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示例中需要把wifi名和密码写死在程序中，当我们换了一个wifi环境就需要重写上传程序，比较麻烦，而我们使用WiFiManager就可以动态给开发版配置网络

 打开工具-> 库管理 搜索 WiFiManager 选择下面这个安装

顶部 添加 #include <WiFiManager.h>，最下面添加 connectWifi 方法，把原来的wifi连接方法替换

// 连接wifi
void connectWifi()
{// 建立WiFiManager对象WiFiManager wifiManager;// wifiManager.resetSettings();// 自动连接WiFi。以下语句的参数是连接时的WiFi名称wifiManager.autoConnect("AutoConnectAP");Serial.println("");Serial.println("WiFi Connected!");Serial.println("");
}

 所有代码

#include "esp_camera.h"
#include <WiFi.h>
#include <WiFiManager.h>
//
// WARNING!!! PSRAM IC required for UXGA resolution and high JPEG quality
//            Ensure ESP32 Wrover Module or other board with PSRAM is selected
//            Partial images will be transmitted if image exceeds buffer size
//// Select camera model
//#define CAMERA_MODEL_WROVER_KIT // Has PSRAM
//#define CAMERA_MODEL_ESP_EYE // Has PSRAM
//#define CAMERA_MODEL_M5STACK_PSRAM // Has PSRAM
//#define CAMERA_MODEL_M5STACK_V2_PSRAM // M5Camera version B Has PSRAM
//#define CAMERA_MODEL_M5STACK_WIDE	// Has PSRAM
#define CAMERA_MODEL_AI_THINKER // Has PSRAM
//#define CAMERA_MODEL_TTGO_T_JOURNAL // No PSRAM#include "camera_pins.h"const char* ssid = "*********";
const char* password = "*********";void startCameraServer();void setup() {Serial.begin(115200);Serial.setDebugOutput(true);Serial.println();camera_config_t config;config.ledc_channel = LEDC_CHANNEL_0;config.ledc_timer = LEDC_TIMER_0;config.pin_d0 = Y2_GPIO_NUM;config.pin_d1 = Y3_GPIO_NUM;config.pin_d2 = Y4_GPIO_NUM;config.pin_d3 = Y5_GPIO_NUM;config.pin_d4 = Y6_GPIO_NUM;config.pin_d5 = Y7_GPIO_NUM;config.pin_d6 = Y8_GPIO_NUM;config.pin_d7 = Y9_GPIO_NUM;config.pin_xclk = XCLK_GPIO_NUM;config.pin_pclk = PCLK_GPIO_NUM;config.pin_vsync = VSYNC_GPIO_NUM;config.pin_href = HREF_GPIO_NUM;config.pin_sscb_sda = SIOD_GPIO_NUM;config.pin_sscb_scl = SIOC_GPIO_NUM;config.pin_pwdn = PWDN_GPIO_NUM;config.pin_reset = RESET_GPIO_NUM;config.xclk_freq_hz = 20000000;config.pixel_format = PIXFORMAT_JPEG;// if PSRAM IC present, init with UXGA resolution and higher JPEG quality//                      for larger pre-allocated frame buffer.if(psramFound()){config.frame_size = FRAMESIZE_UXGA;config.jpeg_quality = 10;config.fb_count = 2;} else {config.frame_size = FRAMESIZE_SVGA;config.jpeg_quality = 12;config.fb_count = 1;}#if defined(CAMERA_MODEL_ESP_EYE)pinMode(13, INPUT_PULLUP);pinMode(14, INPUT_PULLUP);
#endif// camera initesp_err_t err = esp_camera_init(&config);if (err != ESP_OK) {Serial.printf("Camera init failed with error 0x%x", err);return;}sensor_t * s = esp_camera_sensor_get();// initial sensors are flipped vertically and colors are a bit saturatedif (s->id.PID == OV3660_PID) {s->set_vflip(s, 1); // flip it backs->set_brightness(s, 1); // up the brightness just a bits->set_saturation(s, -2); // lower the saturation}// drop down frame size for higher initial frame rates->set_framesize(s, FRAMESIZE_QVGA);#if defined(CAMERA_MODEL_M5STACK_WIDE)s->set_vflip(s, 1);s->set_hmirror(s, 1);
#endifconnectWifi();startCameraServer();Serial.print("Camera Ready! Use 'http://");Serial.print(WiFi.localIP());Serial.println("' to connect");
}void loop() {// put your main code here, to run repeatedly:delay(10000);
}// 连接wifi
void connectWifi()
{// 建立WiFiManager对象WiFiManager wifiManager;// wifiManager.resetSettings();// 自动连接WiFi。以下语句的参数是连接时的WiFi名称wifiManager.autoConnect("AutoConnectAP");Serial.println("");Serial.println("WiFi Connected!");Serial.println("");
}

重新上传程序后，打开手机，可以看到 名叫 AutoConnectAP 的 wifi 名，点击连接，就可以给开发板配网，wifi信息会自动保存在开发板中，以后启动开发板无需重新配网