// COLOR - ANALOG - READINGS DEPENDS ON COLOR AND LIGHT
int led1 = 4; // led 1 GREEN
int led2 = 6; // led 2 RED
int led3 = 9; // led 3 BLUE
int sen1 = A0; // COLOR
int pw = 13; // sensor power
void setup() {
  Serial.begin(9600);                
  pinMode(led1, OUTPUT); 
  pinMode(led2, OUTPUT); 
  pinMode(led3, OUTPUT);  
  pinMode(pw, OUTPUT);  
  pinMode(sen1, INPUT); 
  digitalWrite(led1, LOW); 
  digitalWrite(led2, LOW); 
  digitalWrite(led3, LOW);   
  digitalWrite(pw, HIGH);  
}
void loop() {
  Serial.println(String(analogRead(sen1))); 
  if (analogRead(sen1) > 879) // 872 BLUE
  {  
  digitalWrite(led3, HIGH);
  }
  else
  {
  digitalWrite(led3, LOW);
  }
  if (analogRead(sen1) > 820 && analogRead(sen1) < 840) // 823 RED
  {  
  digitalWrite(led2, HIGH);
  }
  else
  {
  digitalWrite(led2, LOW);
  }  
  if (analogRead(sen1) > 860 && analogRead(sen1) < 880) // 863 GREEN
  {  
  digitalWrite(led1, HIGH);
  }
  else
  {
  digitalWrite(led1, LOW);
  }  
}