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

const char* WIFI_NAME = "YourWiFiSSID";
const char* WIFI_PASSWORD = "YourWiFiPassword";
const int myChannelNumber = 2500308;
const char* myApiKey = "YourThingSpeakAPIKey";

#define TRIGGER_PIN 4
#define ECHO_PIN 5
#define MAX_DISTANCE 200

const int ledPin = 13;

NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE);
WiFiClient client;

void setup() {
  Serial.begin(115200);
  pinMode(ledPin, OUTPUT);
  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()));
  WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);
}

void loop() {
  unsigned int distance = sonar.ping_cm();
  int potValue = analogRead(12); 

  if (distance < 25) {
    digitalWrite(ledPin, HIGH); 
  } else {
    digitalWrite(ledPin, LOW); 
  }

  ThingSpeak.setField(1, distance); 
  ThingSpeak.setField(2, potValue); 
  ThingSpeak.writeFields(myChannelNumber, myApiKey);

  Serial.print("Ultrasonic Distance: ");
  Serial.print(distance);
  Serial.println(" cm");
  Serial.print("Potentiometer Value: ");
  Serial.println(potValue);

  delay(3000); 
}