Works****************************************************
/* HC-SR505 Motion Detector */
#define ledPin D7 // Red LED
#define pirPin D1 // Input for HC-SR505

int pirValue; // variable to store read PIR Value

void setup() 
{
  pinMode(ledPin, OUTPUT);
  pinMode(pirPin, INPUT);
  digitalWrite(ledPin, LOW);
}

void loop() 
{
  pirValue = digitalRead(pirPin);
  digitalWrite(ledPin, pirValue);
}


Does not Work************************************************

/* HC-SR501 Motion Detector */
#define ledPin D7 // Red LED
#define pirPin D1 // Input for HC-SR501

int pirValue; // variable to store read PIR Value

void setup() 
{
  pinMode(ledPin, OUTPUT);
  pinMode(pirPin, INPUT);
  digitalWrite(ledPin, LOW);
  Serial.begin(9600);
}

void loop() 
{
  delay(2000);
  pirValue = digitalRead(pirPin);
  digitalWrite(ledPin, pirValue);
  if (pirValue == 1)
  {
    Serial.println("Motion Detected");
  }
  
  else if (pirValue == 0)
  {
    Serial.println("All Clear");
  }
  
}