Indicator.ino

#define INDICATOR_PIN 13
#define INDICATOR_NUMPIXELS 16
#define BUZZER_PIN 14

Adafruit_NeoPixel indicator(INDICATOR_NUMPIXELS, INDICATOR_PIN, NEO_GRB + NEO_KHZ800);

uint32_t indicatorColor0 = indicator.Color(240, 20, 15);
uint32_t indicatorColor1 = indicator.Color(230, 30, 10);
uint32_t indicatorColor2 = indicator.Color(220, 40, 5);
uint32_t indicatorColor3 = indicator.Color(210, 50, 0);
uint32_t indicatorColor4 = indicator.Color(200, 60, 0);
uint32_t indicatorColor5 = indicator.Color(190, 70, 0);
uint32_t indicatorColor6 = indicator.Color(180, 80, 0);
uint32_t indicatorColor7 = indicator.Color(170, 90, 0);
uint32_t indicatorColor8 = indicator.Color(160, 100, 0);
uint32_t indicatorColor9 = indicator.Color(150, 110, 0);
uint32_t indicatorColor10 = indicator.Color(140, 120, 0);
uint32_t indicatorColor11 = indicator.Color(130, 130, 0);
uint32_t indicatorColor12 = indicator.Color(120, 140, 0);
uint32_t indicatorColor13 = indicator.Color(110, 150, 5);
uint32_t indicatorColor14 = indicator.Color(100, 160, 10);
uint32_t indicatorColor15 = indicator.Color(90, 170, 15);
uint32_t indicatorColorX = indicator.Color(0, 0, 0);

uint32_t indicator_colors[16] = {
  indicatorColor0, indicatorColor1, indicatorColor2, indicatorColor3,
  indicatorColor4, indicatorColor5, indicatorColor6, indicatorColor7,
  indicatorColor8, indicatorColor9, indicatorColor10, indicatorColor11,
  indicatorColor12, indicatorColor13, indicatorColor14, indicatorColor15
};

void setupIndicatorColors() {
  indicator.begin();
  indicator.clear();
  indicator.setBrightness(15);
  pinMode(BUZZER_PIN, OUTPUT);
}

void indicatorDisplay(float hf) {

  int pixels = (hf - 1.4) / 0.1;

  if (hf == 0.0) {
    blinkOrange();
    return;
  }

  if (hf > 5) {
    setAllPixels(indicatorColor15);
    return;
  }

  if (pixels < 0) {
    blinkRed();
    return;
  }

  int firstBlack = 0;
  while (indicator.getPixelColor(firstBlack) != 0) {
    firstBlack++;
  }

  if (pixels > INDICATOR_NUMPIXELS - 1) {
    pixels = INDICATOR_NUMPIXELS - 1;
  }

  Serial.println(pixels);
  Serial.println(firstBlack);

  if (firstBlack - 1 <= pixels) {
    for (int i = 0; i <= pixels; i++) {
      indicator.setPixelColor(i, indicator_colors[i]);
      indicator.show();
      delay(200);
    }
  } else {
    for (int i = firstBlack; i > pixels; i--) {
      indicator.setPixelColor(i, indicatorColorX);
      indicator.show();
      delay(200);
    }
  }
}

void blinkOrange() {
  for (int i = 0; i < 10; i++) {
    setAllPixels(indicatorColorX);
    delay(300);
    setAllPixels(indicatorColor7);
    delay(300);
  }
}

void blinkRed() {
  for (int i = 0; i < 10; i++) {
    tone(BUZZER_PIN, 1000);
    setAllPixels(indicatorColor0);
    delay(300);
    noTone(BUZZER_PIN);
    setAllPixels(indicatorColorX);
    delay(300);
    setAllPixels(indicatorColor0);
  }
}

void blinkBlue() {
  setBlue();
  delay(250);
  setBlank();
  delay(250);
}

void setAllPixels(int color) {
  for (int i = 0; i < INDICATOR_NUMPIXELS; i++) {
    indicator.setPixelColor(i, color);
  }
  indicator.show();
}

void setBlue() {
  setAllPixels(indicator.Color(40, 90, 150));
}

void setBlank() {
  setAllPixels(indicatorColorX);
}