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Topic: Error "Board at COM4 is not available" when I click on serial monitor. (Read 224 times) previous topic - next topic

moghemv

Hi All,
I am using Lenovo Z500 laptop with Windows 8.1 single langauage 64 bit operating system. When I click on serial monitor, I get a message "Board at COM4 is not available"

Tried google and other instructions on the net but it did not help.

Regards,
M. Moghe

spycatcher2k

Please post the info inline, I'm never going to open an unknown .doc file.

Also, confirm  the correct com port is selected in the tools menu.
Drew.
http://www.uk-pcb.co.uk - My UK Based PCB Fab & Assembly Company
Design & Assembly work undertaken - Arduino repairs & testing - PM for details.

KatyaS

Hi,

You should right click to My Computer, choose Device Manger and expanding item Ports to check the correct Arduino com port. Like below picture the Arduino com port is COM4. After that in Arduino software, choose that com port (COM4) in menu bar Tools -> Serial Port.


moghemv

million thanks friends for quick help, I dont get this option of ports (COM&LTP) in my device manager.

spycatcher2k

Drew.
http://www.uk-pcb.co.uk - My UK Based PCB Fab & Assembly Company
Design & Assembly work undertaken - Arduino repairs & testing - PM for details.

moghemv

Please find screen shots of Device manager as well as Auduino tools, there are no com ports option.

spycatcher2k

Don't post .DOC files - almost no one will open them, too many viruses. Post/attach the actual picture.


Press & hold reset, click upload, when the sketch size shows, let go of the reset button.
Drew.
http://www.uk-pcb.co.uk - My UK Based PCB Fab & Assembly Company
Design & Assembly work undertaken - Arduino repairs & testing - PM for details.

moghemv


moghemv

I am not able to paste in line. I did print screen Ctrl C Ctrl v, etc etc to paste in the message itself.


Ballscrewbob

Nothing showing in ports is usually a driver not installed error or a USB type error.

is it a REAL Mega or a Chinese clone with a CH340 which needs its own driver (google CH340) ?

Have you tried different USB cable and ports or even a different computer ?

Some Arduinos also don't work well with USB 3.0 which your laptop has.
A possible fix for that is to use a USB 2.0 self powered hub attached to the USB 3.0 port.


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 I had nothing to go with in the first place so I used my wonky crystal ball.

spycatcher2k

Drew.
http://www.uk-pcb.co.uk - My UK Based PCB Fab & Assembly Company
Design & Assembly work undertaken - Arduino repairs & testing - PM for details.

moghemv

Dear All,

Thanks for all your Kind help. The solution I choose was, to chuck the Chinese made Arduino and bought a genuine Arduino, this solved all my problems.

Thanks to all :-)

Regards
Mahendra Moghe

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