Failed to open serial port COM3 to communicate with board Uno.

조회 수: 326(최근 30일)
kim poh chiew
kim poh chiew 2015년 11월 26일
댓글: Anubha GUPTA 2021년 5월 20일
Encounter this error when i tried to connect my arduino board with my matlab :Failed to open serial port COM3 to communicate with board Uno. Make sure there is no other MATLAB arduino object for this board. For troubleshooting, see Arduino Hardware Troubleshooting.
Can anyone solve this?
  댓글 수: 9
Anubha GUPTA
Anubha GUPTA 2021년 5월 20일
works great! thanks!

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답변(4개)

HAMZA ABBASI
HAMZA ABBASI 2018년 6월 24일
clear object name like (clear a) will not work.... write clear all statement in the first line of code
  댓글 수: 1
Pathmashantha Senanayaka
Pathmashantha Senanayaka 2020년 12월 30일
hellow everyone. I want to make serial communication with arduino mega using matlab guide. Can enyone Please show me example code.

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Aamil  Patel
Aamil Patel 2016년 3월 5일
Failed to open serial port COM3 to communicate with board Uno. Make sure there is no other MATLAB arduino object for this board. For troubleshooting, see Arduino Hardware Troubleshooting.
this is the error message i get
  댓글 수: 1
PRAPTI GANGULY
PRAPTI GANGULY 2016년 3월 21일
I got the same error message. Make sure there is no other object in the workspace. type 'clear' to clear the workspace and then try running the code.

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Yehia Khalifa
Yehia Khalifa 2017년 10월 11일
Same issue here. Any solution?
  댓글 수: 2

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Amaresh A.R
Amaresh A.R 2016년 5월 20일
Hello everyone..
when i am trying to connect arduino which is connected on COM2 i get the below error..
"Failed to open serial port COM2 to communicate with board Uno. Make sure there is no other MATLAB arduino object for this board. For troubleshooting, see Arduino Hardware Troubleshooting."
how to overcome this problem... please help TYIA..

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