Capturing Images with OV2640 and OV3660 on ESP32-S3

#include "esp_camera.h"

// Camera pin definitions — verify with your board schematic
#define CAM_PIN_PWDN    -1  // Power down pin (To be confirmed)
#define CAM_PIN_RESET   -1  // Hardware reset (To be confirmed)
#define CAM_PIN_XCLK    15  // To be confirmed
#define CAM_PIN_SIOD    4   // I2C SDA (To be confirmed)
#define CAM_PIN_SIOC    5   // I2C SCL (To be confirmed)
#define CAM_PIN_D7      16  // To be confirmed
#define CAM_PIN_D6      17  // To be confirmed
#define CAM_PIN_D5      18  // To be confirmed
#define CAM_PIN_D4      12  // To be confirmed
#define CAM_PIN_D3      10  // To be confirmed
#define CAM_PIN_D2      8   // To be confirmed
#define CAM_PIN_D1      9   // To be confirmed
#define CAM_PIN_D0      11  // To be confirmed
#define CAM_PIN_VSYNC   6   // To be confirmed
#define CAM_PIN_HREF    7   // To be confirmed
#define CAM_PIN_PCLK    13  // To be confirmed

camera_config_t config;

esp_err_t initCamera() {
  config.ledc_channel = LEDC_CHANNEL_0;
  config.ledc_timer   = LEDC_TIMER_0;
  config.pin_d0       = CAM_PIN_D0;
  config.pin_d1       = CAM_PIN_D1;
  config.pin_d2       = CAM_PIN_D2;
  config.pin_d3       = CAM_PIN_D3;
  config.pin_d4       = CAM_PIN_D4;
  config.pin_d5       = CAM_PIN_D5;
  config.pin_d6       = CAM_PIN_D6;
  config.pin_d7       = CAM_PIN_D7;
  config.pin_xclk     = CAM_PIN_XCLK;
  config.pin_pclk     = CAM_PIN_PCLK;
  config.pin_vsync    = CAM_PIN_VSYNC;
  config.pin_href     = CAM_PIN_HREF;
  config.pin_sscb_sda = CAM_PIN_SIOD;
  config.pin_sscb_scl = CAM_PIN_SIOC;
  config.pin_pwdn     = CAM_PIN_PWDN;
  config.pin_reset    = CAM_PIN_RESET;
  config.xclk_freq_hz = 20000000;
  config.pixel_format = PIXFORMAT_JPEG;
  config.frame_size   = FRAMESIZE_QVGA;  // 320x240
  config.jpeg_quality = 12;  // 0-63, lower = better quality
  config.fb_count     = 1;
  config.fb_location  = CAMERA_FB_IN_PSRAM;

  return esp_camera_init(&config);
}

void captureAndPrint() {
  camera_fb_t *fb = esp_camera_fb_get();
  if (!fb) {
    Serial.println("Camera capture failed");
    return;
  }
  Serial.printf("Captured image: %d bytes\n", fb->len);
  // Process fb->buf here...
  esp_camera_fb_return(fb);
}