#define BLYNK_TEMPLATE_ID "TMPL3I8X2jIUU"
#define BLYNK_TEMPLATE_NAME "Earthquake Alert"
#define BLYNK_AUTH_TOKEN "oLryH3aqHhrDAztuliToxVhBpo9SoPpp"


#define BLYNK_PRINT Serial

#define pinBuzzer 2
#define greenLED 4
#define redLED 5

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <Adafruit_MPU6050.h>
#include <Adafruit_Sensor.h>
#include <Wire.h>

Adafruit_MPU6050 mpu;


char auth[] = BLYNK_AUTH_TOKEN;


char ssid[] = "Wokwi-GUEST";
char pass[] = "";

BlynkTimer timer;

void myTimerEvent()
{
  Blynk.virtualWrite(V2, millis() / 1000);
}

void setup()
{
  Serial.begin(115200);
  Blynk.begin(auth, ssid, pass);
  pinMode(pinBuzzer, OUTPUT);
  pinMode(greenLED, OUTPUT);
  pinMode(redLED, OUTPUT);
  

  timer.setInterval(1000L, myTimerEvent); //Staring a timer
  
  if (!mpu.begin()) {
    Serial.println("Failed to find MPU6050 chip");
    while (1) {
      delay(10);
    }
  }
  Serial.println("MPU6050 Found!");

  mpu.setAccelerometerRange(MPU6050_RANGE_16_G);
  mpu.setGyroRange(MPU6050_RANGE_250_DEG);
  mpu.setFilterBandwidth(MPU6050_BAND_21_HZ);
  Serial.println("");
  delay(100);
}


void loop()
{
  detect();
  timer.run();
}

void detect(){

  sensors_event_t a, g, temp;
  mpu.getEvent(&a, &g, &temp);

  int acX = a.acceleration.x;
  int acY = a.acceleration.y;
  int acZ = a.acceleration.z;
  
  if (millis() / 1000 % 10 == 0) { 
    acX = 1000;
    acY = 1000;
    acZ = 1000;
  }

  String v = ",";
  String x = String(acX);
  String y = String(acY);
  String z = String(acZ);

  if(acX && acY && acZ > 0){
    ledcAttachPin(pinBuzzer, 0); 
    ledcWriteTone(0, 1000); 
    digitalWrite(redLED, HIGH);
    digitalWrite(greenLED, LOW);
    Serial.println("Machine in bad condition !!! "+ x + v + y+ v + z);
    Serial.println("");
    Blynk.virtualWrite(V0, "Machine in bad condition !!!");
    Blynk.virtualWrite(V1, 1);

  }else{
    ledcDetachPin(pinBuzzer); 
    Serial.println("SAFE "+ x + v + y+ v + z);
    digitalWrite(redLED, LOW);
    digitalWrite(greenLED, HIGH);
    Serial.println("");
    Blynk.virtualWrite(V0, "SAFE");
    Blynk.virtualWrite(V1, 1);
  }
  delay(1500);
  Blynk.run();
}