#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 = "MM4QVIS88NPNVSAV"; //Colocar a KEY

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: OFF");
  }
  else
  {
    lcd.setCursor(0,0);
    lcd.print("Chave: ON");
  }
  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();
}