drivers, as suggested, but no go. I've an UNO R2, and according to the Arduino specs,
The Uno differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip. Instead, it features the Atmega16U2 (Atmega8U2 up to version R2) programmed as a USB-to-serial converter.

So.. I had recently added a USB3 hub..  once I moved the usb from the hub to the mac, voila. I see the Uno serial port again!

cheers
Steve
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: anthonyr on Jun 10, 2014, 07:40 pm
Fixed my issues on OS X 10.9.3 with a Sparkfun Red Board. Thanks!
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: Geoffroy_docq on Jun 12, 2014, 11:14 pm
Hi all,

I had exactly the same issue mac os 10.9.3 : serial port not shown ...
After 2 hours of fight  i finally solved my problem.
I just replaced the usb cable !
Seems that the usb cable provide with the Arduino UNO was the issue.

Hope this can help
Title: Re: Only works the first time!
Post by: SaldivarEngineer on Jun 20, 2014, 06:07 am
Unfortunately, that doesn't work on my Mac, I have Mavericks too and I've taken all day trying to get Arduino Uno with my code and nothing! I NOTICED that only when I've just had to install the IDE the serial port dv/tty. usbmodemfa341 appears, I mean it only works ONCE but when I try to record another code, it disappeared.

Mac OS 10.9.3
Java 7
FTDI installed

I'd thank any help?
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: entur on Jun 20, 2014, 11:04 am
hi friends, have a serial problem :smiley-eek-blue:,

when I try to put the kext in terminal on mac, asking me to comfirme the password but will not let me write to comfirmed ... it can be due?

thanks n sorry for my inglish!!
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: casselli on Aug 06, 2014, 03:50 am
this worked for me thank you, having a hell of a time getting arduino and processing to work together problem seems to be in the line that assigns the connection to be my arduino usb connection. Using old tutorials from o'rielly, bought the arduino/processing tutorials but can't get the arduino and processing sketches to talk to each other. Dropped the baud rate to match the arduino, 9600, loaded the firmata  to my board(using a duemilinova board as that is what came with the tutorial(also using the projbox) thought I would step back and work through the basics, but unfortunately the environment that is used is outdated but have found work arounds. Trying to make this as easy as possible, want to use it for teaching but have run into too many hiccups and find myself distracted by the difficultiesSo frustrating when thinking that processing is for people that have limited or no relationship with code-Translates to HOURS of frustration. Really want to introduce students to processing and then connect to the arduino environment but the frustration I have been experiencing makes it difficult to put together a lesson plan and workflow criteria-too many problems and don't want to be dealing with them in class any suggestions?
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: alvi on Aug 08, 2014, 04:27 pm
Nothing has workded: neither this guide, nor substituting the USB cable...
But I get the problem ONLY with Arduino Robot... no problem with Mega and Due  :~  :~

Alvise
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: Radheya on Aug 21, 2014, 04:23 am
I am also having the same problem apple support is also uselesss please if anyone can I guide me It will be soo nice of you   =(
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: ronaldfw on Aug 23, 2014, 06:07 pm
FWIW, for me simply using a different USB port helped.

MacBook Pro with OSX 10.9.4, Arduino IDE 1.5.7, and Arduino Uno.
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: PixelatedAnalog on Sep 19, 2014, 04:49 am
Awesome. Thanks apple. The solutions listed here do not work. Now I can't program arduino. I could try a usb hub, but really it should work. I hope it's fixed in Yosemite or something?
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: markfickett on Oct 19, 2014, 06:27 pm
Worked for me, thanks!

I actually didn't disable the default drivers, nor restart; I just reinstalled the FTDI drivers from ftdichip.com (http://www.ftdichip.com/Drivers/VCP.htm), restarted the Arduino IDE, and was in business.

I had been having issues with an Arduino LilyPad 328, and with an Arduino Pro Mini 3.3v + FTDI breakout. I'd get a processing.app.SerialException, or errors like "avrdude: stk500_getsync(): not in sync: resp=0x18", and the tx/rx lights on the FTDI breakout wouldn't blink.
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: zootalaws on Oct 25, 2014, 11:53 pm
Having the same problem. This solution did not work on 2 different Macs. At this point we must consider that Mac Mavericks will be unusable on Arduino. The Arduino home page should list there products as no long compatible with Macintosh until this is fixed. Such a shame. I was really getting into using Arduino products but will have to quit until this is resolved.
What a pile of cr@p. I use 4 different arduino models with my Mavericks (and now, Yosemite) equipped Macs and they all worked flawlessly.

At this point we must consider that jlefevre1 isn't really that good with computers and should consult a small child to do things for him.

Such a shame.
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: zootalaws on Oct 26, 2014, 12:07 am
this worked for me thank you, having a hell of a time getting arduino and processing to work together problem seems to be in the line that assigns the connection to be my arduino usb connection. Using old tutorials from o'rielly, bought the arduino/processing tutorials but can't get the arduino and processing sketches to talk to each other. Dropped the baud rate to match the arduino, 9600, loaded the firmata  to my board(using a duemilinova board.... Really want to introduce students to processing and then connect to the arduino environment but the frustration I have been experiencing makes it difficult to put together a lesson plan and workflow criteria-too many problems and don't want to be dealing with them in class any suggestions?
Me too.

There is a mismatch in the TxRx libraries between Processing and Arduino.

I ended up going back to "stable" releases (1.0.6 Arduino, whatever on Processing) then pulling the serial components from inside Arduino and sticking them in Processing and voila! All my problems disappeared.


right click > show package contents on arduino then Contents > resources > java > rxtxcomm.jar and librxtxSerial.jnilib, copy those files into  Processing > contents > resources > java > modes > java > libraries > serial then paste the rxtxcomm.jar in to that folder and then the librxtxSerial.jnilib into the macosx folder. 

If that doesn't work, drop me a line.
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: deanlie on Nov 02, 2014, 11:28 pm
Thanks! I had the same "programmer not responding" error with my OSEPP Uno R3 Plus board. This fixed it and my Uno is now blinking merrily away.
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: sakumatto on Nov 23, 2014, 09:08 pm
I could not get more than 4 USB ports to show. After changing USB cable to other slot it started working on my 10.9 iMac 27"

I had, however, installed numerous driver prior to this trying to figure what was wrong, so I don't know if it was the cable move or one of the driver combined with the cable move ...

Saku
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: gadams999 on Jan 13, 2015, 03:36 am
OP's solution worked for me (Macbook Pro, Mavericks 10.9.5). I had used the IDE 1.0.5 to test with my Sainsmart Nano 3.0. The first one or two downloads worked fine, the the timeout (cannot connect to programmer). Luckily I was at a Maker meetup and pointed this way regarding the FTDI drivers.

Move the Apple kext to the side and installed FTDI VCP drivers and the 1.5.8 IDE. Blink sketch working fine, looking forward to getting my projects going!

Thanks again for the writeup, worked like a charm!
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: kod398 on Jan 15, 2015, 06:30 am
Bad cable!

Went through the entire feed and tried all suggestions. in a last stitch effort i tried a different cable ... & success!!
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: sandyleo26 on Jan 18, 2015, 05:15 am
Thanks, Adams. It works for me as well. I'm using OS 10.9.3. Before I applied your fix, I tried to install the FTDI driver but no luck. Then I followed your fix and a restart then the Blink example works. Thanks a lot.

Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: sandyleo26 on Jan 18, 2015, 05:17 am
Thanks, Adams. It works for me as well. I'm using OS 10.9.3. Before I applied your fix, I tried to install the FTDI driver but no luck. Then I followed your fix and a restart then the Blink example works. Thanks a lot.

Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: ebwinclil on Feb 17, 2015, 10:18 pm
Has anyone out there come across a different solution?  This does not seem to be working for me.  I can get the 1.5.8 IDE to communicate with my Uno, Mega, and Due, but I just purchased 3 Nanos and I can't get any of them running or my lilypad.  I have switched out the USB cable a few times and tried both the mv of the Apple Driver as well as trying to use the Prolific Driver.  I still am getting no recognition of a usb serial port.  If I run ls /dev/tty.* with my Uno attached it reads usbmodem1411 or usbmodem1a121 depending on which USB I use, but with the nano or lilypad attached there is no response. I am using OS 10.9.5 and IDE 1.5.8 with FTDIUSBSerialDriver.kext.
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: ebwinclil on Feb 18, 2015, 12:38 am
Has anyone out there come across a different solution?  This does not seem to be working for me.  I can get the 1.5.8 IDE to communicate with my Uno, Mega, and Due, but I just purchased 3 Nanos and I can't get any of them running or my lilypad.  I have switched out the USB cable a few times and tried both the mv of the Apple Driver as well as trying to use the Prolific Driver.  I still am getting no recognition of a usb serial port.  If I run ls /dev/tty.* with my Uno attached it reads usbmodem1411 or usbmodem1a121 depending on which USB I use, but with the nano or lilypad attached there is no response. I am using OS 10.9.5 and IDE 1.5.8 with FTDIUSBSerialDriver.kext.
Never mind, I contacted the seller and found out that I was dealing with a chinese knock off. 
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: filoifaga on Mar 22, 2015, 10:36 am
For any others who haven't been able to solve this one yet: if, like me, you decided to go with the cheaper chinese kick off arduino clone boards and had problems similar to this one, please check the following forum post, as it solved the problem for me:

http://forum.arduino.cc/index.php?topic=289518.0

And another blog site that explains the whole process really simply for noobs like me:

http://kiguino.moos.io/2014/12/31/how-to-use-arduino-nano-mini-pro-with-CH340G-on-mac-osx-yosemite.html

Actually the dude has even mirrored the relevant driver that solves the problem without having to find it on an all chinese or all russian website!

Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: greenonline on Mar 22, 2015, 11:24 am
For any others who haven't been able to solve this one yet: if, like me, you decided to go with the cheaper chinese kick off arduino clone boards and had problems similar to this one, please check the following forum post, as it solved the problem for me:

http://forum.arduino.cc/index.php?topic=289518.0

And another blog site that explains the whole process really simply for noobs like me:

http://kiguino.moos.io/2014/12/31/how-to-use-arduino-nano-mini-pro-with-CH340G-on-mac-osx-yosemite.html

Actually the dude has even mirrored the relevant driver that solves the problem without having to find it on an all chinese or all russian website!


Yes, I have been struggling for a month or so, and finally realised (after reading http://forum.arduino.cc/index.php?topic=198539.15#msg1720630) that other chips were being used, in lieu of the FTDI chip, for example the Prolific 2305. After inspecting the board with a magnifying glass, I saw that I did not have an FTDI chip in my Chinese clones of an Uno and a Mega, but a CH340G instead.

Once I realised that I found the http://wch.cn/product/CH340.html site, but the Mac driver doesn't appear to be there. After a bit more googling I found the kiguino site. I downloaded the mirrored driver, rebooted the mac, and when I connected the Uno, my MacBook died and restarted with the grey serious error screen and refused to boot. After disconnecting the Uno, the Mac rebooted as normal, so no lasting damage done, but I am a bit wary of trying to plug the clone in again.

Anyway, note that the chip says CH340 on it, but the drivers are CH341. I assume that they are compatible.
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: Casser on Mar 30, 2015, 08:25 am
I tried to use those commands in Terminal I get a message that says :

mv: rename AppleUSBFTDI.kext to AppleUSBFTDI.disabled/AppleUSBFTDI.kext: No such file or directory

I'm really new to this, and have no idea what to do next, any suggestions?
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: purplecow265 on Apr 09, 2015, 12:40 am
Did you try copying and pasting the code from the first post into the terminal?

Also, try a different USB cable just to make sure it's not your cable.
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: migrral on Apr 19, 2015, 01:23 pm
worked for me but had to restart after installing the original driver.
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: raster on May 28, 2015, 04:03 pm
Worked for me. Fixed the issue I was having with a SparkFun RedBoard.
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: freakysid on Jul 17, 2015, 09:14 pm
tried doing the same as stated above but it didnt get my arduino uno to work
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: ankithu on Aug 05, 2015, 07:23 pm
This procedure fixed my problem on Mac OS X 10.9.1 with Arduino 1.0.5 and an OSEPP Uno R3 Plus

I was brand new to Arduino and was of course very disappointed when I could not get the simple Blink sketch to load.

I searched for quite a while before coming across this post and even then it was with the aid of a colleague

Since this is going to be a problem for anyone with a recent Mac OS it would have been nicer if there was a more prominent way of alerting Mac users. 

Are Apple aware of the driver issue?  Is it an actual problem with the Apple driver or a problem with the way Arduino 1.0.5 is trying to access the driver?  I don't really like regressing the driver so it would be nice to know that someone, somewhere is working on a permanent fix for this...  Do we need to post somewhere else to get Arduino development to take a closer look?

This is the sort of problem that one associates with Windows rather than the Mac!
I had the same problem as you and got very mad. Have you tried a new usb cable. It fixed the problem for me it might for you too.
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: muodov on Aug 24, 2015, 09:15 pm
I had the same issue, and the solution was to unplug all USB devices except Arduino, and ensure that RX/TX pins of Arduino are not connected to anything.
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: edster1980 on Sep 11, 2015, 03:33 pm
I had a similar issue where on OSX 10.10 the serial port would not show up on my clone arduino UNO running the ATMEL - MEGA380P chipset with the WH-CH3400 serial chip on it. I tried a few different ways to get it to show in the arduino IDE but to no avail other boards like the eleven boards would show up fine, after following the steps in the first post it finally shows up now with the "wchusbserial1450" listing in port menu.  so thanks to the poster very well done!
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: funkyboodah on Mar 31, 2016, 05:24 am
Hi guys, not sure if this has been solved yet, but I'm having the same problem. Running 10.9.5 on my Mac and my Sparkfun Redboard is not being read... I tried uninstalling the apple drivers and installing the FDTI drivers to no avail. I haven't tried another USB cable, but the Sparkfun cable is 2.0 so I can't imagine how another cable would really help. Anyone have any ideas?
Title: Re: Arduino in OS X 10.9 Mavericks - Serial Port Issues
Post by: mars3D on Mar 31, 2016, 10:54 pm
For any others who haven't been able to solve this one yet: if, like me, you decided to go with the cheaper chinese kick off arduino clone boards and had problems similar to this one, please check the following forum post, as it solved the problem for me:

http://forum.arduino.cc/index.php?topic=289518.0

And another blog site that explains the whole process really simply for noobs like me:

http://kiguino.moos.io/2014/12/31/how-to-use-arduino-nano-mini-pro-with-CH340G-on-mac-osx-yosemite.html

Actually the dude has even mirrored the relevant driver that solves the problem without having to find it on an all chinese or all russian website!


filoifaga, you are a genius! This worked. I tried the original fix, swapping out USB cables, and none of it worked with my El Cheapo UNO boards from eBay. But your solution worked AMAZINGLY!!!