#include <ESP8266WiFi.h>

const char* ssid = "NonameWiFi" ;     // SSID is set
const char* password = "12345678";  // Password is set

int ledPin = 0;

void setup() {
    Serial.begin(115200);
    Serial.println();
    Serial.print("Connecting to ");
    Serial.println(ssid);
    pinMode(ledPin, OUTPUT);
    digitalWrite(ledPin, 0);
    WiFi.begin(ssid,password);
    while (WiFi.status() != WL_CONNECTED){
      Serial.print(".");
      delay(500);
      }
    Serial.println("");
    Serial.println("WiFi connected");
    Serial.println("IP address : ");
    Serial.println(WiFi.localIP());   
}

void loop() {
    digitalWrite(ledPin, 0);
    while(WiFi.status() != WL_CONNECTED)
    {
        digitalWrite(ledPin, 0);
        delay(400);
        Serial.println("connection WiFi failed");
        digitalWrite(ledPin, 1);
        delay(100);
    };
}