#include <WiFi.h>
#include "ThingSpeak.h"

#define POT_PIN 34   // Potentiometer pin

const char* ssid = "Wokwi-GUEST";
const char* password = "";

unsigned long channelID =  3244361;     // Replace with your Channel ID
const char* writeAPIKey = "BG3JHSBQ7QF3G9AM";

WiFiClient client;

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

  WiFi.begin(ssid, password);
  Serial.print("Connecting to WiFi");
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("\nWiFi Connected");

  ThingSpeak.begin(client);
}

void loop() {
  int adcValue = analogRead(POT_PIN);

  float voltage = 230.0; // Fixed voltage
  float current = (adcValue / 4095.0) * 10; // Simulated current (0–10A)
  float power = voltage * current;

  Serial.println("Smart Energy Meter");
  Serial.print("Voltage: "); Serial.println(voltage);
  Serial.print("Current: "); Serial.println(current);
  Serial.print("Power: "); Serial.println(power);

  ThingSpeak.setField(1, voltage);
  ThingSpeak.setField(2, current);
  ThingSpeak.setField(3, power);

  ThingSpeak.writeFields(channelID, writeAPIKey);

  delay(15000); // ThingSpeak update delay
}