Semaforo Alex Sandro

#define LED_VD 2
#define LED_AM 3
#define LED_VM 4
#define PED_VD 5
#define PED_VM 6
#define botao 7


unsigned long delai = 5L * 1000L;
unsigned long delai2 = 10L * 1000L;
unsigned long comparativo=0;
unsigned long tempo=0;
int semaforo =0;

boolean pedestre = 0;
boolean pedestre2 = 0;
boolean carro = 1;

void setup() {

pinMode(LED_VM, OUTPUT);
pinMode(LED_AM, OUTPUT);
pinMode(LED_VD, OUTPUT);
pinMode(PED_VD, OUTPUT);
pinMode(PED_VM, OUTPUT);
pinMode(botao, INPUT);
digitalWrite(botao,HIGH);

}
void loop() {
tempo=millis();
if (digitalRead(botao)==LOW )
{
  delay(200);
  pedestre=1;
  }




if (carro==1)
{
          if (semaforo==0){
          digitalWrite(PED_VD, LOW);
          digitalWrite(LED_VM, LOW);
          digitalWrite(PED_VM, HIGH);
          digitalWrite(LED_VD, HIGH);
          semaforo=1;
          }


          if (tempo - comparativo > delai & semaforo == 1){/////5 segundos
          digitalWrite(LED_VD, LOW);
          digitalWrite(LED_AM, HIGH);
          comparativo=tempo;
          semaforo=2;
          }

          if (tempo - comparativo > delai & semaforo==2){/////10 segundos
          digitalWrite(LED_AM, LOW);
          digitalWrite(LED_VM, HIGH);
          comparativo=tempo;
          semaforo=3;
                   if (pedestre==1)
                    {
                      digitalWrite(PED_VM, LOW);
                      digitalWrite(PED_VD, HIGH);
                      digitalWrite(LED_VM, HIGH);
                      pedestre2=1;
                      carro=0;
                      }
          }

          if (tempo - comparativo > delai & semaforo==3){     /////15 segundos
          digitalWrite(LED_VM, LOW);
          comparativo=tempo;
          semaforo=0;
          }


}





if (tempo - comparativo > delai2 & pedestre==1 & pedestre2==1) {
digitalWrite(PED_VM, HIGH);
digitalWrite(PED_VD, LOW);
digitalWrite(LED_VM, LOW);
carro=1;
pedestre2=0;
pedestre=0;
}


}