Serial port 'COM3' already in use

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rickztahone
Posts: 18
Joined: Mon Jul 11, 2016 1:39 pm

Serial port 'COM3' already in use

Post by rickztahone »

Hello all. I have gotten down how to upload code to my RA. However, I was uploading some code from the wizard and it did not finish loading after over 10 minutes. I figured something had gone wrong and I hit the "quit" option in the
Arduino menu. I tried uploading it again a few minutes later after having powered down and I get a:

"serial port 'COM3' already in use. Try quitting any programs that may be using it"

How do I fix this? Everything had been working fine before this. How do I quit from another program when the only place I am running it is from the Arduino screen? I have been using COM3 all along as well so that can't be it.
rimai
Posts: 12881
Joined: Fri Mar 18, 2011 6:47 pm

Re: Serial port 'COM3' already in use

Post by rimai »

Did you try rebooting your computer?
Roberto.
rickztahone
Posts: 18
Joined: Mon Jul 11, 2016 1:39 pm

Re: Serial port 'COM3' already in use

Post by rickztahone »

Thanks Roberto. Reboot worked
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cosmith71
Posts: 1437
Joined: Fri Mar 29, 2013 3:51 pm
Location: Oklahoma City

Re: Serial port 'COM3' already in use

Post by cosmith71 »

FYI, I get this kind of error occasionally. If it let it sit for a few seconds and try again it usually works.
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