int plusPin = 5;
int minusPin = 3;

int time = millis();
int status = 0;

void setup() {
  // put your setup code here, to run once:
  pinMode(plusPin, OUTPUT);
  pinMode(minusPin, OUTPUT);
  analogWrite(plusPin, 0);
  analogWrite(minusPin, 0);
  analogWrite(plusPin, 255);
}

void loop() {
    if (status == 0 && millis() - time > 5000){
      status = 1;
      time = millis();
      analogWrite(plusPin, 0);
    }
    if (status == 1 && millis() - time > 1000){
      status = 0;
      time = millis();
      analogWrite(plusPin, 255);
    }
}