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Connect Arduino Wemos D1 ESP8266 to Internet/Wi-Fi Router

Connect ESP8266 to Wi-Fi Router
Upload these code to your Arduino WeMos D1 ESP8266 W-Fi board.

#include <ESP8266WiFi.h>

//SSID of your network
char ssid[] = "myRouter"; //SSID of your Wi-Fi router
char pass[] = "myPassWord"; //Password of your Wi-Fi router

void setup()
{
  Serial.begin(115200);
  delay(10);

  // Connect to Wi-Fi network
  Serial.println();
  Serial.println();
  Serial.print("Connecting to...");
  Serial.println(ssid);

  WiFi.begin(ssid, pass);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("Wi-Fi connected successfully");
}

void loop () {}

Using ESP8266 to connect to Wi-Fi need to use the function of:

WiFi.begin(ssid, pass); // connect to target Wi-Fi

SSID is the name of the Wi-Fi you want to connect to. 

while (WiFi.status() != WL_CONNECTED)

WiFi.status can be check current connection condition, it will return like the status provided below:

WL_CONNECTED: assigned when connected to a WiFi network;
WL_NO_SHIELD: assigned when no WiFi shield is present;
WL_IDLE_STATUS: it is a temporary status assigned when WiFi.begin() is called and remains active until the number of attempts expires (resulting in WL_CONNECT_FAILED) or a connection is established (resulting in WL_CONNECTED);
WL_NO_SSID_AVAIL: assigned when no SSID are available;
WL_SCAN_COMPLETED: assigned when the scan networks is completed;
WL_CONNECT_FAILED: assigned when the connection fails for all the attempts;
WL_CONNECTION_LOST: assigned when the connection is lost;
WL_DISCONNECTED: assigned when disconnected from a network;

If we get a message: Wi-Fi connected successfully” means that we can link our ESP8266 to the internet!

Comments

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