Hello Guys,

I am having trouble using Visual Micro extension on Visual studio, it complies fine, but when I run it it gives an error of COM3 access denied my specific configuration is as follows
Ide: Arduino 1.6
Board: Arduino Uno
Serial Port COM3 also tried changing the port to com9
tried both settings With always use programmer for upload and without Always use programmer for upload and still getting the same error

I am using Visual Studio 2015, it takes long time to compile first and gives me this error

Error during upload using programmer

avrdude: Version 6.0.1, compiled on Apr 15 2015 at 19:59:58
         Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
         Copyright (c) 2007-2009 Joerg Wunsch

         System wide configuration file is "C:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf"

         Using Port                    : COM9
         Using Programmer              : stk500v1
         Overriding Baud Rate          : 19200

Upload timed out waiting for a response

The uploader returned an error

if I re run it again it will give

Error during upload using programmer

avrdude: Version 6.0.1, compiled on Apr 15 2015 at 19:59:58
         Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
         Copyright (c) 2007-2009 Joerg Wunsch

         System wide configuration file is "C:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf"

         Using Port                    : COM9
         Using Programmer              : stk500v1
         Overriding Baud Rate          : 19200
avrdude: ser_open(): can't open device "\\.\COM9": Access is denied.



avrdude done.  Thank you.


The uploader returned an error

if I unchecked the always use Programmer or uploading option it it gives
Binary sketch size: 3,010 bytes (used 9% of a 32,256 byte maximum) (0.56 secs)
Minimum Memory Usage: 279 bytes (14% of a 2048 byte maximum)
Uploading to I/O board using 'COM9'
Uploader started for board Arduino/Genuino Uno
Upload method will be: bootloader
Uploading via Bootloader
Flushing the serial port
Access to the port 'COM9' is denied.


any suggestion would be helpful and appreciated
Thank you

Hi,

Thanks for the clear info.

For usb upload you do not want to upload using a programmer.

This error would normally mean that the com port is open in another application such as the serial monitor in the arduino ide.

You have said you switch between com3 and com9 but what is the correct port that appears when you connect your board?

Does the upload work in the arduino ide? If so using which port?

Thank you for quick replay,I am sorry yes I forgot to mention it works on Arduino IDE on Port COM3 and worked as well on COM 9 when I changed it. I made sure that all other IDE are closed as well(so I closed Arduino IDE incenses, visual studio and reset the port again)

Right now I have it configured it back to COM3 port  and it is working on the Arduino IDE, when I reopen Visual studio , unchecked use Programmer for Upload, and runs and working now  on VS 2015 :)

Thank you very much Your advice helped a lot and now I am running Smoothly