#define BLYNK_TEMPLATE_ID "TMPL3KDqpsa3o"
#define BLYNK_TEMPLATE_NAME "Smart cattle monitoring"
#define BLYNK_AUTH_TOKEN "uNpam4dUBEG_QjtQQdICGeYrYjXUcCm8"
#define BLYNK_PRINT Serial
#include <Wire.h> 
#include<WiFi.h>
#include<WiFiClient.h>
#include<BlynkSimpleEsp32.h>
#include<DHT.h>
#include<HardwareSerial.h>
#include "ThingSpeak.h"
#define DHTTYPE DHT22
#define DHTPIN 17

byte led=12;
byte led2=27;
int buzzer=18;

char ssid[]="Wokwi-GUEST";
char pass[]="";
char auth[]="uNpam4dUBEG_QjtQQdICGeYrYjXUcCm8";
const int myChannelNumber =2716601 ;
const char* myApiKey = "77QT06E0MK2P6SGW";
const char* server = "https://thingspeak.mathworks.com/";

const float potPin=34;
float potValue=0;
const float rate=4;
float rate_value=0;
DHT dht(DHTPIN,DHTTYPE,22);
BlynkTimer timer;
WiFiClient client;

void setup(){
  Serial.begin(115200);
  WiFi.begin(ssid, pass);
  Blynk.begin(auth,ssid,pass);
  timer.setInterval(2000L,sendData);
  pinMode(led, OUTPUT);
  digitalWrite(led, LOW);
  pinMode(led2, OUTPUT);
  digitalWrite(led2, LOW);
  pinMode(buzzer, OUTPUT);
  Serial.println("reading data from the cattle!");
  WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);
}

void sendData(){
  potValue=analogRead(potPin);
  rate_value=analogRead(rate);
  float h=dht.readHumidity();
  float t=dht.readTemperature();
  Serial.println("oxygen:" +String(potValue));
  Serial.println("humidity:" +String(h));
  Serial.println("temperature:" +String(t));
  Serial.println("Pluse_level:" +String(rate_value));

  Blynk.virtualWrite(V2,potValue);
  Blynk.virtualWrite(V1,h);
  Blynk.virtualWrite(V0,t);
  Blynk.virtualWrite(V3,rate_value);

  ThingSpeak.setField(4,potValue);
  ThingSpeak.writeFields(myChannelNumber,myApiKey);

if(t>38)
  {
    Serial.println("health issues is detacted!treat your cattle quickly");
    Blynk.virtualWrite(V3,HIGH);
    digitalWrite(led, HIGH);
    tone(buzzer,200);
    delay(1000L);
  }
  else
  {
    Blynk.virtualWrite(V3,LOW);
    digitalWrite(led, LOW);
    tone(buzzer,0);
  }
  
  
  if(potValue<50)
  {
   Serial.println("your cattle oxygen level is too low");
   Blynk.virtualWrite(V4,HIGH);
   digitalWrite(led2, HIGH);
   tone(buzzer,200);
   delay(1000L);
  }
  else
  {
    Blynk.virtualWrite(V4,LOW);
    digitalWrite(led2, LOW);
    tone(buzzer,0);
  }
  
}

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