ESP8266_NodeMCU.ino

int RED_LED = 12;
int BLUE_LED = 13;
int GREEN_LED = 14;


void setup() {
  // Initialisation
  pinMode(RED_LED,OUTPUT);
  pinMode(BLUE_LED,OUTPUT);
  pinMode(GREEN_LED,OUTPUT); 

  Serial.begin(9600);

  digitalWrite(RED_LED, HIGH);
  digitalWrite(BLUE_LED, HIGH);
  digitalWrite(GREEN_LED, HIGH); 
  
}


void fade(int PIN)
{
  for(int i=0;i<1024;i++)
  {
    analogWrite(PIN,i);
    delay(5);
  }
  delay(1000);
}

void setColor(int R, int G, int B)
{
  analogWrite(RED_LED,(1024-R*4));
  analogWrite(BLUE_LED,(1024-B*4));
  analogWrite(GREEN_LED,(1024-G*4));
}

void RGB_Spectrum()
{
  int i,j,k = 0;
  for(i=0; i<255; i+=40)
  {
    for(j=0; j<255; j+=40)
    {
      for(k=0; k<255; k+=40)
      {
        setColor(i,j,k);
        delay(10);
      }
    }
  }
}
void loop() {
  // put your main code here, to run repeatedly:
  //RGB_Spectrum();
  delay(200);
  setColor(random(0, 255),random(0, 255),random(0, 255));
  while (Serial.available() > 0) {

    // look for the next valid integer in the incoming serial stream:
    int red = Serial.parseInt();
    // do it again:
    int green = Serial.parseInt();
    // do it again:
    int blue = Serial.parseInt();

    // look for the newline. That's the end of your
    // sentence:
    if (Serial.read() == '\n') {
      setColor(red,green,blue);
    }
  }
}