esp_ap_sta_test.ino

#include <ESP8266WiFi.h>

#define AP

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
#ifdef AP
  Serial.println("Access Point");
  WiFi.mode(WIFI_AP);
  WiFi.softAP("testAP", "", 1, false, 1);
#else
  Serial.println("Station");
  //  WiFi.mode(WIFI_STA);
  WiFi.begin("siec", "haslo");
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
}

#endif
}

void loop() {
  // put your main code here, to run repeatedly:

}