// 2846599 DESARROLLO DE SISTEMAS ELECTRONICOS INDUSTRIALES
// Reto Semáforo 2 ElectronicSh
// Aprendiz: Shmuel Yehudah Otalvaro Segura

int led_red_1 = 13;
int led_yellow_1 = 12;
int led_green_1 = 11;
int led_red_2 = 10;
int led_yellow_2 = 9;
int led_green_2 = 8;

void setup() {
    pinMode(led_red_1, OUTPUT);
    pinMode(led_yellow_1, OUTPUT);
    pinMode(led_green_1, OUTPUT);
    pinMode(led_red_2, OUTPUT);
    pinMode(led_yellow_2, OUTPUT);
    pinMode(led_green_2, OUTPUT);
}
void loop() {
    // ETAPA 1
    digitalWrite(led_red_1, HIGH);
    digitalWrite(led_red_2, HIGH);
    delay(3000);
    // ETAPA 2
    digitalWrite(led_red_1, HIGH);
    digitalWrite(led_yellow_1, HIGH);
    delay(2000);
    // ETAPA 3
    digitalWrite(led_red_1, LOW);
    digitalWrite(led_yellow_1, HIGH);
    digitalWrite(led_green_1, HIGH);
    delay(2000);    
    // ETAPA 4
    digitalWrite(led_yellow_1, LOW);
    digitalWrite(led_green_1, HIGH);
    delay(3000);
    // ETAPA 5
    digitalWrite(led_green_1, HIGH);
    digitalWrite(led_yellow_1, HIGH);
    delay(2000);
     // ETAPA 6
    digitalWrite(led_red_1, HIGH);
    digitalWrite(led_yellow_1, HIGH);
    digitalWrite(led_green_1, LOW);
    delay(2000);
    // ETAPA 7
    digitalWrite(led_red_1, HIGH);    
    digitalWrite(led_red_2, HIGH);
    digitalWrite(led_yellow_1, LOW); 
    delay(3000);
    // ETAPA 28
    digitalWrite(led_red_1, HIGH);
    digitalWrite(led_yellow_2, HIGH);
    delay(2000);
    // ETAPA 9
    digitalWrite(led_red_2, LOW);
    digitalWrite(led_yellow_2, HIGH);
    digitalWrite(led_green_2, HIGH);
    delay(2000);    
    // ETAPA 10
    digitalWrite(led_yellow_2, LOW);
    digitalWrite(led_green_2, HIGH);
    delay(3000);
    // ETAPA 11
    digitalWrite(led_green_2, HIGH);
    digitalWrite(led_yellow_2, HIGH);
    delay(2000);
     // ETAPA 12
    digitalWrite(led_red_2, HIGH);
    digitalWrite(led_yellow_2, HIGH);
    digitalWrite(led_green_2, LOW);
    delay(2000);
    // ETAPA 13
    digitalWrite(led_yellow_2, LOW);
    delay(2000);
}