#include <Wire.h>
#include <WiFi.h>
#include <WiFiClient.h>

#include <DHT.h>
#include <Arduino.h>

#include <Adafruit_MPU6050.h>
#include <Adafruit_Sensor.h>

Adafruit_MPU6050 mpu;
#define DHT_PIN 12
#define PULSE_PIN 35

#define BLYNK_TEMPLATE_ID "TMPL3-rdMg-oI"
#define BLYNK_TEMPLATE_NAME "CATTLE MONITORING SYSTEM"
#define BLYNK_AUTH_TOKEN "ld1pTtP-YsixcJBhfNLDjR3q5glS36Kz"
#include <BlynkSimpleEsp32.h>

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

#define MQTT_TOPIC_HR "/heartRate"
#define MQTT_TOPIC_TEMP "/tempValue"
#define MQTT_TOPIC_HUM "/humValue"
#define MQTT_TOPIC_ACCEL "/accelData"
#define MQTT_TOPIC_GYRO "/gyroData"

DHT dht(DHT_PIN, DHT22);


#define BLYNK_PRINT Serial

BlynkTimer timer;

void setup() {
  Wire.begin(23, 22); 
  Serial.begin(9600);
  Serial.println("Hello,    ESP32!");

  Blynk.begin(auth, ssid, pass);

  dht.begin();

  while (!mpu.begin()) {
    Serial.println("MPU6050 not connected!");
    delay(1000);
  }
  Serial.println("MPU6050 ready!");

}

void loop() {
 
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();

  int16_t pulseValue = analogRead(PULSE_PIN);
  float voltage = pulseValue * (3.3 / 4095.0);


  int heartRate = (voltage / 3.3) * 675;


  Serial.print("Heart Rate: ");
  Serial.print(heartRate);
  Serial.print(" Temp: ");
  Serial.print(temperature);
  Serial.print(" Humidity: ");
  Serial.println(humidity);


  
  Blynk.virtualWrite(V3, heartRate); 
  Blynk.virtualWrite(V5, temperature);
  Blynk.virtualWrite(V4, humidity);

  sensors_event_t accel, gyro, temp;
  mpu.getEvent(&accel, &gyro, &temp);


  String accelData = String(accel.acceleration.x) + "," + String(accel.acceleration.y) + "," + String(accel.acceleration.z);
  String gyroData = String(gyro.gyro.x) + "," + String(gyro.gyro.y) + "," + String(gyro.gyro.z);
  

  Serial.print("Accel : ");
  Serial.print(accelData);

  Serial.print("Gyro : ");
  Serial.print(gyroData);


  delay(1000); 

Blynk.run();
 timer.run();
    
}