NI USB LABVIEW to c++

[limavolt]

Hi,

I am a rookie in labview but I have a project, to get data (sound) from NI USB, then find the peak of the signal in which frequency.

after that I have to send the value of the amplitude to the bluetooth.

I want to use labview until find the peak of the signal (because easier using labview), after that I will use C++ to send the value to the bluetooth.

Is it possible?

Thank you

[Yamaeda]

Compile the C++ program into a .net assembly and call the functions from a .net node in LV.

/Y

[limavolt]

Thank you Yamaeda.
If I do it like that. So the "main" is in the labview?

Can I "include"the labview program to c++ program?

[MrHappyAsthma · Accepted solution]

---

@limavolt wrote:

Hi,

I am a rookie in labview but I have a project, to get data (sound) from NI USB, then find the peak of the signal in which frequency.

after that I have to send the value of the amplitude to the bluetooth.

I want to use labview until find the peak of the signal (because easier using labview), after that I will use C++ to send the value to the bluetooth.

Is it possible?

Thank you

---

Yes this is definitely possible.

I would ask (aside from being new to LabVIEW), why not just do the bluetooth communication in LabVIEW as well?  Unless there are some kind of C++ libraries that you cannot live without, it should be easy enough to do this all in LabVIEW (in most cases).

But yes, you have a few ways to call C++ code from within a LabVIEW application or vice versa.  To call it from within LabVIEW, I would make a DLL out of your C++ code.  If you want the main code to be C++ based, you will likely use ActiveX or a LabVIEW built DLL. 

References to help get your started:

For LabVIEW calls within C++:  http://www.ni.com/white-paper/5719/en/

For C++ calls within LabVIEW: http://www.ni.com/white-paper/4877/en/

EDIT:

Heck, if you really wanted to be crude you could just write two applications and communicate via TCP.  You have many options 😄

[limavolt]

Thank you for your information,

I have try to send the information to the bluetooth, but unfortunetly the communication have some protocol which do not writen well (someone else did the hardware) and there is a C++ program which can communicate with this device.