// https://forum.arduino.cc/t/pir-as-switch-for-serial-output/1224834
// https://wokwi.com/projects/390019934465917953

/// switched from serial1
/// pushbutton not a PIR - pushbutton has bouncing turned off!
/// now PIR select it when running. 3 second latch, three second inhibit period

// a global variable flag
bool pirIsON;

const byte pirPin = 5;
const byte pirLEDPin = 4;

# define ACTIVE HIGH

void setup() {
  Serial.begin(9600);
  Serial.println("Jello Whirled!\n");

  pinMode(pirPin, INPUT_PULLUP);
  pinMode(pirLEDPin, OUTPUT);

  pirIsON = digitalRead(pirPin) == ACTIVE;
}

void loop() {

  bool sensorActive = digitalRead(pirPin) == ACTIVE;

  if (sensorActive) {   // PIR activated (NO)...
    if (!pirIsON) {
      Serial.write('A'); //send 'A' over serial TX pin 1
      pirIsON = true;
    }
  } 
  else {                // PIR not activated (NC)...
    if (pirIsON) {
      Serial.write('a'); //send 'a' over serial TX pin 1
      pirIsON = false;
    }
  }

  digitalWrite(pirLEDPin, pirIsON ? HIGH : LOW);
}

/*
    {
      "type": "wokwi-pir-motion-sensor",
      "id": "pir1", "top": -140,
      "left": -16.98, "attrs": {"delayTime":"5", "inhibitTime":"5" } },
*/