#include <Servo.h>
#define servo1 3 
#define presenca 2
#define ledverm 10
#define ledverd 9

Servo s1;  
int pos1; // posição do servo 1


void setup() {
  // put your setup code here, to run once:
  Serial.flush();
  pinMode(presenca,INPUT);
  pinMode(ledverm, OUTPUT);
  pinMode(ledverd, OUTPUT);
  digitalWrite(ledverm, HIGH);
  s1.attach(servo1);
  Serial.begin(9600);
  s1.write(0); // Iniciar servo 1 na posição zero
}

void loop() {
  // put your main code here, to run repeatedly:
 int x = digitalRead(presenca);  
 if (x == HIGH) {    
    for (pos1 = 0; pos1 < 90; pos1++) {
        s1.write(pos1);
        delay(40);        
    }
    digitalWrite(ledverd, HIGH);
    digitalWrite(ledverm, LOW);
    delay(10000);
    digitalWrite(ledverd, LOW);
    digitalWrite(ledverm, HIGH);
    for(pos1 = 90; pos1 > 0; pos1--)
    {
      s1.write(pos1);
       delay(40);       
    }    
 }
}