#include <WiFi.h>
#include <LiquidCrystal_I2C.h>

#define ch1 18
#define pot1 33
#define led 19

const char* ssid = "Wokwi-GUEST";
const char* password = "";
const char* host = "api.thingspeak.com";
const char* APIkeyWrite = "QJEY59O6MSTSZMOQ"; //Colocar a KEY que você criou aqui!

LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup()
{
  lcd.init();
  lcd.backlight();
  lcd.setCursor(1,0);
  lcd.print("Exp. 8 - NUVEM");
  pinMode(ch1, INPUT_PULLUP);
  pinMode(led, OUTPUT);
  digitalWrite(led, LOW);
  Serial.begin(115200);
  WiFi.begin(ssid, password); // rede e senha do WiFi
  Serial.print("Conectando-se ao WiFi");
  while (WiFi.status() != WL_CONNECTED)
  {
  delay(100);
  Serial.print(".");
  }

  Serial.print("OK! IP=");
  Serial.println(WiFi.localIP());
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Conectou no WIFI");
  delay(1000);
  lcd.clear();
  }

void loop()
{
  bool botao1=digitalRead(ch1);
  if (botao1==false)
  {
    lcd.setCursor(0,0);
    lcd.print("Chave: ON");
  }
  else
  {
    lcd.setCursor(0,0);
    lcd.print("Chave: OFF");
  }
  int pot = analogRead(pot1);
  pot = map(pot, 0, 4095, 0, 100);

  lcd.setCursor(0,1);
  lcd.print("pot:");
  lcd.setCursor(5,1);
  lcd.print(pot);

  if (WiFi.status() == WL_CONNECTED)
    digitalWrite(led, HIGH);

  else
    digitalWrite(led, LOW);

  WiFiClient client;
  const int httpPort = 80;
  if (!client.connect(host, httpPort))
  {
  return;
  }String url = "/update?api_key=";
  url += APIkeyWrite;
  url += "&field1=";
  url += String(botao1);
  url += "&field2=";
  url += String(pot);
  url += "\r\n";
  Serial.println(url);
  
  String endereco = String("GET ") + url + " HTTP/1.1\r\n" +
  "Host: " + host + "\r\n" + "Connection: close\r\n\r\n";
  Serial.println(endereco);
  client.print(endereco);
  delay(10000);
  lcd.clear();
}