#include <WiFi.h>
#include <TM1637.h>
#include "PubSubClient.h"

const int CLK = 14;
const int DIO = 12;

TM1637 tm(CLK, DIO);

const char* ssid = "Wokwi-GUEST";
const char* password = "";
const char* mqttServer = "mqttgo.io";
int port = 1883;
String stMac;
char mac[50];
char clientId[50];

WiFiClient espClient;
PubSubClient client(espClient);

const int LED = 2;

void setup() {
  Serial.begin(115200);
  tm.init();
  pinMode(LED, OUTPUT);
  pinMode(13, OUTPUT);
  pinMode(12, OUTPUT);
}

void WifiConnect() {
  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
}



void loop() {
  digitalWrite(LED, HIGH);
  delay(500);
  digitalWrite(LED, LOW);
  delay(500);

  String stMessage
  for (int i = 0; i < length; i++) {
    stMessage += (char)message(i);
  }
  if (string(topic) == "eric_4d/num") {
    Serial.println(stMessage);
    tm.display(0, number / 1000 % 10);
    tm.display(1, number / 100 % 10);
    tm.display(2, number / 10 % 10);
    tm.display(3, number % 10);
  }
  if (string(topic) == "topicName/led") {
    Serial.println("Changing output to ");
    if (stMessage == "on") {
      Serial.println("on");
      pinMode(ledPin, OUTPUT);
    }
  }
}