ESP32CAM读取视频

硬件准备

1. esp32cam(我是淘宝买的，买的套装带烧录底板和一个OV2640的摄像头,价格33)
2. 数据线

   软件准备

3. Arduion配置ESP32开发板
   不懂怎么配置的点这里和这里
4. vscode + platformIO
   上述两个平台根据自己习惯来，新手推荐使用Arduion
   我这里使用的是vscode + platformIO

代码实现环境

1. 在platformIO中下载esp32-cam这个库
2. 打开Arduion中esp32中CAM的例子所在的文件夹然后复制所有文件到你platformIO的src文件夹下
   大致是这样：
   

   代码

   #include "esp_camera.h"
   #include <WiFi.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
   //
   //            You must select partition scheme from the board menu that has at least 3MB APP space.
   //            Face Recognition is DISABLED for ESP32 and ESP32-S2, because it takes up from 15 
   //            seconds to process single frame. Face Detection is ENABLED if PSRAM is enabled as well
   
   // ===================
   // Select camera model
   // ===================
   //#define CAMERA_MODEL_WROVER_KIT // Has PSRAM
   //#define CAMERA_MODEL_ESP_EYE // Has PSRAM
   //#define CAMERA_MODEL_ESP32S3_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_M5STACK_ESP32CAM // No PSRAM
   //#define CAMERA_MODEL_M5STACK_UNITCAM // No PSRAM
   #define CAMERA_MODEL_AI_THINKER // Has PSRAM
   //#define CAMERA_MODEL_TTGO_T_JOURNAL // No PSRAM
   // ** Espressif Internal Boards **
   //#define CAMERA_MODEL_ESP32_CAM_BOARD
   //#define CAMERA_MODEL_ESP32S2_CAM_BOARD
   //#define CAMERA_MODEL_ESP32S3_CAM_LCD
   
   #include "camera_pins.h"
   
   // ===========================
   // Enter your WiFi credentials
   // ===========================
   const char* ssid = "HONOR V20";
   const char* password = "yubaolin";
   
   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.frame_size = FRAMESIZE_UXGA;
     config.pixel_format = PIXFORMAT_JPEG; // for streaming
     //config.pixel_format = PIXFORMAT_RGB565; // for face detection/recognition
     config.grab_mode = CAMERA_GRAB_WHEN_EMPTY;
     config.fb_location = CAMERA_FB_IN_PSRAM;
     config.jpeg_quality = 12;
     config.fb_count = 1;
     
     // if PSRAM IC present, init with UXGA resolution and higher JPEG quality
     //                      for larger pre-allocated frame buffer.
     if(config.pixel_format == PIXFORMAT_JPEG){
       if(psramFound()){
         config.jpeg_quality = 10;
         config.fb_count = 2;
         config.grab_mode = CAMERA_GRAB_LATEST;
       } else {
         // Limit the frame size when PSRAM is not available
         config.frame_size = FRAMESIZE_SVGA;
         config.fb_location = CAMERA_FB_IN_DRAM;
       }
     } else {
       // Best option for face detection/recognition
       config.frame_size = FRAMESIZE_240X240;
   #if CONFIG_IDF_TARGET_ESP32S3
       config.fb_count = 2;
   #endif
     }
   
   #if defined(CAMERA_MODEL_ESP_EYE)
     pinMode(13, INPUT_PULLUP);
     pinMode(14, INPUT_PULLUP);
   #endif
   
     // camera init
     esp_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 saturated
     if (s->id.PID == OV3660_PID) {
       s->set_vflip(s, 1); // flip it back
       s->set_brightness(s, 1); // up the brightness just a bit
       s->set_saturation(s, -2); // lower the saturation
     }
     // drop down frame size for higher initial frame rate
     if(config.pixel_format == PIXFORMAT_JPEG){
       s->set_framesize(s, FRAMESIZE_QVGA);
     }
   
   #if defined(CAMERA_MODEL_M5STACK_WIDE) || defined(CAMERA_MODEL_M5STACK_ESP32CAM)
     s->set_vflip(s, 1);
     s->set_hmirror(s, 1);
   #endif
   
   #if defined(CAMERA_MODEL_ESP32S3_EYE)
     s->set_vflip(s, 1);
   #endif
   
     WiFi.begin(ssid, password);
     WiFi.setSleep(false);
   
     while (WiFi.status() != WL_CONNECTED) {
       delay(500);
       Serial.print(".");
     }
     Serial.println("");
     Serial.println("WiFi connected");
   
     startCameraServer();
   
     Serial.print("Camera Ready! Use 'http://");
     Serial.print(WiFi.localIP());
     Serial.println("' to connect");
   }
   
   void loop() {
     // Do nothing. Everything is done in another task by the web server
     delay(10000);
   }

   结果

   

赏

谢谢观看