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take_picture.c
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take_picture.c
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/**
* This example takes a picture every 5s and print its size on serial monitor.
*/
// =============================== SETUP ======================================
// 1. Board setup (Uncomment):
// #define BOARD_WROVER_KIT
#define BOARD_ESP32CAM_AITHINKER
/**
* 2. Kconfig setup
*
* If you have a Kconfig file, copy the content from
* https://github.com/espressif/esp32-camera/blob/master/Kconfig into it.
* In case you haven't, copy and paste this Kconfig file inside the src directory.
* This Kconfig file has definitions that allows more control over the camera and
* how it will be initialized.
*/
/**
* 3. Enable PSRAM on sdkconfig:
*
CONFIG_ESP32_SPIRAM_SUPPORT=y
*
* More info on
* https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/kconfig.html#config-esp32-spiram-support
*/
// ================================ CODE ======================================
CONFIG_ESP32_SPIRAM_SUPPORT=y
#include <esp_event_loop.h>
#include <esp_log.h>
#include <esp_system.h>
#include <nvs_flash.h>
#include <sys/param.h>
#include <string.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_camera.h"
// WROVER-KIT PIN Map
#ifdef BOARD_WROVER_KIT
#define CAM_PIN_PWDN -1 //power down is not used
#define CAM_PIN_RESET -1 //software reset will be performed
#define CAM_PIN_XCLK 21
#define CAM_PIN_SIOD 26
#define CAM_PIN_SIOC 27
#define CAM_PIN_D7 35
#define CAM_PIN_D6 34
#define CAM_PIN_D5 39
#define CAM_PIN_D4 36
#define CAM_PIN_D3 19
#define CAM_PIN_D2 18
#define CAM_PIN_D1 5
#define CAM_PIN_D0 4
#define CAM_PIN_VSYNC 25
#define CAM_PIN_HREF 23
#define CAM_PIN_PCLK 22
#endif
// ESP32Cam (AiThinker) PIN Map
#ifdef BOARD_ESP32CAM_AITHINKER
#define CAM_PIN_PWDN 32
#define CAM_PIN_RESET -1 //software reset will be performed
#define CAM_PIN_XCLK 0
#define CAM_PIN_SIOD 26
#define CAM_PIN_SIOC 27
#define CAM_PIN_D7 35
#define CAM_PIN_D6 34
#define CAM_PIN_D5 39
#define CAM_PIN_D4 36
#define CAM_PIN_D3 21
#define CAM_PIN_D2 19
#define CAM_PIN_D1 18
#define CAM_PIN_D0 5
#define CAM_PIN_VSYNC 25
#define CAM_PIN_HREF 23
#define CAM_PIN_PCLK 22
#endif
static const char *TAG = "example:take_picture";
static camera_config_t camera_config = {
.pin_pwdn = CAM_PIN_PWDN,
.pin_reset = CAM_PIN_RESET,
.pin_xclk = CAM_PIN_XCLK,
.pin_sscb_sda = CAM_PIN_SIOD,
.pin_sscb_scl = CAM_PIN_SIOC,
.pin_d7 = CAM_PIN_D7,
.pin_d6 = CAM_PIN_D6,
.pin_d5 = CAM_PIN_D5,
.pin_d4 = CAM_PIN_D4,
.pin_d3 = CAM_PIN_D3,
.pin_d2 = CAM_PIN_D2,
.pin_d1 = CAM_PIN_D1,
.pin_d0 = CAM_PIN_D0,
.pin_vsync = CAM_PIN_VSYNC,
.pin_href = CAM_PIN_HREF,
.pin_pclk = CAM_PIN_PCLK,
//XCLK 20MHz or 10MHz for OV2640 double FPS (Experimental)
.xclk_freq_hz = 20000000,
.ledc_timer = LEDC_TIMER_0,
.ledc_channel = LEDC_CHANNEL_0,
.pixel_format = PIXFORMAT_RGB565, //YUV422,GRAYSCALE,RGB565,JPEG
.frame_size = FRAMESIZE_QQVGA, //QQVGA-UXGA Do not use sizes above QVGA when not JPEG
.jpeg_quality = 12, //0-63 lower number means higher quality
.fb_count = 2 //if more than one, i2s runs in continuous mode. Use only with JPEG
};
static esp_err_t init_camera()
{
//initialize the camera
esp_err_t err = esp_camera_init(&camera_config);
if (err != ESP_OK)
{
ESP_LOGE(TAG, "Camera Init Failed");
return err;
}
return ESP_OK;
}
void app_main()
{
init_camera();
while (1)
{
ESP_LOGI(TAG, "Taking picture...");
camera_fb_t *pic = esp_camera_fb_get();
// use pic->buf to access the image
ESP_LOGI(TAG, "Picture taken! Its size was: %zu bytes", pic->len);
vTaskDelay(5000 / portTICK_RATE_MS);
}
}