helper_functions.ino

// Parameter 1 = number of pixels in strip,  neopixel stick has 8
// Parameter 2 = pin number (most are valid)
// Parameter 3 = pixel type flags, add together as needed:
//   NEO_RGB     Pixels are wired for RGB bitstream
//   NEO_GRB     Pixels are wired for GRB bitstream, correct for neopixel stick
//   NEO_KHZ400  400 KHz bitstream (e.g. FLORA pixels)
//   NEO_KHZ800  800 KHz bitstream (e.g. High Density LED strip), correct for neopixel stick
Adafruit_NeoPixel strip = Adafruit_NeoPixel(NEOPIXEL_COUNT, NEOPIXEL_DATA_PIN, NEO_GRB + NEO_KHZ800);


// Define the color codes by name to make it easier to call later on
uint32_t red = strip.Color(128, 0, 0);
uint32_t green = strip.Color(0, 128, 0);
uint32_t yellow = strip.Color(128, 128, 0);
uint32_t blue = strip.Color(0, 0, 128);
uint32_t black = strip.Color(0, 0, 0);

// Fill the dots one after the other with a color
void colorWipe(uint32_t c, uint8_t wait) {
  for(uint16_t i=0; i<strip.numPixels(); i++) {
    strip.setPixelColor(i, c);
    strip.show();
    delay(wait);
  }
}


float mapfloat(float x, float in_min, float in_max, float out_min, float out_max)
{
 return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
}