Hi, I have beating my head against the wall all weekend over this. The board is a DccEle - DCcduino Mega 2560 My environment is MAC OSX 10.9.4 When I connect the board, blink (I assume preloaded) does the flashy thing at 1 second intervals - so the basic board functionality works. In the IDE there is no serial port. Looking at System information, I can see the following; USB2.0-Serial: Product ID: 0x7523 Vendor ID: 0x1a86 Version: 2.54 Speed: Up to 12 Mb/sec Location ID: 0xfd130000 / 5 Current Available (mA): 500 Current Required (mA): Unknown (Device has not been configured) My research says it is a HL-340 which is based on the prolific pl2303 chipset.

I have put in pl2303 drivers (in /system/Library/Extensions - after configuring the.plist to add the vender/device (6790,29987) but still and enormous amount of nothing. The system log shows pcscd644: Non-smartcard device launched pcscd Vendor: 0X1A86, Product: 0X7523 whenever the board gets plugged in. Does a 'real' mega 2560 use the same chipset for the serial port. Is it possible that the pcscd daemon sees the card but can't configure it (as a smart card) and it does not allow the pl2303 extension to have a go? I can return the card but after a couple of days on and off trying to get this to work I am starting to get belligerent:-) Note: Something good did happen with all my screwing around.

My Due still works ok and the uno now actually says 'Arduino Uno' in the IDE for the port - which is good when I am developing for both at once. I will break out a windows 7 laptop and see if I have better success - if nothing else I can have a look at the MEGA windows.inf and see if any clues are in there. Next time, please add a link to your product. That clone was cheap! If you paid more than 14 dollars, you paid to much. Search on Ebay for: ch340g mega It uses the CH340 or CH340G or CH341 chip for the usb-serial.

In linux you don't have to do anything, it works right away. For Windows 7, you need a driver from The zip file or the exe file. For the mac, you have bad luck. Perhaps this driver is compatible with the CH340: The official Arduino Mega 2560 needs drivers that are included in the download of the Arduino software.

The CH340G chip is no where near the official Arduino usb-serial chips. I have seen them only in the last few weeks and bought a board with it myself. Okdeki - progress (of sorts). Installed ide on windows-7 laptop. Plugged in card and the drivers configured without me having to do anything - downloaded modified blink and all worked perfectly. Went back to ebay and notice that some of the clone boards are UNO's - with the ch340 chip.

They give a link to two sites one of which has OSX drivers - (It is is Russia and I had a little twitchiness.) Installed that driver (from: and had a port configured. Still have one issue in that I get the following when I send a sketch to the board - but serious progress is being made. BTW - as A test I ran the serial monitor - when I type random crud and send it to the Mega clone, I get the serial lights to flash - so basic comms is occurring! Actually looking at the messages, I think the issue is that because the device name has an imbedded space, AVRdude goes nuts! The actual device is: /dev/tty.wch ch341 USB=RS232 fa1240 Stan Arduino: 1.5.7 (Mac OS X), Board: 'Arduino Mega or Mega 2560, ATmega2560 (Mega 2560)' Sketch uses 1,518 bytes (0%) of program storage space. Maximum is 258,048 bytes.

Global variables use 9 bytes (0%) of dynamic memory, leaving 8,183 bytes for local variables. Maximum is 8,192 bytes. Avrdude: seropen: can't open device '/dev/tty.wch': No such file or directory ioctl('TIOCMGET'): Inappropriate ioctl for device ioctl('TIOCMGET'): Inappropriate ioctl for device avrdude: sersend: write error: Bad file descriptor This report would have more information with 'Show verbose output during compilation' enabled in File Preferences. OK Confirmed it is the command line executed for AVRdude Captured a verbose output and modified the AVRdude line and put rabbit ears around the port e.g /Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avrdude -C/Applications/Arduino.app/Contents/Java/hardware/tools/avr/etc/avrdude.conf -v -v -v -v -patmega2560 -cwiring -P'/dev/tty.wch ch341 USB=RS232 fa1240' -b115200 -D -Uflash:w:/var/folders/g7/cb6lb6l107j81ql0bzjzhjf40000gn/T/build549238769.tmp/Blink.cpp.hex:i Downloaded Blink, reset the mega and all is good. Now to see if I can request a change in the IDE to rabbit ears the AVRdude port line if the port contains imbedded spaces. Hi Peter, Thanks for your guidance over the weekend which enabled me to get the board up and running. I have had a look at the source on github and it would be fairly easy to make the change for OSX to encapsulate the device name in double quotes (Rabbit ears) for either all cases or when there is an imbedded space in the device name.

I have raised an issue for this however am contemplating pulling master and making the change on my own system and see if it works - if it does I can investigate feeding the changed module back to github - never done anything with github so a lot of 'learning' required. Also, I am hoping that the OSX project will build in x-code - like I say I havn't done this before! For the moment however I have a number of workarounds being; 1. Back out the Russian drivers I loaded yesterday - that will be fun!

Load the drivers you pointed me to - What device did it create on your system BTW? Another alternative is to make a script up that will rename the device once I have connected and before I load the IDE - don't know if this will work? Yet another alternative is to make a small shell script up that is specific to the MEGA and points to the existing device and does the AVRDude download. Finally, on the basis that the card mis-represented itself on ebay is to start a fight and return the card and get a refund of the card and the priority paid postage. And then get a real mega! Anyway, once again many thanks for your advice over the weekend. Final Update.

Arduino Mega 2560 Driver For Mac Free

The drivers at work well. In addition some nano's I had ordered arrived and they use the same chipset - the above drivers work with these as well. FWIW, it appears a lot of the Chinese clone boards are using this chipset for the USB comms - suspect it is a cheap chip. Also, I ordered a genuine mega which arrived - and the original seller of the 'dodgy' mega had sent a new board plus a couple of packets of jumper leads to make me happier. Got to stop this obsession - I now have.

1 Uno (Genuine) 3 Nano's (as above) 3 Mega's - one real and two clones 1 Due (and I confess I also have three itsy witsy tiny ones (plug direct into USB and only have a few pins) coming) Stan. Had a problem on OS X Yosemite with CH340G chip. Installed the official driver first - This didn't work, so I tried to manually load the installed kext and noticed this error in the console: 00:43:28.492 com.apple.kextd19: ERROR: invalid signature for wch.usb.usb, will not load After a big of googling found this article - Just to summarise. On Yosemite: 1.

Install the driver 2.

Download the latest Arduino Mega 2560 R3 (COM3) driver for your computer's operating system. All downloads available on this website have been scanned by the latest anti-virus software and are guaranteed to be virus and malware-free. Browse the list below to find the driver that meets your needs. To see more matches, use our custom search engine to. Tech Tip: If you are having trouble deciding which is the right driver, try the. It is a software utility that will find the right driver for you - automatically.

DriverGuide maintains an extensive archive of Windows drivers available for free download. We employ a team from around the world.

They add hundreds of new drivers to our site every day. Having trouble finding the right driver? Try the, or you can and we will find it for you. Overall Rating: (613 ratings, 804 reviews) 149,321 Downloads Submitted Apr 1, 2002 by johnny atkins (DG Member): ' Unzip this file and store it in it own folder.

I had to remove the modem using add/remove in the control panel, then reboot and then use add hardware when it asked for driver i referenced this file. Bingo it worked at last' Device Type: Network Devices Supported OS: Win 2003 Server, Win XP Home, Win XP Pro, Win 2000 Workstation, Win 2000 Server, Win NT 4.0, Win NT 3.51, Win ME, Win 98SE, Win 98, Win 95, Win 3.11 File Size: 666.7 KB File Name. Overall Rating: (189 ratings, 198 reviews) 23,825 Downloads Submitted May 15, 2006 by OnForce Provider #16216 (DG Member): ' Drivers and Utilities Version 5.04 for the 3Com family of network cards. Includes support for the 3C900, 3C905, 3C590, 3C509 network cards. This driver set contains the Dell factory installed drivers for the 3C90x & 3C5x9 series NIC's. (3c905B, 3c905C, 3c509).

Network: 3Com 3c90x Ethernet Controller.' Device Type: Network Devices Supported OS: Win Vista, Win Vista x64, Win 2003 Server, Win XP Home, Win XP Pro, Win 2000 Workstation, Win 2000 Server, Win NT 4.0, Win ME, Win 98SE, Win 98, Win 95 File Version: Version 3Com 3C920 Integrated LAN Release Date: 2002-04-05 File Size: 4.5 MB File Name.

Overall Rating: (89 ratings, 96 reviews) 11,881 Downloads Submitted Jun 28, 2000 by Steve Kudelko (DG Member): ' This driver is easy to use. The documentation is there & you can go into add new hardware wizard (Windows 9x & Windows 2K) or use the setup program (Windows 3x, MS-DOS, OS/2 Warp & Windows NT 4.0). Device Type: Network Devices Supported OS: Win XP Home, Win XP Pro, Win 2000 Workstation, Win 2000 Server, Win ME, Win 98SE, Win 98 File Version: Version 6.3.3.2 Release Date: 2006-01-17 File Size: 4.9 MB File Name.