Hi everyone ! I just got a arduino uno card today , but I can't use the examples programs , I get this error :
avrdude: ser_open(): can't open device "\.\COM1"
I've search a lot , I know it's pretty common , it has something to do with the drivers , but I have nothing like what is given in the solutions .
I'm under windows 8.1 .
When I plug the arduino card the "on" led is green and the "L" led start blinking .
But windows doesn't ask anything about installing drivers , I have nothing .
Actually it asks the first time , I just clicked yes but now it doesn't ask anymore and I can't find anything .
When I look into the device manager , I don't have a Ports category , and I don't have an "other devices"
category .
Does your Arduino UNO serial port show up under Tools->Port? Make sure that entry goes away when you unplug the Arduino and comes back when you plug it back in.
it does not . when I plug the arduino card the port thing is still in light grey ... Well , I didn't tell everything , it is actually a clone , the funduino uno R3 , but it's supposed to e totally arduino compatible ...
kasmurdanto:
it does not . when I plug the arduino card the port thing is still in light grey ... Well , I didn't tell everything , it is actually a clone , the funduino uno R3 , but it's supposed to e totally arduino compatible ...
Well, it isn't.
Lately the funduino has been shipped with a CH340 USB-to-UART bridge, instead of the Atmega8U2 that the official Arduino (and a few clones) have.
Take a look at what chip is being used for USB-to-UART in your board and make sure you have the proper drivers for it. Keep in mind that the CH340 drivers are not shipped with the official IDE distribution.
Ok thank you for your answer , At least now I know why it doesn't work ... I can't find what you're talking about because I'm not sure what it is , I'm a pure newbie in this world , I tought it would be simpler because I program since some years , but it is not , I didn't even compile my first program ...
Well I found a non-official arduino IDE , automatically installing the drivers , this one : http://forum.arduino.cc/index.php?topic=118440.0
After following instruction to make windows 8 accepting unsigned drivers (I hate windows 8 everyday a little more) , I tried again an upload , and now a new error :
"Serial port 'COM3' already in use" , I can't fix it but it seems better , at least it's a new error ...
OK ... I don't know how , I don't know why , but after some voodoos rituals it did work . Seriously , the port thing was probably a problem of physical connection , my usb cable is pretty bad .
I seriously recommend the IDE I used for everyone in the same case than me , fighting with windows 8 and total arduino compatibility . Thank you for your help , I'm going to do a few other test .