#include <WiFi.h>
#include "ThingSpeak.h"
const char* WIFI_NAME = "Wokwi-GUEST";
const char* WIFI_PASSWORD = "";
const int myChannelNumber = 2503030;
const char* myApiKey = "6ZD2VP7HF2Q4ZAC7";
const char* server = "api.thingspeak.com";

const int potentiometerPin = 34; // Analog pin for potentiometer
const int ultrasonicTrigPin = 12; // GPIO pin for ultrasonic sensor trigger
const int ultrasonicEchoPin = 13; // GPIO pin for ultrasonic sensor echo

WiFiClient client;

void setup() {
  Serial.begin(9600);
  pinMode(potentiometerPin, INPUT);
  pinMode(ultrasonicTrigPin, OUTPUT);
  pinMode(ultrasonicEchoPin, INPUT);
  
  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()));

  ThingSpeak.begin(client);
}

void loop() {
  // Read potentiometer value
  int potValue = analogRead(potentiometerPin);
  
  // Read ultrasonic sensor value
  long duration, distance;
  digitalWrite(ultrasonicTrigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(ultrasonicTrigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(ultrasonicTrigPin, LOW);
  duration = pulseIn(ultrasonicEchoPin, HIGH);
  distance = (duration * 0.0343) / 2;

  // Send data to ThingSpeak
  ThingSpeak.setField(1, potValue);
  ThingSpeak.setField(2, distance);
  ThingSpeak.writeFields(myChannelNumber, myApiKey);

  // Print data to Serial Monitor
  Serial.print("Potentiometer Value: ");
  Serial.println(potValue);
  Serial.print("Ultrasonic Distance: ");
  Serial.println(distance);

  delay(3000);
}