#include <Wire.h>
#include <HTTPClient.h>
#include <WiFi.h>
// ThingSpeak parameters
const char *thingSpeakApiKey = "PKXBMVOS1FY4PITS";
const char *thingSpeakUrl = "http://api.thingspeak.com/update";

// Pin configuration for TDS and pH sensors
const int tdsSensorPin = A0;  // Replace with the actual pin
const int phSensorPin = 5;   // Replace with the actual pin

void setup() {
  Serial.begin(115200);

  Serial.print("Connecting to WiFi");
  WiFi.begin("Wokwi-GUEST", "", 6);
  while (WiFi.status() != WL_CONNECTED) {
    delay(100);
    Serial.print(".");
  }
  Serial.println(" Connected!");
}
void loop() {
  // Generate dummy data for the first 10 seconds
  if (millis() < 10000) {
    float tdsValue = random(0, 1000);  // Simulating values between 0 and 1000
    float phValue = random(0, 14);      // Simulating values between 0 and 14
    float tds = map(tdsValue, 0, 1000, 0, 1000);
    float ph = map(phValue, 0, 14, 0, 14);

    // Display sensor readings on the Serial Monitor
    Serial.print(F("TDS: "));
    Serial.print(tds);
    Serial.print(F(", pH: "));
    Serial.println(ph);

    // Send data to ThingSpeak
    sendDataToThingSpeak(tds, ph);

    delay(1000);  // Adjust the delay based on your requirements
  } else {
    // After 10 seconds, set the pH sensor to 6.4 and the TDS sensor to 120
    float tds = 120.0;
    float ph = 6.4;

    // Display sensor readings on the Serial Monitor
    Serial.print(F("TDS: "));
    Serial.print(tds);
    Serial.print(F(", pH: "));
    Serial.println(ph);

    // Send data to ThingSpeak
    sendDataToThingSpeak(tds, ph);

    // You may want to add additional logic or delay here, depending on your needs
  }
}

void sendDataToThingSpeak(float tds, float ph) {
  HTTPClient http;

  // Construct the ThingSpeak URL with parameters
  String url = String(thingSpeakUrl) + "?api_key=" + String(thingSpeakApiKey) +
               "&field1=" + String(tds) + "&field2=" + String(ph);

  Serial.println("Sending data to ThingSpeak...");

  // Make the HTTP request
  http.begin(url);

  // Check the HTTP response code
  int httpCode = http.GET();
  if (httpCode > 0) {
    Serial.printf("HTTP Response Code: %d\n", httpCode);
  } else {
    Serial.println("HTTP Request failed");
  }

  // Close the connection
  http.end();
}