#define ir  7
#define red 5
#define green 6
#define blue 9

void setup() {
  pinMode(ir, OUTPUT);
  pinMode(red, OUTPUT);
  pinMode(green, OUTPUT);
  pinMode(blue, OUTPUT);
}

void loop() {
  analogWrite(ir, 255);
  delay(10);
  analogWrite(ir, 0);
  delay(10);
  
  analogWrite(red, 255);
  analogWrite(green, 255);
  analogWrite(blue, 255);
  delay(10);
  digitalWrite(red, LOW);
  digitalWrite(green, LOW);
  digitalWrite(blue, LOW);
  delay(10);
}