const int pot = A0;
int time = 0;

void setup() {
Serial.begin (9600);
pinMode(8, OUTPUT);
pinMode(9, OUTPUT);
pinMode(10, OUTPUT);
}

void loop() {
  int valorpot = analogRead(pot);                                          //mapeia o valor do pot (0 a 1023)
  time = map(valorpot, 0, 1023, 5000, 30000);                           //intervalo de 10s - 30s

//verde (acender)
  digitalWrite(8, HIGH);
  delay(time);
  digitalWrite(8, LOW);

//amarelo (2 segundos cada piscada)
  for (int i = 0; i < 3; i++) { 
    digitalWrite(10, HIGH);
    delay(2000); 
    digitalWrite(10, LOW);
    delay(2000);
  }

//vermelho (acender)
  digitalWrite(9, HIGH);
  delay(time);
  digitalWrite(9, LOW);

}
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