#include <WiFi.h>
#include "ThingSpeak.h"
const char* WIFI_NAME = "Wokwi-GUEST";
const char* WIFI_PASSWORD = "";
const int myChannelNumber = 2503093;
const char* myApiKey = "DYX3KPEO3J561BJ1";
const char* server = "api.thingspeak.com";
int potPin = 34;
int trigPin = 32;
int echoPin = 33;
WiFiClient client;

void setup() {
  Serial.begin(115200);
  pinMode(potPin, INPUT);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, 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()));
  WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);
}

void loop() {
  int potValue = analogRead(potPin);
  float distance = getDistance(trigPin, echoPin);
  ThingSpeak.setField(1, potValue);
  ThingSpeak.setField(2, distance);
  ThingSpeak.writeFields(myChannelNumber, myApiKey);
  Serial.print("Potentiometer Value: \t");
  Serial.println(potValue);
  Serial.print("Distance: \t");
  Serial.println(distance);
  delay(3000);
}

float getDistance(int trigPin, int echoPin) {
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  float duration = pulseIn(echoPin, HIGH);
  float distance = duration * 0.034 / 2;
  return distance;
}