🔧 ESP32 联网实战：WiFi 连接与 HTTP 请求

#include 
#include 
const char* ssid = "YourWiFi";
const char* password = "YourPassword";
WiFiClient client;
void setup() {
  Serial.begin(115200); Serial.print("连接 WiFi");
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) { delay(500); Serial.print("."); }
  Serial.println("\nIP: " + WiFi.localIP().toString());
  HTTPClient http; http.begin("http://httpbin.org/get");
  int code = http.GET();
  if (code > 0) { Serial.printf("HTTP %d\n", code); Serial.println(http.getString().substring(0,150)); }
  http.end();
}
void loop() { delay(30000); if (WiFi.status() != WL_CONNECTED) WiFi.reconnect(); }