Digital Infrared Motion Sensor

https://imgur.com/a/N8xWKFg


int sensorState = 0;
void setup()
{
pinMode(2, INPUT);
pinMode(LED_BUILTIN, OUTPUT);
}
void loop()
{
 // read the state of the sensor/digital input
sensorState = digitalRead(2);
 // check if sensor pin is HIGH. if it is, set the
 // LED on.
if (sensorState == HIGH) {
digitalWrite(LED_BUILTIN, HIGH);
 } else {
digitalWrite(LED_BUILTIN, LOW);
 }
delay(10); // Delay a little bit to improve simulation performance
}