From 505520d83b59e74cb567a3a1e6e55d910faec522 Mon Sep 17 00:00:00 2001
From: Finlay Davidson <finlay.davidson@coderclass.nl>
Date: Sun, 28 May 2023 03:03:49 +0200
Subject: arduinofft: Move to submodule, define srqt_internal externally

---
 .../arduinoFFT-develop/Examples/FFT_03/FFT_03.ino  | 114 ---------------------
 1 file changed, 114 deletions(-)
 delete mode 100644 src/libs/arduinoFFT-develop/Examples/FFT_03/FFT_03.ino

(limited to 'src/libs/arduinoFFT-develop/Examples/FFT_03')

diff --git a/src/libs/arduinoFFT-develop/Examples/FFT_03/FFT_03.ino b/src/libs/arduinoFFT-develop/Examples/FFT_03/FFT_03.ino
deleted file mode 100644
index ee2b2946..00000000
--- a/src/libs/arduinoFFT-develop/Examples/FFT_03/FFT_03.ino
+++ /dev/null
@@ -1,114 +0,0 @@
-/*
-
-	Example of use of the FFT libray to compute FFT for a signal sampled through the ADC.
-  
-  Copyright (C) 2018 Enrique Condés and Ragnar Ranøyen Homb
-  Copyright (C) 2020 Bim Overbohm (header-only, template, speed improvements)
-
-	This program is free software: you can redistribute it and/or modify
-	it under the terms of the GNU General Public License as published by
-	the Free Software Foundation, either version 3 of the License, or
-	(at your option) any later version.
-
-	This program is distributed in the hope that it will be useful,
-	but WITHOUT ANY WARRANTY; without even the implied warranty of
-	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-	GNU General Public License for more details.
-
-	You should have received a copy of the GNU General Public License
-	along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-*/
-
-#include "arduinoFFT.h"
-
-/*
-These values can be changed in order to evaluate the functions
-*/
-#define CHANNEL A0
-const uint16_t samples = 64; //This value MUST ALWAYS be a power of 2
-const double samplingFrequency = 100; //Hz, must be less than 10000 due to ADC
-unsigned int sampling_period_us;
-unsigned long microseconds;
-
-/*
-These are the input and output vectors
-Input vectors receive computed results from FFT
-*/
-double vReal[samples];
-double vImag[samples];
-
-/* Create FFT object */
-ArduinoFFT<double> FFT = ArduinoFFT<double>(vReal, vImag, samples, samplingFrequency);
-
-#define SCL_INDEX 0x00
-#define SCL_TIME 0x01
-#define SCL_FREQUENCY 0x02
-#define SCL_PLOT 0x03
-
-void setup()
-{
-  sampling_period_us = round(1000000*(1.0/samplingFrequency));
-  Serial.begin(115200);
-  Serial.println("Ready");
-}
-
-void loop()
-{
-  /*SAMPLING*/
-  microseconds = micros();
-  for(int i=0; i<samples; i++)
-  {
-      vReal[i] = analogRead(CHANNEL);
-      vImag[i] = 0;
-      while(micros() - microseconds < sampling_period_us){
-        //empty loop
-      }
-      microseconds += sampling_period_us;
-  }
-  /* Print the results of the sampling according to time */
-  Serial.println("Data:");
-  PrintVector(vReal, samples, SCL_TIME);
-  FFT.windowing(FFTWindow::Hamming, FFTDirection::Forward);	/* Weigh data */
-  Serial.println("Weighed data:");
-  PrintVector(vReal, samples, SCL_TIME);
-  FFT.compute(FFTDirection::Forward); /* Compute FFT */
-  Serial.println("Computed Real values:");
-  PrintVector(vReal, samples, SCL_INDEX);
-  Serial.println("Computed Imaginary values:");
-  PrintVector(vImag, samples, SCL_INDEX);
-  FFT.complexToMagnitude(); /* Compute magnitudes */
-  Serial.println("Computed magnitudes:");
-  PrintVector(vReal, (samples >> 1), SCL_FREQUENCY);
-  double x = FFT.majorPeak();
-  Serial.println(x, 6); //Print out what frequency is the most dominant.
-  while(1); /* Run Once */
-  // delay(2000); /* Repeat after delay */
-}
-
-void PrintVector(double *vData, uint16_t bufferSize, uint8_t scaleType)
-{
-  for (uint16_t i = 0; i < bufferSize; i++)
-  {
-    double abscissa;
-    /* Print abscissa value */
-    switch (scaleType)
-    {
-      case SCL_INDEX:
-        abscissa = (i * 1.0);
-	break;
-      case SCL_TIME:
-        abscissa = ((i * 1.0) / samplingFrequency);
-	break;
-      case SCL_FREQUENCY:
-        abscissa = ((i * 1.0 * samplingFrequency) / samples);
-	break;
-    }
-    Serial.print(abscissa, 6);
-    if(scaleType==SCL_FREQUENCY)
-      Serial.print("Hz");
-    Serial.print(" ");
-    Serial.println(vData[i], 4);
-  }
-  Serial.println();
-}
-- 
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