esp8266连接wifi的三种方式代码

以下是 esp8266 连接 WiFi 的三种方式的代码：

方式一：使用密码连接 Wi-Fi

#include <ESP8266WiFi.h>

const char* ssid = "your_SSID";
const char* password = "your_PASSWORD";

void setup() {
  Serial.begin(9600);
  delay(10);

  // Connect to Wi-Fi network with SSID and password
  Serial.print("Connecting to ");
  Serial.println(ssid);
  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println("");
  Serial.println("WiFi connected");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
}

void loop() {
  // do nothing
}

方式二：使用 WPS 连接 Wi-Fi

#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WiFiMulti.h>
#include <ESP8266WiFiGeneric.h>

#define WPS_TIMEOUT 30

void setup() {
  Serial.begin(9600);
  Serial.println();
  Serial.println("Starting WPS config");

  WiFi.disconnect();
  WiFi.mode(WIFI_STA);
  Serial.println("WPS: START");
  WiFi.beginWPSConfig();
  Serial.print("WPS: WAIT");
  int ticks = 0;
  while (WiFi.status() != WL_CONNECTED && ticks++ < WPS_TIMEOUT) {
    delay(1000);
    Serial.print(".");
  }
  Serial.println();

  if (WiFi.status() == WL_CONNECTED) {
    Serial.println("WPS: Done!");
    Serial.print("IP address: ");
    Serial.println(WiFi.localIP());
  }
  else {
    Serial.println("WPS: Timeout!");
  }
}

void loop() {
  // do nothing
}

方式三：使用 WiFiManager 一键连接 Wi-Fi

#include <DNSServer.h>
#include <ESP8266WebServer.h>
#include <WiFiManager.h>         

void setup() {
  Serial.begin(115200);
  WiFiManager wifiManager; 
  wifiManager.autoConnect("AP-NAME", "AP-PASSWORD");

  Serial.println("WiFi Connected");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
}

void loop() {
  // do nothing
}

注意：以上代码需要在 Arduino IDE 中安装相应的库才能正常运行，具体请参考相应的文档。