BOARD AT COM 3 NOT AVAILABLE

Using Arduino IDE 1.x
1

Hii anybody,

I am new in Arduino.

I have problem that i could not open the Serial Monitor in Arduino.

The message is Board at COM3 not available.

I can upload Code to arduino board easyly but could not open Serial Monitor.

I include some picture.

Please help me

Thanks so much

arduino problem 2.png
arduino problem 2.png1806×1032 26.9 KB

arduino problem.png
arduino problem.png1806×1032 20.7 KB

2

Can't help you, but which Arduino are you using?

3

phanduc wrote:

I have problem that i could not open the Serial Monitor in Arduino.
The message is Board at COM3 not available.
I can upload Code to arduino board easyly but could not open Serial Monitor.

I am having same problem. I can not even upload the sketch. As I mentioned before some how the com port change from 3 to 4. TOOLS -> PORT is greyed out,

OS Windows 10
Board Adafruit Feather M0 (Native USP Port)