ESP32 连接Wifi

手动配置wifi节点

这种方式是在代码中配置好wifi的名称和密码，在刷到ESP32中，开机后自动连接此wifi

#include <WiFi.h>

const char* ssid     = "SSID";         // The SSID (name) of the Wi-Fi network you want to connect to
const char* password = "PASSWORD";     // The password of the Wi-Fi network

void setup()
{

  Serial.begin(115200);

  WiFi.begin(ssid, password);             // Connect to the network
  Serial.print("Connecting to ");
  Serial.print(ssid);

  while (WiFi.status() != WL_CONNECTED) { // Wait for the Wi-Fi to connect
    delay(500);
    Serial.print('.');
  }

  Serial.println('\n');
  Serial.println("Connection established!");
  Serial.print("IP address:\t");
  Serial.println(WiFi.localIP());         // Send the IP address of the ESP8266 to the computer
}

void loop()
{

}

这种配置方式简单，但是不够灵活。

AP模式，通过手机配置Wifi

通过手机APP配网SmartConfig

TI发明的“ SmartConfig”。这种方式下，手机APP广播wifi信息，ESP32接收到信息后配置wifi信息。

缺点是用户需安装APP。

手机安装APP

Android: IOT_Espressif
IOS: Espressif Esptouch

ESP32 代码

#include "WiFi.h"

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

  //Init WiFi as Station, start SmartConfig
  WiFi.mode(WIFI_AP_STA);
  WiFi.beginSmartConfig();

  //Wait for SmartConfig packet from mobile
  Serial.println("Waiting for SmartConfig.");
  while (!WiFi.smartConfigDone()) {
    delay(500);
    Serial.print(".");
  }

  Serial.println("");
  Serial.println("SmartConfig received.");

  //Wait for WiFi to connect to AP
  Serial.println("Waiting for WiFi");
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println("WiFi Connected.");

  Serial.print("IP Address: ");
  Serial.println(WiFi.localIP());
}

void loop() {
  // put your main code here, to run repeatedly:

}