My senses arduino beginners
how to display the value of the series at the library arduinoFFT adc with input from the sensor noise on analog pin 0?
please help
fft_adc.pde (1.53 KB)
That example does not display the result. Instead it uses Serial.write() to send the output to another program. You need to rewrite the output statements as a loop that use Serial.print().
Example:
/*
fft_test_sine
example sketch for testing the fft library.
This generates a simple sine wave data set
of frequency f, transforms it, calculates
and prints the amplitude of the transform.
*/
// do #defines BEFORE #includes
#define LIN_OUT 1 // use the lin output function
#define FFT_N 32 // set to 32 point fft
#include <FFT.h> // include the library
void setup() {
Serial.begin(115200); // use the serial port
}
void loop() {
int i,k;
float f1=2,f2=5; //two input frequencies
for (i = 0 ; i < 32 ; i++) { // create 32 samples
k=1000*sin(2*PI*f1*i/32.)+500.*sin(2*PI*f2*i/32.);
fft_input[2*i] = k; // put real data into even bins
fft_input[2*i+1] = 0; // set odd bins to 0
}
fft_reorder(); // reorder the data before doing the fft
fft_run(); // process the data in the fft
fft_mag_lin(); // take the output of the fft
// print the frequency index and amplitudes
for (i=0; i<16; i++) {
Serial.print(i);
Serial.print(" ");
Serial.println(fft_lin_out[i]);
}
Serial.println("Done");
while(1); //hang here
}
sorry mister I do not understand the answer you
if i give a voice input from the sensors on the arduino uno A0
how do I have to make fft program that can generate a serial value
then the result will I show in labview
explanation please master
I'm not sure about the FFT Library, I just purchased a "SpeakUp" Click Board and patch it in through the 12 output pins as binary in to my Due and calculate the bits. I have 180 voice commands in it so far.
I don't know about LabVIEW. If you want to know the signals coming from the sensor, you should use an oscilloscope.
the core of my question, how to generate serial value of the FFT program on arduino library.
with input from the acoustic wave sensors sound through A0 pin arduino
Thank you so much if it was willing to help me