#define BLYNK_TEMPLATE_ID "TMPL3J4sfwZPh"
#define BLYNK_TEMPLATE_NAME "iot proj"
#define BLYNK_AUTH_TOKEN "wsuxzZP5knLaQtNSAtY1pmkDervTH_u4"
#include <BlynkSimpleEsp32.h>
#include <ThingSpeak.h>
#include <WiFi.h>
// Declare global variables
WiFiClient client;

// Replace these with your actual values
String ssid = "network unavailable";
String password = "123456789";
String apiKey = "V46OKHYC2R3560KV";
String blynkAuth = "wsuxzZP5knLaQtNSAtY1pmkDervTH_u4";
long channelID = 2334764; // Replace with your ThingSpeak channel ID

// Declare sensor pins
const int Tur_PIN = 34; // Turbidity
#define PH_PIN 35         // pH
#define DHT_PIN 33        // Temperature

// Declare warning LEDs
const int pHWarningAxit = 2; // Red LED
const int pHWarningbazo = 18; // Green LED
const int TurWarning = 4;    // Orange LED for Turbidity
const int TempWarning = 5;   // Yellow LED for Temperature

float turbidity;
float phValue;
float temp;

void setup() {
  Serial.begin(9600);

  // Connect to Wi-Fi
  Blynk.begin(blynkAuth, ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");


}

void Turbidity() {
  int Tur = analogRead(Tur_PIN);
  turbidity = map(Tur, 0, 4095, 0, 100);
  Serial.print("Turbidity: ");
  Serial.println(turbidity);

  delay(100);
  if (turbidity < 20) {
    Serial.println("Low Turbidity");
    digitalWrite(TurWarning, LOW);
  } else if (turbidity >= 20 && turbidity < 50) {
    Serial.println("Moderate Turbidity");
    digitalWrite(TurWarning, HIGH);
  } else if (turbidity >= 50) {
    Serial.println("High Turbidity");
    digitalWrite(TurWarning, HIGH);
  }
}

void Temperature() {
  int Temp = analogRead(DHT_PIN);
  temp = map(Temp, 0, 4095, 0, 100);
  Serial.print("Temperature: ");
  Serial.println(temp);

  delay(100);
  if (temp < 20) {
    Serial.println("Low Temperature");
    digitalWrite(TempWarning, LOW);
  } else if (temp >= 20 && temp < 50) {
    Serial.println("Moderate Temperature");
    digitalWrite(TempWarning, HIGH);
  } else if (temp >= 50) {
    Serial.println("High Temperature");
    digitalWrite(TempWarning, HIGH);
  }
}

void pHRate() {
  int phR = analogRead(PH_PIN);
  phValue = map(phR, 0, 4095, 0, 14);
  Serial.print("pH Value: ");
  Serial.println(phValue);
  delay(100);
  if (phValue >= 6.5 && phValue <= 8.5) {
    Serial.println("Optimal pH");
    digitalWrite(pHWarningAxit, LOW);
    digitalWrite(pHWarningbazo, LOW);
  } else if (phValue < 6.5) {
    Serial.println("Low pH");
    digitalWrite(pHWarningAxit, HIGH);
    digitalWrite(pHWarningbazo, LOW);
  } else if (phValue > 8.5) {
    Serial.println("High pH");
    digitalWrite(pHWarningbazo, HIGH);
    digitalWrite(pHWarningAxit, LOW);
  }
}

void loop() {
  Blynk.run();

  Turbidity();
  pHRate();
  Temperature();

  // Send data to ThingSpeak
  ThingSpeak.writeField(2334762, 1, phValue, apiKey);
  ThingSpeak.writeField(2334761, 2, temp, apiKey);
  ThingSpeak.writeField(2334763, 3, turbidity, apiKey);

  delay(5000);
}