WIFI04_多個SSID自動連接_ESP32 NodeMCU 32S

WIFI04_多個SSID自動連接_ESP32 NodeMCU 32S

#include <WiFi.h>
#include <WiFiMulti.h>
WiFiMulti wifiMulti;
#define LED_BUILTIN 2   // 連接到WIFI時，亮內建的LED

void setup()
{
  pinMode(LED_BUILTIN, OUTPUT);
  digitalWrite(LED_BUILTIN,LOW) ;
  Serial.begin(9600);
  delay(10);

    wifiMulti.addAP("clive_lef", "12345678");
    wifiMulti.addAP("clive_1F", "12345678");
    wifiMulti.addAP("book", "12345678");
    
    Serial.println("Connecting Wifi...");
    if(wifiMulti.run() == WL_CONNECTED) {  //連接多個WIFI
      delay(50);
      Serial.println("");
      Serial.print("Successful Connecting to Access Point:");
      Serial.println(WiFi.SSID());
      Serial.print("SSID　Signal strength:");
      Serial.println(WiFi.RSSI());//WiFi.RSSI()訊號強度
      Serial.println("WiFi connected");
      Serial.print("IP address: ");
      Serial.println(WiFi.localIP());//WiFi.localIP()連接到的IP
      digitalWrite(LED_BUILTIN,HIGH) ; //成功時亮內建的LED
    }
}

void loop()
{

}