PIR Sensor Interfacing with ESP8266


Program


 #define pir D1 

#define LED D2

void setup() {

  Serial.begin(9600);

  pinMode(pir, INPUT);   // declare pir sensor pin as input

  pinMode(LED, OUTPUT);  // declare LED as output

}

void loop() {


  long state = digitalRead(pir);

    if(state == HIGH) {

      Serial.println("Motion Detected");

      digitalWrite (LED, HIGH);

      delay(5000);

    }

    else {

      Serial.println("Motion not detected");

      digitalWrite (LED, LOW);

      delay(1000);

      }

}

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