/* This code allows you to connect to a wifi network and send Hello World and wait for the response */
#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>

#ifndef STASSID
#define STASSID “your-ssid” // Name of the wifi you want to connect to
#define STAPSK “your-password” // The wifi password
#endif

const char* ssid = STASSID;
const char* password = STAPSK;

const char* host = “192.168.1.1”;
const uint16_t port = 3000;

ESP8266WiFiMulti WiFiMulti;

void setup() {
  Serial.begin(115200); // Serial monitor startup

  // Start WiFi connection
  WiFi.mode(WIFI_STA);
  WiFiMulti.addAP(ssid, password);

  Serial.println();
  Serial.println();
  Serial.print("Connection in progress... ”);

  while (WiFiMulti.run() != WL_CONNECTED) { // Wait until connection is established
    Serial.print(“.”);
    delay(500);
  }

  Serial.println(“”);
  Serial.println(“Connected to Wifi”);
  Serial.println("Your IP address: ”);
  Serial.println(WiFi.localIP());

  delay(500);
}


void loop() {
  Serial.print("connecting to ”);// Now we connect to send the message
  Serial.print(host);
  Serial.print(':');
  Serial.println(port);

  //Create a TCP connection
  WiFiClient client;

  if (!client.connect(host, port)) {
    Serial.println(“Connection attempt failed”);
    Serial.println(“Wait 5 seconds...”);
    delay(5000);
    return;
  }

  // This will send a request to the server
  client.println(“Hello World”);

// We wait for the server's response
  Serial.println("Here's the server's response: ”);
  String line = client.readStringUntil('\r');
  Serial.println(line);

  Serial.println(“Connection closed”);
  client.stop();

  Serial.println(“Wait 5 seconds...”);
  delay(5000);
}