// Declare libraries
#include <WiFi.h>
#include "ThingSpeak.h" 

// Declare wifi
const char* WIFI_NAME = "Wokwi-GUEST";
const char* WIFI_PASSWORD = "";
//Delcare channel
const int ChannelID = 2333206 ;
const char* APIKey = "MUYQ4LYGH5X52VI8";
// Declare sever address
const char* server = "api.thingspeak.com";
WiFiClient client;

void setup() {
  Serial.begin(115200);
  WiFi.begin(WIFI_NAME, WIFI_PASSWORD);
  while (WiFi.status() != WL_CONNECTED){
    delay(1000);
    Serial.println("Wifi not connected");
  }
  Serial.println("Wifi connected !");
  Serial.println("Local IP: " + String(WiFi.localIP()));
  //Set esp32 as a stattion
  WiFi.mode(WIFI_STA);
  //Initiate connection with ThingSpeack 
  ThingSpeak.begin(client);
}

void loop() {
  // Create random values for sensors
  int pH = random(0, 14); 
  int TSS = random(50, 200); 
  int BOD = random(20, 100);   
  int COD = random(50, 100);
  
  ThingSpeak.setField(1, pH);
  ThingSpeak.setField(2, TSS);
  ThingSpeak.setField(3, BOD);
  ThingSpeak.setField(4, COD);
  // Send data to ThingSpeak by writeFields function
  ThingSpeak.writeFields(ChannelID ,APIKey);
  // Update the values after 5 second
  delay(5000); 
}