I recently received 4 arduino UNO clones in the mail that I ordered off ebay: (http://www.ebay.com/itm/161863547083?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT). I have spent a few hours now trying to install the correct drivers for the CH340G USB to serial chip. I have tried everything that I have found on all fourms. I found a great article on how to do it at: 0Xcf.com is for sale | HugeDomains , but even when i followed all instructions and comments, nothing seemed to work with these little guys. Whenever I plug them in, the red "ON" light illuminates, and the green "L" led blinks non stop but I can not get the board to respond to anything. My IDE returns the error of "avrdude: ser_open(): can't open device "/dev/cu.wch": No such file or directory
ioctl("TIOCMGET"): Inappropriate ioctl for device".
Is there anything I am doing wrong? If so please help! These boards are so cool and really dont feel like returning them, but if I have to, I will.
jkkicks:
Is there anything I am doing wrong? If so please help! These boards are so cool and really dont feel like returning them, but if I have to, I will.
Try contacting the vendor's technical support. Maybe they can help you. After all, they took your money.
I also have one of these boards. It works fine. The blinking signal of your Arduino board shows the normal behaviour of the board.
Are you using Windows? What hardware-ID does the USB-SERIAL chip show up in the Windows Device Manager? My shows: "USB\VID_1A86&PID_7523&REV_0254".
I'm using the CH341 driver from this site: Aktuelle Treiber für Seriell-zu-USB-Adapter HL-340 | Homepage von Jens Bretschneider (ZIP file with 158.59 KB)
I also had the problem that on an older PC the USB connection didn't work on some of the USB-ports of the PC. It only worked fine on the front side USB ports, but it didn't work on the rear side ports.
I have now a new PC where it works on all ports, USB 2.0 as well as USB 3.0.
So try all USB ports, and also try different PCs if you can.
Hope that helps!