I am trying to setup a rig with my arduino and a ADXL335 accelerometer to measure vibratory frequencies of some DC ERM pancake motors. I'd like to accomplish this by measuring the analog voltage from the X, Y, Z directions of the accelerometer and then convert this voltage to frequency using FFT analysis or something similar.
I have the Arduino toolkit installed which has greatly helped me code in Labview. Unfortunately when it comes to using the Arduino Analog Read Pin Vi which outputs voltage, I can't connect this directly to either FFT analysis VI or the Spectrum Analysis Vi with the Power Spectrum selected.
In both cases I get a mismatch error saying that the source is Double 64-bit real precision not the same as the sink Double 64 bit real 1-D array.
I see it has to do something with how the Analog Read Pin Vi is outputting the Voltage as a form of array, but confused.
Here is what I got: