Serial Port Problem - doesnt communicate between applications

Projects Interfacing w/ Software on the Computer
1

Hi !

So I'm currently having a problem with my new pc who seems to be unable to use two applications communicating by the same port.

I am not a programmer or anything like that, I'm just an artist who's doing some project using Arduino and Max MSP.

Usually, I would be able to send data from Max MSP to Arduino or from Arduino to Max MSP. I never had any issue with my old pc. However, with this new one, I cannot use the two applications at the same time. I can programm the Arduino to receive some data from Max, but I cannot open the appliction and look at the Serial Monitor what have been sent. And when programming, well I can only open one at the time cuz the other will send an error message.

I tried a serial splitter online (FabulaTech), but it doesn't seem to work.

Does anyone can help me with that ? What am I missing ?

2

I do that all the time but I use Linux. I even keep each function on a different screen that is a click away or I can show all screens.

3

What 2 applications? You mention Max MSP but what is the other?

In my experience it is normal for the first application to open and lock the serial port so that no other application can also open it. If 2 applications opened the same port, the communications would be confused and would not work correctly.

4

The other is symply the Arduino Application. I want to see what is being write on the serial monitor.

I tried even the simple thing like this video shows : https://www.youtube.com/watch?v=68L-WHh3Ows&t=160s
but it aint working....

5

Which version of the Arduino IDE are you using ? With the older 1.X it was possible to have multiple instances of the serial console connected to different ports/applications.

6

Arduino IDE 2.3.2

7

Oh, you mean the Arduino IDE? Before you just said "Arduino" so thought you meant the Arduino board.

I'm surprised that the guy in that video was able to upload the code at all while Max MSP was using the serial port connected to the Arduino.

8

Yes the IDE.

I'm surprised that the guy in that video was able to upload the code at all while Max MSP was using the serial port connected to the Arduino.

I don't know, it used to work for me. So you're telling me that if you tried to replicate what is being shown in the video, it wouldn't work for you either ?
How do you use the IDE and Max?
I don't want to send data from the two application, I just want to sent data from one to another and being able to see what it was send and how the other one translate it.
It is frustrating not being able to work with the two ^^'

9

I have never used Max MSP.

If I have time over the next few days I will see if I can replicate your problem.

Can you get Max MSP to receive text data from the Arduino and display it somehow? Then you would not need to use Serial Monitor.

10

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