#include <WiFi.h>

//要连接的WiFi热点名、WiFi热点密码
#define WIFI_AP "Wokwi-GUEST"
#define WIFI_PASSWORD ""

int lightPin = 2;

int status = WL_IDLE_STATUS;

void setup() {
  pinMode(lightPin, OUTPUT);
  Serial.begin(115200);
  InitWiFi();
}

void loop() {
  if ( WiFi.status() != WL_CONNECTED ) reconnect();

  Serial.println("AP connected!");
  digitalWrite(lightPin, HIGH);
  delay(500);
  digitalWrite(lightPin, LOW);
  delay(500);

}

void InitWiFi() {
  Serial.println("Connecting to AP ...");
  // 连接WiFi
  WiFi.mode(WIFI_STA);
  WiFi.begin(WIFI_AP, WIFI_PASSWORD);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("Connected to AP");
}

void reconnect() {
  // 循环直到重新连接成功
  status = WiFi.status();
  if ( status != WL_CONNECTED) {
    WiFi.begin(WIFI_AP, WIFI_PASSWORD);
    while (WiFi.status() != WL_CONNECTED) {
      delay(500);
      Serial.print(".");
    }
    Serial.println("Connected to AP");
  }
}