Sketc01

#define LED  A3 // назначаем порт для светодиода
#define PIR1  3 // назначаем порт для PIR sensor
#define PIR2  4

void setup()
{
  pinMode(LED, OUTPUT);
  pinMode(PIR1, INPUT);
  pinMode(PIR2, INPUT);
  digitalWrite(LED, HIGH);
  delay(100); digitalWrite(LED, LOW); delay(500); digitalWrite(LED, HIGH); delay(100); digitalWrite(LED, LOW); delay(8000);
  digitalWrite(13, HIGH); delay(500); digitalWrite(13, LOW); delay(100); digitalWrite(13, HIGH); delay(100); digitalWrite(13, LOW);
}

void loop() {
int pirState = digitalRead(PIR1) + digitalRead(PIR2);
if (pirState == HIGH){
digitalWrite(LED, HIGH); delay(500);digitalWrite(LED, LOW);
}}