//พิทยา ศรีธิเขียว ชั้น เลขที่
int led_Red = 13;
int led_Yellow = 11;
int led_Green = 10;
void setup() {
  Serial.begin(9600);
  pinMode((led_Red), OUTPUT);
  pinMode((led_Yellow), OUTPUT);
  pinMode((led_Green), OUTPUT);
}
void loop() {
  digitalWrite(led_Red,1);
  delay(500);
  digitalWrite(led_Red,0);
  delay(500);
  digitalWrite(led_Yellow,1);
  delay(500);
  digitalWrite(led_Yellow,0);
  delay(500);
  digitalWrite(led_Green,1);
  delay(500);
  digitalWrite(led_Green,0);
  delay(500);
  digitalWrite(led_Green,1);
  delay(500);
  digitalWrite(led_Green,0);
  delay(500);
  digitalWrite(led_Yellow,1);
  delay(500);
  digitalWrite(led_Yellow,0);
  delay(500);
  digitalWrite(led_Red,1);
  delay(500);
  digitalWrite(led_Red,0);
  delay(500);
  digitalWrite(led_Red,1);
  digitalWrite(led_Yellow,1);
  digitalWrite(led_Green,1);
  delay(500);
  digitalWrite(led_Red,0);
  digitalWrite(led_Yellow,0);
  digitalWrite(led_Green,0);
  delay(500);
  digitalWrite(led_Red,1);
  digitalWrite(led_Yellow,1);
  digitalWrite(led_Green,1);
  delay(500);
  digitalWrite(led_Red,0);
  digitalWrite(led_Yellow,0);
  digitalWrite(led_Green,0);
  delay(500);
  digitalWrite(led_Red,1);
  digitalWrite(led_Yellow,1);
  digitalWrite(led_Green,1);
  delay(500);
  digitalWrite(led_Red,0);
  digitalWrite(led_Yellow,0);
  digitalWrite(led_Green,0);
  delay(500);
}