PIR shield voor D1 mini

Arduino code voorbeeld:

/*
 * 1 Button Shield - Simple Push
 * Press the pushbutton to switch on the LED
 *
 * 1 Button Shield pushbutton connects pin D3 to GND
 */

const int PIR = D3;


int PIRState = 0;

void setup() {
  pinMode(PIR, INPUT);
  pinMode(BUILTIN_LED, OUTPUT);

  // set initial state, LED off
  digitalWrite(BUILTIN_LED, HIGH);
}

void loop() {

  PIRState = digitalRead(PIR);


  if (PIRState == HIGH) {
    digitalWrite(BUILTIN_LED, LOW);  // LED on
  } else {
    digitalWrite(BUILTIN_LED, HIGH); // LED off
  }
}