FFT the signal which read from analog pin through Arduino

[lucbk]

I installed LINX but I did not see the Continuous_Sampling function (only Analog_Read function). I need to set up some parameters like acquisition time and samples to read (similar to LIFA).

If I use the analog read function (1 Chan), the voltage output can't connect to waveform. what am I missing?

[jakkrichs]

Hi Lucbk,

Your topic I have very interesting, so I now same problem with you. I wanna read analog signal through Arduino then process out to spectrum chart by Labview. Now I using Labview 2014 with LINX. I now waiting someone help to this Topic. Please, please help us.

[lucbk]

Hi there, you can send message to me. I will try to share if I know

[jakkrichs]

Dear Lucbk,

Thank you for your kind. I have to read analog signal from gyro sensor MMA7361 with Arduino Auno, aimed for measure the RPM of turbo charger. So I have attach picture of my vi it can see only analog read  without freq wave form. Could you advise please?   

Thank you in advance,

Jakkrich S.

[lucbk]

Hi jakkrichs

My understanding, you can not analyze the spectrum with "Analog Read 1 Chan" Output. Try to build it into an array or use Spectrum analysis tools in "Point by Point" if you want (Signal processing => Point by Point => FFT,...)

You should test with Signal generator first, (for example, generate a sine wave 1V 50Hz then connecting to Arduino pin to read analog and see its spectrum)

[tank0210]

what FFT VI you use?