OTA paload for blinking a LED

payloadOTA.ino

#include <ESP8266WiFi.h>
#include <ESP8266mDNS.h>
#include <WiFiUdp.h>
#include <ArduinoOTA.h>
// Replace with your network credentials
const char* ssid = "YOUR_SSID";
const char* password = "YOUR_PASSWORD";
const int ESP_BUILTIN_LED = 2;
void setup() {
 Serial.begin(115200);
 Serial.println("Booting");
 WiFi.mode(WIFI_STA);
 WiFi.begin(ssid, password);
 while (WiFi.waitForConnectResult() != WL_CONNECTED) {
 Serial.println("Connection Failed! Rebooting…");
 delay(5000);
 ESP.restart();
 } 
ArduinoOTA.onStart([]() {
 Serial.println("Start"); });
 ArduinoOTA.onEnd([]() { Serial.println("\nEnd"); }); ArduinoOTA.onProgress([](unsigned int progress, unsigned int total) { Serial.printf("Progress: %u%%\r", (progress / (total / 100)));
 });
 ArduinoOTA.onError([](ota_error_t error) { 
Serial.printf("Error[%u]: ", error);
 if (error == OTA_AUTH_ERROR)
  Serial.println("Auth Failed");
 else if (error == OTA_BEGIN_ERROR)
  Serial.println("Begin Failed");
 else if (error == OTA_CONNECT_ERROR) 
  Serial.println("Connect Failed");
 else if (error == OTA_RECEIVE_ERROR) 
  Serial.println("Receive Failed");
 else if (error == OTA_END_ERROR) 
  Serial.println("End Failed"); });
 ArduinoOTA.begin();
 Serial.println("Ready");
 Serial.print("IP address: ");
 Serial.println(WiFi.localIP());
 pinMode(ESP_BUILTIN_LED, OUTPUT);
}
void loop() { 
 ArduinoOTA.handle();
 digitalWrite(ESP_BUILTIN_LED, LOW);
 delay(1000);
 digitalWrite(ESP_BUILTIN_LED, HIGH);
 delay(1000);
}