NodeMCU to WS2813 using FastLED

Son_laLumi_re2.ino

/*
 * SoundDetection.ino
 * An introductory example to process data from a sound sensor using NodeMCU ESP8266 12E
 * 
 * 2020-05-20 armw v0.1 initial DRAFT
 * 
 * Operations:
 * The WS2813 is a 3-wire chipset that combines the LED and its controller in a single
 * package.
 * 
 * Method:
 * setup()  - run once
 * loop()   - run many
 * SoundDetectionISR() - interrupt handler
 * 
 * Notes:
 * Since the program has only one dedicated processing requirement (i.e. convert sound
 * to visualization instructions), there is no consideration for any parallel activity
 * using alternate scheme for timing delays.
 * 
 * NodeMCU pinout
 * #define PIN_WIRE_SDA (4)
 * #define PIN_WIRE_SCL (5)
 * 
 * static const uint8_t SDA = PIN_WIRE_SDA;
 * static const uint8_t SCL = PIN_WIRE_SCL;
 * 
 * static const uint8_t LED_BUILTIN = 16;
 * static const uint8_t BUILTIN_LED = 16;     // on-board LED
 * static const uint8_t D0   = 16;
 * static const uint8_t D1   = 5;
 * static const uint8_t D2   = 4;             // on-board LED
 * static const uint8_t D3   = 0;
 * static const uint8_t D4   = 2;
 * static const uint8_t D5   = 14;
 * static const uint8_t D6   = 12;
 * static const uint8_t D7   = 13;
 * static const uint8_t D8   = 15;
 * static const uint8_t D9   = 3;
 * static const uint8_t D10 = 1;
 * 
 * WS2813 pinout
 * 4  DIN ->      <- 3  DO
 * 5  GND ->      <- 2  VDD
 * 6  BIN ->      <- 1  VCC
 * 
 * References:
 * https://learn.sparkfun.com/tutorials/interactive-led-music-visualizer/all
 * https://github.com/bartlettmic/SparkFun-RGB-LED-Music-Sound-Visualizer-Arduino-Code/blob/master/code%20math.md
 * https://www.elecrow.com/download/WS2813_LED_Datasheet.pdf
 * http://fastled.io/
 * https://github.com/FastLED/FastLED
 * https://github.com/FastLED/FastLED/wiki/ESP8266-notes
 */
 
#define FASTLED_ESP8266_NODEMCU_PIN_ORDER// MUST precede the following statement; see EP8266 notes
#include <FastLED.h>

                                      // NodeMCU ESP8266 12E board parameters
const int pinLED = LED_BUILTIN;       // GPIO16, D0, USER, WAKE
                                      // WS2813 strip LED parameters
#define LED_TYPE  WS2813
#define COLOR_ORDER GRB
#define NUM_LEDS  300                 // number of LEDs in strip
#define pinDATA   D4                  // GPIO5
CRGB myLEDs[NUM_LEDS];                // instantiate entity for strip

void setup()
{

  pinMode(pinLED, OUTPUT);            // nominal status using default LED
  delay(1000);                        // just to ensure warm-up
}

void loop()
{


  myLEDs[0] = CRGB::Red;
  FastLED.show();
  delay(3000);
  myLEDs[0] = CRGB::Black;
  FastLED.show();
  delay(1000);

}