int pin = 8;
int pin1 = 7;
int jeda = 1000;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(pin, OUTPUT);
  pinMode(pin1, OUTPUT);


}

void loop() {
  // put your main code here, to run repeatedly:
  int iVar = 51;
  
  if (iVar<10)
  {
    digitalWrite(pin, HIGH);
    delay(jeda);
    digitalWrite(pin1, LOW);
    delay(jeda);
  }

  if (iVar>10)
  {
    digitalWrite(pin, LOW);
    delay(jeda);
    digitalWrite(pin1, HIGH);
    delay(jeda);
  }
}