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ESP8266 (ESP-01/01S) Microcontrollers

Setup WiFi SSID and Password with Arduino IDE

// Import required libraries
#include <ESP8266WiFi.h>

// Wifi parameters
const char* ssid = "HackerWifi6";
const char* password = "sklim01@@";

void setup() {
  // put your setup code here, to run once:
  // Start Serial
  Serial.begin(115200);
  // Connect to WiFi
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected");
  // Print the IP address
  Serial.println(WiFi.localIP());
}

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

}