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13/3/16 9:01 p.m.How to use cheap Chinese Arduinos that come with with CH340G / … (Windows & Mac OS-X) · Personal blog by Konstantin Gredeskoul
Page 1 of 16http://kig.re/2014/12/31/how-to-use-arduino-nano-mini-pro-with-CH340G-on-mac-osx-yosemite.html
How To Use Cheap ChineseArduinos That Come With WithCH340G / CH341G Serial/USBChip (Windows & Mac OS-X)Posted on Wednesday, 31 Dec 2014
Updated Nov 22, 2015 with the new signed driver for OS-XEl Capitan and Yosemite.Updated Jan 9, 2016 with Windows Drivers.
My golden rule is that if something took me longer than 15minutes to @gure out, then it's worth documenting in a tinyblog post so that it would save time to others, just like manyother similar posts saved me million hours by providingsimple clear instructions.
Introduction – What Is CH340G?(/images/nano-ch340g-bottom.jpg)Recent versions of cheap Chineseclones of Arduino boards
(http://www.ebay.com/itm/381019048475) have been comingwith a different USB/Serial chip, which replaces the usualFTDI. I read somewhere that licensing costs of FTDI make itprohibitive to companies selling boards for as little as $3, so Iassume this is the main motivation. To be honest, as long as Ican talk to my Arduino and buy it for $3 a piece, who cares? :)
Below you'll @nd links to drivers for both Windows and Mac tomake these work. Please leave a comment, if it worked ordidn't work for you, especially if you had to do anything
13/3/16 9:01 p.m.How to use cheap Chinese Arduinos that come with with CH340G / … (Windows & Mac OS-X) · Personal blog by Konstantin Gredeskoul
Page 2 of 16http://kig.re/2014/12/31/how-to-use-arduino-nano-mini-pro-with-CH340G-on-mac-osx-yosemite.html
special or hacky to make it work :)
WindowsA fully signed drivers for Windows can be found below:
2011 Driver version 3.3.2011.11 for Windows 7(http://catalog.update.microsoft.com/v7/site/ScopedViewRedirect.aspx?updateid=032a878e-8ca0-40d2-b7b1-936640b0eecb)2014 Driver version 3.4.2014.8 for Windows 8+(http://www.arduined.eu/ch340-windows-8-driver-download/)
Mac OS-XMac OS-X El Capitan(Added: Nov 22, 2015)
Many instructions down below were written for the old driver,which was not signed, and therefore was not working out ofthe box on OS-X Yosemite and El Capitan. The latest driverappears to be signed, and should work out the box. The newdriver is here: CH34x_Install.zip (111Kb)(/downloads/CH34x_Install.zip).
Acknowledgements: thanks to Björn's Techblog([http://blog.sengotta.net/signed-mac-os-driver-for-winchiphead-ch340-serial-bridge/) for posting the driver.
Inside the driver is a brief README with the followinginstructions:
Driver READMECH34X USB-SERIAL DRIVER INSTALLATION INSTRUCTIONSVersion: V1.0 Copyright (C) Jiangsu Qinheng Co., Ltd. SupportSystem: OSX 10.9 and above
13/3/16 9:01 p.m.How to use cheap Chinese Arduinos that come with with CH340G / … (Windows & Mac OS-X) · Personal blog by Konstantin Gredeskoul
Page 3 of 16http://kig.re/2014/12/31/how-to-use-arduino-nano-mini-pro-with-CH340G-on-mac-osx-yosemite.html
Installation Process: * Extract the contents of the zip @le to alocal installation directory * Double-click CH34x_Install.pkg *Install according to the installation on procedure * Restartafter @nishing installing
After the installation is completed, you will @nd serial devicein the device list(/dev/tty.wchusbserial*), and you can accessit by serial tools.
If you can’t @nd the serial port then you can follow the stepsbelow:
1. Open terminal and type ‘ls /dev/tty*’ ande see is theredevice like tty.wchusbserial;
2. Open ‘System Report’->Hardware->USB, on the right side“USB Device Tree” there will be device named “Vendor-Speci@c Device” and check if the Current is normal. If thesteps upper don’t work at all, please try to install thepackage again.
Note: Please enter System Preferences ➜ Security & Privacy➜ General, below the title "Allow apps downloaded from:" youshould choose the choice 2 ➜ "Mac App Store and identi@eddevelopers" so that our driver will work normally.
Older DriverThis older version requires some hacking in order to get it towork. I am leaving instructions just in case someone needs it,or the new driver does not work for someone.
Download The DriverThere are two main sites that people mention in thediscussions about the driver:
Chinese company that developed it:http://www.wch.cn/downloads.php?
13/3/16 9:01 p.m.How to use cheap Chinese Arduinos that come with with CH340G / … (Windows & Mac OS-X) · Personal blog by Konstantin Gredeskoul
Page 4 of 16http://kig.re/2014/12/31/how-to-use-arduino-nano-mini-pro-with-CH340G-on-mac-osx-yosemite.html
name=pro&proid=178(http://www.wch.cn/downloads.php?name=pro&proid=178)
This driver appears newer than on the second link,and is from Dec 2013.Note: for me that site took a long long time to load,and then it took forever to download this tiny driver,so I put up a copy here CH341SER_MAC.ZIP(256Kb) (/downloads/CH341SER_MAC.ZIP), sothat you don't have to wait. Hopefully they won't goafter me for mirroring their driver :)
Second site is the Russian company that sells the USBprogrammer based on this chip:http://www.5v.ru/ch340g.htm(http://www.5v.ru/ch340g.htm) but this site only has anolder version of the driver, from 2012, so I do notrecommend downloading it.
(/images/nano-ch340g-top.jpg)
Pre-InstallationNote: the following pre-installation steps are onlyrequired on the two most recent versions of OS-X Yosemiteand El Capitan. It is because the driver is not signed properlyfrom Apple's perspective. We are waiting on the developer toupdate the driver so that these pre-installation steps are nolonger needed.
OS-X El Capitan Steps (Only For The OlderDriver!)These are not needed for the newer driver above.
Reboot and press ⌘-R immediately after the chime toenter Recovery Mode
13/3/16 9:01 p.m.How to use cheap Chinese Arduinos that come with with CH340G / … (Windows & Mac OS-X) · Personal blog by Konstantin Gredeskoul
Page 5 of 16http://kig.re/2014/12/31/how-to-use-arduino-nano-mini-pro-with-CH340G-on-mac-osx-yosemite.html
Open Terminal from the recovery moderun the command csrutilenable--withoutkextReboot.
Acknowledgements: thanks to this post (http://tzapu.com/2015/09/24/making-ch340-ch341-serial-adapters-work-under-el-capitan-os-x/) for these instructions.
OS-X Yosemite StepsOpen Terminal Application (it's located in/Application/Utilities) and type this command once yousee a prompt:sudonvramboot-args="kext-dev-mode=1"
Reboot.
Acknowledgements: see this post (http://www.cindori.org/enabling-trim-on-os-x-yosemite/) if you wish to know more details.
InstallationDownload the driver from here: CH341SER_MAC.ZIP(256Kb) (/downloads/CH341SER_MAC.ZIP)Double click the ZIP @le do unzip itOpen the folder ~/Downloads/CH341SER_MACRun installer found in that folderRestart when asked.
UsageIf the driver properly loaded, you should see the device in you/dev folder (this is for advanced command-line users of OSXonly). On my machine it was called/dev/cu.wchusbserial1441140
This port is showing up correctly in Arduino 1.0.6 and Arduino1.5.8.
13/3/16 9:01 p.m.How to use cheap Chinese Arduinos that come with with CH340G / … (Windows & Mac OS-X) · Personal blog by Konstantin Gredeskoul
Page 6 of 16http://kig.re/2014/12/31/how-to-use-arduino-nano-mini-pro-with-CH340G-on-mac-osx-yosemite.html
However, if you are using the Eclipse Plugin, it is not smartenough to list this port in the list of available serial ports(either in project properties, or in the serial monitor). You willhave to type the entire thing yourself:/dev/cu.wchusbserial1441140 and then Eclipse can
upload your sketch.
That's it! You should be ready to use the drivers and the board.
ReferencesArduino Forums (http://forum.arduino.cc/index.php?topic=261375.0)http://www.5v.ru/ch340g.htm(http://www.5v.ru/ch340g.htm)http://www.wch.cn/downloads.php?name=pro&proid=178(http://www.wch.cn/downloads.php?name=pro&proid=178)http://www.cindori.org/enabling-trim-on-os-x-yosemite/(http://www.cindori.org/enabling-trim-on-os-x-yosemite/)http://www.arduined.eu/ch340-windows-8-driver-download/ (http://www.arduined.eu/ch340-windows-8-driver-download/)http://catalog.update.microsoft.com/v7/site/ScopedViewRedirect.aspx?updateid=032a878e-8ca0-40d2-b7b1-936640b0eecb(http://catalog.update.microsoft.com/v7/site/ScopedViewRedirect.aspx?updateid=032a878e-8ca0-40d2-b7b1-936640b0eecb)
Posted on Wednesday, 31 Dec 2014
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13/3/16 9:01 p.m.How to use cheap Chinese Arduinos that come with with CH340G / … (Windows & Mac OS-X) · Personal blog by Konstantin Gredeskoul
Page 7 of 16http://kig.re/2014/12/31/how-to-use-arduino-nano-mini-pro-with-CH340G-on-mac-osx-yosemite.html
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• Reply •
jasonturcotte • 9 months ago
Great! Thanks for posting this! Worked for me. 2△ ▽
• Reply •
Adam Potts • 10 months ago
THANK YOU! This is exactly what I needed. I thought Ibought a bunch of junk because nothing would show upunder my Port menu. You get to be my favorite persontoday.
2△ ▽
• Reply •
Dan Todd • a year ago
just saved me a ton of time and effort. Thanks. 2△ ▽
• Reply •
Konstantin Gredeskoul • a year ago> Dan Todd
Thanks for the comment! Glad this was helpful. 1△ ▽
Chongkai Jiang • 3 months ago
Thanks so much for saving my life after I have struggled fora couple of weeks!!! I'm on OSX El Capitan and the newdriver works like a charm. Later on I would think beforeupdating my OS :)
Recommend ♥ 11
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13/3/16 9:01 p.m.How to use cheap Chinese Arduinos that come with with CH340G / … (Windows & Mac OS-X) · Personal blog by Konstantin Gredeskoul
Page 8 of 16http://kig.re/2014/12/31/how-to-use-arduino-nano-mini-pro-with-CH340G-on-mac-osx-yosemite.html
• Reply •updating my OS :)
1△ ▽
• Reply •
Felix Kipper • 3 months ago
THAAAAANK YOUUUU! Greetings from Germany 1△ ▽
• Reply •
Erik Buene • 3 months ago
Awesome! Life saving :) 1△ ▽
• Reply •
Ari Kontiainen • 3 months ago
Thank you very much! 1△ ▽
• Reply •
Rob Morrill • 3 months ago
Great that you're posting this kind of thing, but it would havebeen helpful to break it down into idiot-proof terms forinexperienced people like me. I don't understand any of theitems in "Usage," (dev folder, port, Eclipse plugin, etc.). I'mtrying to use the Mbot with students. So frustrating. Againthough, thanks for taking the time to post this.
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• Reply •
kigster • 3 months agoMod > Rob Morrill
Feel free to reach out to me personally if you needsome clarification for you and your students; You canreach me at kigster AT gmail.com.
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• Reply •
Meredith Field • 2 months ago> kigster
I do no understand any of this either. I am newto it all and trying to teach my son. I have theultimate robot kit same company as the botalso trying to learn arduino and I can not getthese channels things to come up on mycomputer at all. Any way I could get someclarification? I can not get the above to work.I have a Mac that runs with el captan. thanks. i have tried the old driver, the new andthe "sengotta" link you mention below beforeI found this blog. Do I need to try and removesomething I have already done?
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13/3/16 9:01 p.m.How to use cheap Chinese Arduinos that come with with CH340G / … (Windows & Mac OS-X) · Personal blog by Konstantin Gredeskoul
Page 9 of 16http://kig.re/2014/12/31/how-to-use-arduino-nano-mini-pro-with-CH340G-on-mac-osx-yosemite.html
• Reply •
Alex Telfar • 3 months ago
thank you!! 1△ ▽
• Reply •
Wanula Dreaming • 3 months ago
thanks ! 1△ ▽
• Reply •
David Hoshor • 3 months ago
The CH340 CH340G driver works with El Capitan 10.11.2 !The "Whoohoo New Driver!" link worked for me when afterApple upgraded my MacBook Pro to 10.11.2 yesterday, myArduino Nano 3.0 clones with the CH340G chip stoppedworking. Thank you, thank you, thank you!
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• Reply •
J.Teigland • 3 months ago
yyyyayyyy works like a wet dream :P 1△ ▽
• Reply •
Douglas • 3 months ago
Thanks! I just spent the best part of an hour trying variousdrivers before I found this site. After trying the driver youlinked to I had both my Nano's up and running withinminutes. Much appreciated.
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• Reply •
giacomo892 • 3 months ago
I get a kernel panic as soon I plug the arduino on El Capitan10.11.1 The same board work very well under windows (even on VMremoving the usbserial.kext on osx) and linux !What can be wrong?
Thanks 1△ ▽
• Reply •
kigster • 3 months agoMod > giacomo892
When you say "it works under Windows" – do youmean another hardware machine? If it forces KernelPanic on Mac, I wonder if this is at the hardwarelevel. Also - try to plug the board directly into theMac, instead of using a USB hub. Also – tryrebooting your Mac with the board inserted.
1△ ▽
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13/3/16 9:01 p.m.How to use cheap Chinese Arduinos that come with with CH340G / … (Windows & Mac OS-X) · Personal blog by Konstantin Gredeskoul
Page 10 of 16http://kig.re/2014/12/31/how-to-use-arduino-nano-mini-pro-with-CH340G-on-mac-osx-yosemite.html
• Reply • 1△ ▽
• Reply •
Victor Manuel • 3 months ago
Many thank. This post was really helpful. it work for mi whitthe driver CH34x_Install.zip Using a mac book pro retina. Thank.
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• Reply •
kusmi • 4 months ago
It looks like this guy got a signed driver for El Capitan fromwhc:http://blog.sengotta.net/signe...I have not tested it yet - so please be careful!
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• Reply •
Ben Simms • 4 months ago> kusmi
Just took the gamble and it paid off :) Just deployedmy script to my Arduino Nano fine :) Thanks Kusmifor the heads up!
1△ ▽
• Reply •
kigster • 4 months agoMod > Ben Simms
Awesome! I also installed it, removed the "--without kext" hack and it seems to work.
I've updated this post to reflect this info. 1△ ▽
• Reply •
Thomas Kilian • 4 months ago
As mentioned I had contacted wch and got immediatefeedback (as of 2015-10-21) from the new developer (theother one had left). So he told that he would expect todeliver a new (and signed) driver within 2 weeks. Ok so,that's now 4 weeks. If everybody who's working with ElCapitan could send a complaint via the sales channel(Amazon has a customer feedback) this would probablyincrease the pressure.
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• Reply •
Gary White • 5 months ago
Like everyone else I searched for hours before arriving hereand this page got me up and running in 5 minutes. Thankyou ever so much!
1△ ▽
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13/3/16 9:01 p.m.How to use cheap Chinese Arduinos that come with with CH340G / … (Windows & Mac OS-X) · Personal blog by Konstantin Gredeskoul
Page 11 of 16http://kig.re/2014/12/31/how-to-use-arduino-nano-mini-pro-with-CH340G-on-mac-osx-yosemite.html
• Reply •
jacobvalenta • 6 months ago
Thank you, first time with a 'duino, this was very helpful! 1△ ▽
• Reply •
Horai • 7 months ago
For official signed Windows drivers, they are at Microsoft'sUpdate Catalog site:
http://catalog.update.microsof... 1△ ▽
• Reply •
kigster • 4 months agoMod > Horai
Thanks! I will add that to the post. △ ▽
• Reply •
Thomas Lum • 2 days ago
Thank you so much for posting this! You got my Mega upand running on my PC and my Mega and Genuine Unorunning on my Mac. I cannot believe I searched and tried somany useless "solutions" before finding your tiny blog post.
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• Reply •
Pave • 7 days ago
So many positive reactions, so I must do something wrong.Downloaded the newest file, tried others too, installed it andrebooted my macbook with el capitan. In terminal I cannotfind it and in system preferences/usb there is no such thingeither. Have overread something? What did I do wrong
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• Reply •
Fiftyseven • 20 days ago
Using a cheap CH340G on OSX with El Capitan on a late2009 Macbook Pro with USB 2.0 and THIS WORKS!
Thank you thank you thank you :D △ ▽
• Reply •
Yi Liu • 21 days ago
Great instruction. I really like your rule: "if something tookme longer than 15 minutes to figure out, then it's worthdocumenting in a tiny blog post." Thanks for your efforts!
△ ▽
carrie • 22 days ago
can you please help me step by step? My son got a
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13/3/16 9:01 p.m.How to use cheap Chinese Arduinos that come with with CH340G / … (Windows & Mac OS-X) · Personal blog by Konstantin Gredeskoul
Page 12 of 16http://kig.re/2014/12/31/how-to-use-arduino-nano-mini-pro-with-CH340G-on-mac-osx-yosemite.html
• Reply •
redboard kit for christmas and i am trying to help him do it. ihave been on the stupid %*^*%**@%(%@ apple mac with elcapital for 3 hours now trying to down the driver or whateverit is to make this work. I have found your blog, but then idon't know how to go forward as the instruction book givesstep by step instructions for arduino. help!!
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• Reply •
Apurv Jawle • a month ago
see more
Console output on El Capitlan 10.11.2, after installing newdriver. Arduino Nano. I dont see any vendor specific USB inHardware after driver installation. Any ideas?
** I have tried everything in the comments section already.
2/9/16 11:36:48.000 AM kernel[0]: 000246.078233HS01@14100000:AppleUSB20XHCIPort::resetAndCreateDevice: failed tocreate device, disabling port
2/9/16 11:36:48.000 AM kernel[0]: 000246.078257HS01@14100000: AppleUSBHostPort::resetGated: retryingenumeration in 100 ms
2/9/16 11:36:48.000 AM kernel[0]: 000246.412577HS01@14100000:AppleUSB20XHCIPort::resetAndCreateDevice: failed tocreate device, disabling port
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• Reply •
Tyla-joe Connett • a month ago
may i link to this page on my website? △ ▽
• Reply •
kigster • a month agoMod > Tyla-joe Connett
Of course :) △ ▽
• Reply •
bin • a month ago
really thank a lot! △ ▽
mm1 • a month ago
Possible issues with latest Mac OS 10.11.3?
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13/3/16 9:01 p.m.How to use cheap Chinese Arduinos that come with with CH340G / … (Windows & Mac OS-X) · Personal blog by Konstantin Gredeskoul
Page 13 of 16http://kig.re/2014/12/31/how-to-use-arduino-nano-mini-pro-with-CH340G-on-mac-osx-yosemite.html
• Reply •
Possible issues with latest Mac OS 10.11.3?
First of all, thanks for writing this post, it's been very helpfuland the new driver has been working well ... until recently.When I plug in a Nano w ch340 chip, the machinecrashes/reboots immediately. No problems if I just plug inthe cable, or when using it for other devices. I've upgradedto 10.11.3, but I'm not sure if the issues started at the sametime.
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• Reply •
kigster • a month agoMod > mm1
Have you tried another nano, or do you just haveone? If this problem persists with more than oneboard, it is likely to be a software issue. But thiscould be a hardware issue, and the only way to findout is to test with another nano first.
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• Reply •
mm1 • a month ago> kigster
I rewired my project and reinstalled the driver,and it's working again. Not sure which onedid the trick.
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• Reply •
Dan McCreary • 2 months ago
Thanks! Makes our job teaching with Arduino a lot easier! △ ▽
• Reply •
Eoin Campbell • 2 months ago
Does anyone know how to get an ESPDuionrunning/recognised on the Arduino app , please?(1.6.7) I'vebeen trying for a week...
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• Reply •
Eoin Campbell • 2 months ago
Worked for me! Many MANY thanks for the support! ;~) △ ▽
• Reply •
Falux-Bkk • 2 months ago
Cheers, I owe you a beer or 5 ;) △ ▽
Miha Susteric • 2 months ago
Hey i still cant get it working... It worked like a charm on mymacbook air, but cant get it working on retina 2013. What
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13/3/16 9:01 p.m.How to use cheap Chinese Arduinos that come with with CH340G / … (Windows & Mac OS-X) · Personal blog by Konstantin Gredeskoul
Page 14 of 16http://kig.re/2014/12/31/how-to-use-arduino-nano-mini-pro-with-CH340G-on-mac-osx-yosemite.html
• Reply •
macbook air, but cant get it working on retina 2013. Whatarduino suit are you guys using . I have 1.6.7. Thanks in advance!
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• Reply •
kigster • 2 months agoMod > Miha Susteric
Can you give more details? What version of OS-Xyou are on? What driver are you installing? Does itsucceed? Did you reboot? When you boot and thenconnect the board via a USB cable directly to yourMacBook Pro, then open Terminal, and run thiscommand "ls -alrt /dev/cu.wsh*" (remove doublequotes) what do you see? If you see something thatlooks like `/dev/cu.wchusbserial24120` it is probablyworking just fine. If the output is different (i.e. blank)when you unplug the board, most likely the driver isworking.
So what do you use to upload the sketch to theboard? Arduino IDE? Eclipse? Something else? Doyou see the port in Arduino IDE?
Have you tried more than one board? Sometimes aboard can be defective.
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• Reply •
Miha Susteric • 2 months ago> kigster
I'm running El Capitan 10.11.2. I tried with thesigned one and old unsigned one. I enabledcsrutil and rebooted.
ls -alrt /dev/cu.wsh*
ls: /dev/cu.wsh*: No such file or directory
I'm using Arduino IDE, and i have tried morethan one board, including ones that workedon Yosemite just fine and all the boards workon windows, so that can't be a problem.
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Meredith Field • 2 months ago
> Miha Susteric
i am running on the 10.11.2 as welland I am having the same issues. Ifyou have any developments will youplease share?
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13/3/16 9:01 p.m.How to use cheap Chinese Arduinos that come with with CH340G / … (Windows & Mac OS-X) · Personal blog by Konstantin Gredeskoul
Page 15 of 16http://kig.re/2014/12/31/how-to-use-arduino-nano-mini-pro-with-CH340G-on-mac-osx-yosemite.html
• Reply •please share?
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• Reply •
kigster • 2 months ago
Mod > Meredith Field
Another thing you can try is this:
- disconnect the card- Open application called "Console" bysearching for it in spotlight - Make sure that on the left "AllMessages" is selected- press the "Clear Display" button inthe navbar.- now connect your Arduino- you should start seeing somemessages appear, once the card isconnected. It's possible you'll seeerrors. Copy what you see afterrefresh, and paste it here.
Thanks! △ ▽
• Reply •
Meredith Field • 2 months ago
see more
> kigster
1/16/16 9:52:24.064 AMcom.apple.kextd[46]: kext-dev-modeallowing invalid signature -670620xFFFFFFFFFFFEFA0A for kext"/System/Library/Extensions/usb.kext"
1/16/16 9:52:24.341 AMcom.apple.kextd[46]: kext signaturefailure override allowing invalidsignature -670620xFFFFFFFFFFFEFA0A for kext"/System/Library/Extensions/usb.kext"
1/16/16 9:52:24.000 AM kernel[0]:OSMetaClass: Kext wch.usb.usb classwch_usb is a duplicate;kextcom.wch.usbserial already has a classby that name.
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All original material © 2016 by Konstantin Gredeskoul, all rights reserved.
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• Reply •
Meredith Field • 2 months ago
> Meredith Field
Thanks for taking a look at this. △ ▽
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