Wemos ESP8266 D1 Mini RGB led blink

esp8266-rgb-blink.ino

/* ***********************************************************
 *                      Global Constants                     *
 *                    Hardware Definitions                   *
 * ********************************************************* */

// Wemos Mini D1 Pro pinout. This should have been provided by selecting the correct board but this
// board wasn't available when I looked for it so whatever this requires less dependency on the
// Arduino IDE configuration anyway.
// https://arduino-projekte.info/wp-content/uploads/2017/03/wemos_d1_mini_pro_pinout.png
byte PIN_D0 = 16;
byte PIN_D1 = 5;
byte PIN_D2 = 4;
byte PIN_D3 = 0;
byte PIN_D4 = 2;
byte PIN_D5 = 14;
byte PIN_D6 = 12;
byte PIN_D7 = 13;
byte PIN_D8 = 15;

/* The Arduino Web site recommends that one uses const 
 * rather than #define since using #define could have  
 * unwanted side effects
 */
const int redPin   = PIN_D3;   // Red LED pin
const int greenPin = PIN_D2;   // Green LED pin
const int bluePin  = PIN_D1;   // Blue LED pin
const int maxBright = 255; // Maximum LED brightness


/* ***********************************************************
 *                       setup Function                      *
 * ********************************************************* */
void setup(){
    // Turn on the Serial Port
    Serial.begin(115200);
    pinMode(redPin, OUTPUT);
    pinMode(greenPin, OUTPUT);
    pinMode(bluePin, OUTPUT);
}

/* ***********************************************************
 *                       loop Function                       *
 * ********************************************************* */
void loop(){
  digitalWrite(redPin,   HIGH);
  digitalWrite(greenPin, LOW);
  digitalWrite(bluePin,  LOW);
  delay(1000);

  
  digitalWrite(redPin,   LOW);
  digitalWrite(greenPin, HIGH);
  digitalWrite(bluePin,  LOW);
  delay(1000);

  digitalWrite(redPin,   LOW);
  digitalWrite(greenPin, LOW);
  digitalWrite(bluePin,  HIGH);
  delay(1000);


  digitalWrite(redPin,   HIGH);
  digitalWrite(greenPin, HIGH);
  digitalWrite(bluePin,  LOW);
  delay(1000);


  digitalWrite(redPin,   HIGH);
  digitalWrite(greenPin, LOW);
  digitalWrite(bluePin,  HIGH);
  delay(1000);


  digitalWrite(redPin,   LOW);
  digitalWrite(greenPin, HIGH);
  digitalWrite(bluePin,  HIGH);
  delay(1000);


  digitalWrite(redPin,   HIGH);
  digitalWrite(greenPin, HIGH);
  digitalWrite(bluePin,  HIGH);
  delay(1000);
}