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+/**
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+ * This example takes a picture every 5s and print its size on serial monitor.
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+ */
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+
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+// =============================== SETUP ======================================
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+
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+// 1. Board setup (Uncomment):
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+// #define BOARD_WROVER_KIT
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+// #define BOARD_ESP32CAM_AITHINKER
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+// #define BOARD_ESP32S3_WROOM
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+
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+/**
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+ * 2. Kconfig setup
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+ *
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+ * If you have a Kconfig file, copy the content from
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+ * https://github.com/espressif/esp32-camera/blob/master/Kconfig into it.
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+ * In case you haven't, copy and paste this Kconfig file inside the src directory.
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+ * This Kconfig file has definitions that allows more control over the camera and
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+ * how it will be initialized.
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+ */
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+
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+/**
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+ * 3. Enable PSRAM on sdkconfig:
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+ *
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+ * CONFIG_ESP32_SPIRAM_SUPPORT=y
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+ *
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+ * More info on
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+ * https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/kconfig.html#config-esp32-spiram-support
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+ */
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+
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+// ================================ CODE ======================================
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+
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+#include <esp_log.h>
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+#include <esp_system.h>
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+#include <nvs_flash.h>
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+#include <sys/param.h>
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+#include <string.h>
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+
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+#include "freertos/FreeRTOS.h"
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+#include "freertos/task.h"
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+
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+// support IDF 5.x
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+#ifndef portTICK_RATE_MS
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+#define portTICK_RATE_MS portTICK_PERIOD_MS
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+#endif
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+
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+#include "esp_camera.h"
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+
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+#define BOARD_WROVER_KIT 1
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+
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+// WROVER-KIT PIN Map
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+#ifdef BOARD_WROVER_KIT
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+
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+#define CAM_PIN_PWDN -1 //power down is not used
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+#define CAM_PIN_RESET -1 //software reset will be performed
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+#define CAM_PIN_XCLK 21
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+#define CAM_PIN_SIOD 26
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+#define CAM_PIN_SIOC 27
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+
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+#define CAM_PIN_D7 35
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+#define CAM_PIN_D6 34
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+#define CAM_PIN_D5 39
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+#define CAM_PIN_D4 36
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+#define CAM_PIN_D3 19
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+#define CAM_PIN_D2 18
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+#define CAM_PIN_D1 5
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+#define CAM_PIN_D0 4
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+#define CAM_PIN_VSYNC 25
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+#define CAM_PIN_HREF 23
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+#define CAM_PIN_PCLK 22
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+
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+#endif
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+
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+// ESP32Cam (AiThinker) PIN Map
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+#ifdef BOARD_ESP32CAM_AITHINKER
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+
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+#define CAM_PIN_PWDN 32
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+#define CAM_PIN_RESET -1 //software reset will be performed
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+#define CAM_PIN_XCLK 0
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+#define CAM_PIN_SIOD 26
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+#define CAM_PIN_SIOC 27
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+
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+#define CAM_PIN_D7 35
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+#define CAM_PIN_D6 34
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+#define CAM_PIN_D5 39
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+#define CAM_PIN_D4 36
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+#define CAM_PIN_D3 21
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+#define CAM_PIN_D2 19
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+#define CAM_PIN_D1 18
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+#define CAM_PIN_D0 5
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+#define CAM_PIN_VSYNC 25
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+#define CAM_PIN_HREF 23
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+#define CAM_PIN_PCLK 22
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+
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+#endif
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+// ESP32S3 (WROOM) PIN Map
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+#ifdef BOARD_ESP32S3_WROOM
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+#define CAM_PIN_PWDN 38
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+#define CAM_PIN_RESET -1 //software reset will be performed
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+#define CAM_PIN_VSYNC 6
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+#define CAM_PIN_HREF 7
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+#define CAM_PIN_PCLK 13
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+#define CAM_PIN_XCLK 15
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+#define CAM_PIN_SIOD 4
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+#define CAM_PIN_SIOC 5
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+#define CAM_PIN_D0 11
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+#define CAM_PIN_D1 9
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+#define CAM_PIN_D2 8
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+#define CAM_PIN_D3 10
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+#define CAM_PIN_D4 12
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+#define CAM_PIN_D5 18
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+#define CAM_PIN_D6 17
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+#define CAM_PIN_D7 16
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+#endif
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+static const char *TAG = "example:take_picture";
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+
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+#if ESP_CAMERA_SUPPORTED
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+static camera_config_t camera_config = {
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+ .pin_pwdn = CAM_PIN_PWDN,
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+ .pin_reset = CAM_PIN_RESET,
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+ .pin_xclk = CAM_PIN_XCLK,
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+ .pin_sccb_sda = CAM_PIN_SIOD,
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+ .pin_sccb_scl = CAM_PIN_SIOC,
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+
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+ .pin_d7 = CAM_PIN_D7,
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+ .pin_d6 = CAM_PIN_D6,
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+ .pin_d5 = CAM_PIN_D5,
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+ .pin_d4 = CAM_PIN_D4,
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+ .pin_d3 = CAM_PIN_D3,
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+ .pin_d2 = CAM_PIN_D2,
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+ .pin_d1 = CAM_PIN_D1,
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+ .pin_d0 = CAM_PIN_D0,
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+ .pin_vsync = CAM_PIN_VSYNC,
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+ .pin_href = CAM_PIN_HREF,
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+ .pin_pclk = CAM_PIN_PCLK,
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+
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+ //XCLK 20MHz or 10MHz for OV2640 double FPS (Experimental)
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+ .xclk_freq_hz = 20000000,
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+ .ledc_timer = LEDC_TIMER_0,
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+ .ledc_channel = LEDC_CHANNEL_0,
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+
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+ .pixel_format = PIXFORMAT_RGB565, //YUV422,GRAYSCALE,RGB565,JPEG
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+ .frame_size = FRAMESIZE_QVGA, //QQVGA-UXGA, For ESP32, do not use sizes above QVGA when not JPEG. The performance of the ESP32-S series has improved a lot, but JPEG mode always gives better frame rates.
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+
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+ .jpeg_quality = 12, //0-63, for OV series camera sensors, lower number means higher quality
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+ .fb_count = 1, //When jpeg mode is used, if fb_count more than one, the driver will work in continuous mode.
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+ .fb_location = CAMERA_FB_IN_PSRAM,
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+ .grab_mode = CAMERA_GRAB_WHEN_EMPTY,
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+};
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+
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+static esp_err_t init_camera(void)
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+{
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+ //initialize the camera
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+ esp_err_t err = esp_camera_init(&camera_config);
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+ if (err != ESP_OK)
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+ {
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+ ESP_LOGE(TAG, "Camera Init Failed");
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+ return err;
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+ }
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+
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+ return ESP_OK;
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+}
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+#endif
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+
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+void take_photo(void)
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+{
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+#if ESP_CAMERA_SUPPORTED
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+ if(ESP_OK != init_camera()) {
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+ return;
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+ }
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+
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+ while (1)
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+ {
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+ ESP_LOGI(TAG, "Taking picture...");
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+ camera_fb_t *pic = esp_camera_fb_get();
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+
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+ // use pic->buf to access the image
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+ ESP_LOGI(TAG, "Picture taken! Its size was: %zu bytes", pic->len);
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+ esp_camera_fb_return(pic);
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+
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+ vTaskDelay(5000 / portTICK_RATE_MS);
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+ }
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+#else
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+ ESP_LOGE(TAG, "Camera support is not available for this chip");
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+ return;
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+#endif
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+}
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