NodeMCU V3 ESP8266

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WiFi Modes of Operation of ESP8266: There are three modes of WiFi Operation in the ESP8266 WiFi Module. Those are:

  1. Station Mode (STA)
  2. Soft Access Point (AP)
  3. Soft AP + Station

Station Mode

#include "ESP8266WiFi.h"

const char* ssid = "ChorkeOrg_2.4GHz";
const char* password = "academia";

void setup(void) {
  pinMode(D4, OUTPUT);
  Serial.begin(115200);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print("*");
  }

  Serial.println("");
  Serial.println("WiFi connection Successful");
  Serial.print("The IP Address of ESP8266 Module is: ");
  Serial.print(WiFi.localIP());
}

void loop() {
  digitalWrite(D4, LOW);
  delay(1000);
  digitalWrite(D4, HIGH);
  delay(1000);
}

References