#define sensorPin D10
const int rLED = D8; // red LED
int motionState = LOW;  // we start and assuming no motion detected
int val = 0; // valuable for reading the pin status

void setup() {
  Serial.begin(9600);
  pinMode(sensorPin, INPUT);
  pinMode(rLED, OUTPUT);
}

void loop() {
val = digitalRead(sensorPin);  // read RCWL value

if (val == HIGH) {   // chec if the input is HIGH
  digitalWrite(rLED, HIGH);  // turn LED on

  if (motionState == LOW) {
    Serial.println("Motion detected!");  // print on output change
    motionState = HIGH;
  }
}

else {
  digitalWrite(rLED, LOW) ;  // turn LED off
  
  if (motionState == HIGH) {
  Serial.println("Motion ended");  // print on output change
  motionState = LOW ;
    }
  }
}