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Topic: Connect via USB with Arduino Duo (Read 322 times) previous topic - next topic


I am setting up the Web Editor to connect with an Arduino DUO board.  I have downloaded a plugin and installed it. I get an error message "unable to find board" when I try to connect with the board. I do have the yellow led turned on.
     Need advice,  thanks
                   Kirk Rensmeyer


I am setting up the Web Editor to connect with an Arduino DUO board.
I'm not familiar with the Arduino DUO. Do you maybe mean the Arduino Due?

I get an error message "unable to find board" when I try to connect with the board.
I'm not familiar with this error message. Would you mind posting a screen shot? If you click the "Reply" button here, you will see an "Attachments and other settings" link that will allow you to make the attachment.


The most common reason for that error is that a part of the installation may have been missed.
The posts at the top of this forum section cover those aspects.

Other reasons can often be down to lack of permissions in one way or another.
Be those general user permissions or network permissions.

Some other factors below.
Could you take a few moments to Learn How To Use The Forum.
It will help you get the best out of the forum in the future.

  • Your OS and version can be valuable information, please include it along with extra security you are using.
  • Always list the version of the IDE you are using and the board version if applicable.
  • How to insert an image into your post. ( Thanks Robin2 )
  • Add your sketch where applicable but please use CODE TAGS ( </> )
  • Add a SCHEMATIC were needed even if it is hand drawn
  • Add working links to any specific hardware as needed (NOT links to similar items)
  • Remember that the people trying to help cannot see your problem so give as much information as you can

  • Ensure you have FULLY inserted the USB cables.
  • Check you have a COMMON GROUND where required. ( Thanks Perry)
  • Where possible use USB 2.0 ports or a USB 2.0 POWERED HUB to rule out USB 3.0 issues.
  • Try other computers where possible.
  • Try other USB leads where possible.
  • You may not have the correct driver installed. CH340/341 or CP2102
  • There may be a problem with the board check your wiring first.
  • Remove any items connected to pins 0 and 1.

  • Close any other serial programs before opening the IDE.
  • Ensure you turn off any additional security / antivirus just to test.
  • There may be a problem with the PC try RESTARTING it.
  • You may be selecting the wrong COM port.
  • Avoid cloud/network based installations where possible OR ensure your Network/Cloud software is RUNNING.
  • Clear your browsers CACHE.
  • Close the IDE before using any other serial programs.
  • Preferably install IDE's as ADMINISTRATOR or your OS equivalent
It may not be the answer you were looking for but its the one I am giving based on either experience, educated guess, google or the fact that you gave nothing to go with in the first place so I used my wonky crystal ball.

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