#include <Arduino.h>

#define PIR_SENSOR_PIN 2
#define RELAY1_PIN 4

// Time in milliseconds
#define ACTIVATION_TIME 2000
#define WAIT_TIME 120000

unsigned long previousMillis = 0;
bool motionDetected = false;
byte effectState = 0;

void setup() {
  Serial.begin(115200);
  pinMode(PIR_SENSOR_PIN, INPUT);
  pinMode(RELAY1_PIN, OUTPUT);
  digitalWrite(RELAY1_PIN, LOW);
}

void loop() {
  unsigned long currentMillis = millis();

  if (digitalRead(PIR_SENSOR_PIN) == HIGH) {
    if (!motionDetected) {
      motionDetected = true;
      effectState = 0;
    } else
      motionDetected = true;

  }
  if (motionDetected) {
    switch (effectState) {
      case 0: digitalWrite(RELAY1_PIN, HIGH);
        previousMillis = millis();
        effectState++;
        break;
      case 1: if (millis() - previousMillis >= ACTIVATION_TIME) {
          previousMillis = millis();
          effectState++;
          digitalWrite(RELAY1_PIN, LOW);
        }
        break;
      case 2: if (millis() - previousMillis >= WAIT_TIME) {
          previousMillis = millis();
          effectState++;
          motionDetected = false;
        }
        break;
    }
  }
}