Pages: [1] 2   Go Down
Author Topic: Com1 already in use  (Read 2362 times)
0 Members and 1 Guest are viewing this topic.
Offline Offline
Newbie
*
Karma: 0
Posts: 9
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

I just got a brand new arduino mega 2560 and I haven't uploaded anything onto it yet but I just tried to upload something and an error message came up saying that com1 was already in use. So I pressed the reset button and it came up with the same message when I tried uploading it again! Please help! I am a first time arduino user!
Logged

Offline Offline
Newbie
*
Karma: 0
Posts: 9
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

And by com1 what is that refuring to?
Logged

0
Offline Offline
Tesla Member
***
Karma: 145
Posts: 9636
Arduino rocks
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

In the IDE go to tools > serial port and select an unused com port to use with the IDE. When the arduino is connected to the pc USB port, it should be recognized as a com port.
Logged

Consider the daffodil. And while you're doing that, I'll be over here, looking through your stuff.   smiley-cool

Canada
Offline Offline
Sr. Member
****
Karma: 0
Posts: 318
Sometimes teaching, always learning,
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

On my computer (windows 7 netbook) I had to disable the built in bluetooth because it was keeping the com ports busy.
Logged


Offline Offline
Newbie
*
Karma: 0
Posts: 9
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

I went to serial ports but com1 is the only one
Logged

Offline Offline
Newbie
*
Karma: 0
Posts: 9
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

How did you disable the built in Bluetooth?
Logged

Offline Offline
Newbie
*
Karma: 0
Posts: 9
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Please help! What type of stuff could block the arduino from using the com1 port?
Logged

0
Offline Offline
Tesla Member
***
Karma: 145
Posts: 9636
Arduino rocks
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

If you are using windows and your board does not use the FTDI USB serial chip, you will probably need to install the special serial port drivers for your board. Check the IDE "getting started" help files.
Logged

Consider the daffodil. And while you're doing that, I'll be over here, looking through your stuff.   smiley-cool

Offline Offline
Newbie
*
Karma: 0
Posts: 9
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

What is the ftdi USB serial chip? And how can I tell if I have it
Logged

Offline Offline
Edison Member
*
Karma: 19
Posts: 1041
Arduino rocks
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

http://arduino.cc/en/Guide/Windows
Logged

Offline Offline
Newbie
*
Karma: 0
Posts: 9
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

I checked on my computer and there is only com1 is there a way to add more?
Logged

Seattle, WA USA
Online Online
Brattain Member
*****
Karma: 616
Posts: 49439
Seattle, WA USA
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Unplug the Arduino. Start the IDE. Look at the list of serial ports available. Close the IDE>

Connect the Arduino. Start the IDE. Look at the list of serial ports available.

Are the two lists the same? If not, the Arduino is connected to one of the serial ports that is not on both lists.

If the lists are the same, you did not install the driver for the Arduino correctly.

Quote
is there a way to add more?
Yes. Install the driver for the Arduino correctly.
Logged

Offline Offline
Newbie
*
Karma: 0
Posts: 9
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

That's the part I don't get how do you install the driver? Sorry I am new with this.
Logged

Offline Offline
Edison Member
*
Karma: 19
Posts: 1041
Arduino rocks
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

That's the part I don't get how do you install the driver? Sorry I am new with this.

Did you see the link I posted? It's for the mega2560 as well as the uno.
Logged

Offline Offline
Newbie
*
Karma: 0
Posts: 9
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

But it doesn't show how to do the mega. Do you just use the UNO steps for the mega?
Logged

Pages: [1] 2   Go Up
Jump to: