Fix app_httpd.cpp's flash pinout declaration.

Flash pinout had to be declared manually, not using the data from <camera_pins.h>, not following DRY.
The change enables <app_httpd.cpp> to get what the board is from the file <config.h>, and properly pull the flash pinout variable.

Author: Kuuh4

Diff for: libraries/ESP32/examples/Camera/CameraWebServer/CameraWebServer.ino

@@ -1,43 +1,16 @@
+#include "config.h"
+
+
 #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_M5STACK_CAMS3_UNIT  // Has PSRAM
-//#define CAMERA_MODEL_AI_THINKER // Has PSRAM
-//#define CAMERA_MODEL_TTGO_T_JOURNAL // No PSRAM
-//#define CAMERA_MODEL_XIAO_ESP32S3 // Has PSRAM
-// ** Espressif Internal Boards **
-//#define CAMERA_MODEL_ESP32_CAM_BOARD
-//#define CAMERA_MODEL_ESP32S2_CAM_BOARD
-//#define CAMERA_MODEL_ESP32S3_CAM_LCD
-//#define CAMERA_MODEL_DFRobot_FireBeetle2_ESP32S3 // Has PSRAM
-//#define CAMERA_MODEL_DFRobot_Romeo_ESP32S3 // Has PSRAM
 #include "camera_pins.h"
 
-// ===========================
-// Enter your WiFi credentials
-// ===========================
-const char *ssid = "**********";
-const char *password = "**********";
+//==========================================================
+// Please refer to <config.h> to setup wifi and board model.
+//==========================================================
+
+const char *ssid = WIFI_SSID;
+const char *password = WIFI_PASSWORD;
 
 void startCameraServer();
 void setupLedFlash(int pin);
@@ -68,8 +41,8 @@ void setup() {
   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.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;

Diff for: libraries/ESP32/examples/Camera/CameraWebServer/app_httpd.cpp

@@ -11,6 +11,8 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+#include "config.h"
+
 #include "esp_http_server.h"
 #include "esp_timer.h"
 #include "esp_camera.h"
@@ -19,6 +21,7 @@
 #include "esp32-hal-ledc.h"
 #include "sdkconfig.h"
 #include "camera_index.h"
+#include "camera_pins.h"
 
 #if defined(ARDUINO_ARCH_ESP32) && defined(CONFIG_ARDUHAL_ESP_LOG)
 #include "esp32-hal-log.h"
@@ -30,7 +33,7 @@
 // LED FLASH setup
 #if CONFIG_LED_ILLUMINATOR_ENABLED
 
-#define LED_LEDC_GPIO            22  //configure LED pin
+#define LED_LEDC_GPIO LED_GPIO_NUM
 #define CONFIG_LED_MAX_INTENSITY 255
 
 int led_duty = 0;