Delete pico_FFT_BandScope.ino

pico_FFT_BandScope.ino

@@ -1,135 +0,0 @@
-/*
-pico FFT Band Scope 2022/12/15 JR3XNW
-  Library to add
-  arduinoFFT.h
-  Wire.h
-  U8g2lib.h
-*/
-
-#include 
-#include 
-#include "arduinoFFT.h"
-
-#define I_IN 26  //I-Input pins
-#define Q_IN 27  //Q-Input pins 
-
-#define PX1 63  //Positive frequency screen (Q) origin 62
-#define PY1 42  //Bottom edge of spectrum screen
-#define PY2 56
-#define SAMPLES 256  //Must be a power of 2
-#define WFrow 12
-
-U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, /* reset=*/U8X8_PIN_NONE); 
-
-arduinoFFT FFT = arduinoFFT();
-
-double vReal[SAMPLES];
-double vImag[SAMPLES];
-
-byte DSdata[256];
-byte WFdata[WFrow][128];
-
-void setup() {
-  pinMode(25, OUTPUT);      // pico built-in LED
-  Serial.begin(115200);
-  analogReadResolution(12);  // Set ADC full scale to 12 bits
-  u8g2.begin();
-  u8g2.setFont(u8g2_font_6x10_tf);
-  u8g2.setDrawColor(1);
-  u8g2.setFontPosTop();  // The upper left corner is used as the character position reference.
-  u8g2.clearBuffer();
-  u8g2.drawStr(0, 0, "Band Scope v0.1");
-  u8g2.sendBuffer();
-  delay(1000); 
-
-}
- 
-void loop() {
-    digitalWrite(25, HIGH);  // Built-in LED lights up during sampling 
-
-    /*SAMPLING*/
-    for(int i=0;  i< SAMPLES; i++)
-    {
-        vReal[i] = (analogRead(I_IN) - 2048) * 3.3 / 4096.0;  //
-        vImag[i] = (analogRead(Q_IN) - 2048) * 3.3 / 4096.0;  //
-    }
-    digitalWrite(25, LOW);
-
-    /*FFT*/
-    FFT.Windowing(vReal, SAMPLES, FFT_WIN_TYP_HAMMING, FFT_FORWARD);
-    FFT.Windowing(vImag, SAMPLES, FFT_WIN_TYP_HAMMING, FFT_FORWARD); 
-    FFT.Compute(vReal, vImag, SAMPLES, FFT_REVERSE);
-    FFT.ComplexToMagnitude(vReal, vImag, SAMPLES);
-    
-    u8g2.clearBuffer();   // Screen buffer clear
-    showScope();       // Spectrum Display
-    showGraphics();         // Scale line and other indications
-    u8g2.sendBuffer();    // 
-
-    delay(1);  //Repeat the process every second OR:
-    
-}
-
-void showScope() {  // Spectrum Display
-  int d, d1, d2;
-  
-  for (int xi = 1; xi < 64; xi++) {  // Positive frequency spectrum display
-    d1 = barLength(vReal[xi*2]);
-    d2 = barLength(vImag[xi*2+1]);
-    d = sqrt(d1 * d1 + d2 * d2);
-    u8g2.drawVLine(xi + 64 , PY1 - d, d);  
-  }
-  for (int xi = 64; xi < 128; xi++) { // Negative frequency spectrum display
-    d1 = barLength(vReal[xi*2]); 
-    d2 = barLength(vImag[xi*2+1]);
-    d = sqrt(d1 * d1 + d2 * d2);
-    u8g2.drawVLine(xi - 64 , PY1 - d, d); 
-  }
-}
-
-int barLength(double d) {  // Calculate the length of the graph
-  float fy;
-  int y;
-
-  fy = 14.0 * (log10(d) + 3.3);  //
-  y = fy;
-  y = constrain(y, 0, 42);  // Cut off upper and lower limits
-
-  /*For Test*/
-  Serial.print(d, 4);
-  Serial.print(", ");
-  Serial.print(fy);
-  Serial.print(", ");
-  Serial.println(y);
-  
-  return y;
-}
-
-void showGraphics() {  // Modifying Graphs
-  // area demarcation line
-  u8g2.drawHLine(0, PY1, 128);  // lower end of the spectrum
-  u8g2.drawHLine(0, 55, 128);  // Lower end line for waterfall
-
-  // Frequency scale (horizontal axis)
-  u8g2.drawBox(PX1 - 24, PY2, 2, 2);  // Positive Frequency 10k
-  u8g2.drawBox(PX1 - 46, PY2, 2, 2);  // Positive Frequency 20k
-
-  u8g2.drawBox(PX1, PY2, 2, 2);       // Negative frequency 0k
-  u8g2.drawBox(PX1 + 22, PY2, 2, 2);  // Negative frequency 10k
-  u8g2.drawBox(PX1 + 45, PY2, 2, 2);  // Negative frequency 20k
-
-  u8g2.setFont(u8g2_font_micro_tr);  // Small font(3x5)
-  u8g2.drawStr(9, 59, "-20k");       // Negative frequency display
-  u8g2.drawStr(32, 58, "-10k");
-
-  u8g2.drawStr(63, 58, "0");  // Positive Frequency
-  u8g2.drawStr(81, 58, "10k");
-  u8g2.drawStr(105, 58, "20k");
- 
-  // Dummy display for future use
-  u8g2.setFont(u8g_font_unifont); //u8g2_font_t0_16_mr
-  char str[20] = {"-Band Scope-"};
-  byte x = u8g2.getStrWidth(str);
-  u8g2.drawStr(64-(x/2), -1, str);
-
-}