Basic Arduino sketch for ESP8266 including WifiManager and OTA update

esp8266-basis.ino

#include <ESP8266WiFi.h>
#include <ESP8266mDNS.h>
#include <ArduinoOTA.h>
#include <WiFiManager.h>

void setup() {
  Serial.begin(115200);
  Serial.println("Booting");

  WiFiManager wifiManager;
  wifiManager.autoConnect("esp8266-setup");

  // Port defaults to 8266
  // ArduinoOTA.setPort(8266);

  // Hostname defaults to esp8266-[ChipID]
  // ArduinoOTA.setHostname("my-esp8266-ota");

  ArduinoOTA.onStart([]() {
    Serial.println("Start OTA");
  });

  ArduinoOTA.onEnd([]() {
    Serial.println("End OTA");
  });

  ArduinoOTA.onProgress([](unsigned int progress, unsigned int total) {
    Serial.printf("Progress: %u%%\n", (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());
}

void loop() {
  ArduinoOTA.handle();

  // Your code follows here
}