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ESP32 스타터 키트
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이번 프로젝트는 ESP32-CAM을 사용하여 사진을 찍고 SD 카드에 저장해보겠습니다.
ESP32, 확장 보드가 필요해요.

https://docs.sunfounder.com/projects/esp32-starter-kit/en/latest/_static/video/plugin_camera.mp4



Picture file name: /picture9.jpg
Saved file to path: /picture9.jpg
Going to sleep now


/*********
Rui Santos
Complete project details at <https://RandomNerdTutorials.com/esp32-cam-take-photo-save-microsd-card>
IMPORTANT!!!
- Select Board "AI Thinker ESP32-CAM"
- GPIO 0 must be connected to GND to upload a sketch
- After connecting GPIO 0 to GND, press the ESP32-CAM on-board RESET button to put your board in flashing mode
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files.
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
*********/
#include "esp_camera.h"
#include "Arduino.h"
#include "FS.h" // SD Card ESP32
#include "SD_MMC.h" // SD Card ESP32
#include "soc/soc.h" // Disable brownour problems
#include "soc/rtc_cntl_reg.h" // Disable brownour problems
#include "driver/rtc_io.h"
#include <EEPROM.h> // read and write from flash memory
// define the number of bytes you want to access
#define EEPROM_SIZE 1
// Pin definition for CAMERA_MODEL_AI_THINKER
#define PWDN_GPIO_NUM 32
#define RESET_GPIO_NUM -1
#define XCLK_GPIO_NUM 0
#define SIOD_GPIO_NUM 26
#define SIOC_GPIO_NUM 27
#define Y9_GPIO_NUM 35
#define Y8_GPIO_NUM 34
#define Y7_GPIO_NUM 39
#define Y6_GPIO_NUM 36
#define Y5_GPIO_NUM 21
#define Y4_GPIO_NUM 19
#define Y3_GPIO_NUM 18
#define Y2_GPIO_NUM 5
#define VSYNC_GPIO_NUM 25
#define HREF_GPIO_NUM 23
#define PCLK_GPIO_NUM 22
int pictureNumber = 0;
void setup() {
WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0); //disable brownout detector
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.pixel_format = PIXFORMAT_JPEG;
if (psramFound()) {
config.frame_size = FRAMESIZE_UXGA; // FRAMESIZE_ + QVGA|CIF|VGA|SVGA|XGA|SXGA|UXGA
config.jpeg_quality = 10;
config.fb_count = 2;
} else {
config.frame_size = FRAMESIZE_SVGA;
config.jpeg_quality = 12;
config.fb_count = 1;
}
// Init Camera
esp_err_t err = esp_camera_init(&config);
if (err != ESP_OK) {
Serial.printf("Camera init failed with error 0x%x", err);
return;
}
//Serial.println("Starting SD Card");
if (!SD_MMC.begin()) {
Serial.println("SD Card Mount Failed");
return;
}
uint8_t cardType = SD_MMC.cardType();
if (cardType == CARD_NONE) {
Serial.println("No SD Card attached");
return;
}
// initialize EEPROM with predefined size
EEPROM.begin(EEPROM_SIZE);
pictureNumber = EEPROM.read(0) + 1;
for (int shoot = 0; shoot < 5; shoot++) {
camera_fb_t *fb = NULL;
// Take Picture with Camera
fb = esp_camera_fb_get();
if (!fb) {
Serial.println("Camera capture failed");
return;
}
// Path where new picture will be saved in SD Card
String path = "/picture" + String(pictureNumber) + ".jpg";
fs::FS &fs = SD_MMC;
// Serial.printf("Picture file name: %s\\n", path.c_str());
File file = fs.open(path.c_str(), FILE_WRITE);
if (!file) {
Serial.println("Failed to open file in writing mode");
} else {
file.write(fb->buf, fb->len); // Write image data to file
if (shoot == 4) {
Serial.printf("Saved file to path: %s\\n", path.c_str());
}else{
Serial.printf("Shooting... \\n");
}
EEPROM.write(0, pictureNumber); // Update the picture number in EEPROM
EEPROM.commit();
}
file.close(); // Close the file
esp_camera_fb_return(fb); // Return the frame buffer back to the camera driver
delay(200); // Short delay between shots
}
// Turns off the ESP32-CAM white on-board LED (flash) connected to GPIO 4
pinMode(4, OUTPUT);
digitalWrite(4, LOW);
rtc_gpio_hold_en(GPIO_NUM_4);
// Put the ESP32-CAM to deep sleep
delay(2000);
Serial.println("Going to sleep now");
delay(2000);
esp_deep_sleep_start();
Serial.println("This will never be printed");
}
void loop() {
// Empty loop as we are putting the ESP32-CAM to deep sleep
}
#include "esp_camera.h"
#include "Arduino.h"
#include "FS.h" // SD Card ESP32
#include "SD_MMC.h" // SD Card ESP32
#include "soc/soc.h" // Disable brownour problems
#include "soc/rtc_cntl_reg.h" // Disable brownour problems
#include "driver/rtc_io.h"
#include <EEPROM.h> // read and write from flash memory
ESP32, 파일 시스템(FS), SD 카드 및 EEPROM에 필요한 라이브러리를 포함합니다.
#define PWDN_GPIO_NUM 32
#define RESET_GPIO_NUM -1
#define XCLK_GPIO_NUM 0
#define SIOD_GPIO_NUM 26
#define SIOC_GPIO_NUM 27
#define Y9_GPIO_NUM 35
#define Y8_GPIO_NUM 34
#define Y7_GPIO_NUM 39
#define Y6_GPIO_NUM 36
#define Y5_GPIO_NUM 21
#define Y4_GPIO_NUM 19
#define Y3_GPIO_NUM 18
#define Y2_GPIO_NUM 5
#define VSYNC_GPIO_NUM 25
#define HREF_GPIO_NUM 23
#define PCLK_GPIO_NUM 22
카메라 모듈에 대한 ESP32-CAM의 핀 연결을 나타내는 상수를 설정합니다.
int pictureNumber = 0;
촬영된 사진의 수를 저장합니다.
setup() 함수WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0); //disable brownout detector
Serial.begin(115200);
camra_config_t 로 설정됩니다.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.pixel_format = PIXFORMAT_JPEG;
esp_err_t err = esp_camera_init(&config);
if (err != ESP_OK) {
Serial.printf("Camera init failed with error 0x%x", err);
return;
}
if (!SD_MMC.begin()) {
Serial.println("SD Card Mount Failed");
return;
}
uint8_t cardType = SD_MMC.cardType();
if (cardType == CARD_NONE) {
Serial.println("No SD Card attached");
return;
}
fb = esp_camera_fb_get();
if (!fb) {
Serial.println("Camera capture failed");
return;
}
EEPROM.begin(EEPROM_SIZE);
pictureNumber = EEPROM.read(0) + 1;
String path = "/picture" + String(pictureNumber) + ".jpg";
fs::FS &fs = SD_MMC;
Serial.printf("Picture file name: %s\\n", path.c_str());
File file = fs.open(path.c_str(), FILE_WRITE);
if (!file) {
Serial.println("Failed to open file in writing mode");
} else {
file.write(fb->buf, fb->len); // payload (image), payload length
Serial.printf("Saved file to path: %s\\n", path.c_str());
EEPROM.write(0, pictureNumber);
EEPROM.commit();
}
file.close();
esp_camera_fb_return(fb);
pinMode(4, OUTPUT);
digitalWrite(4, LOW);
rtc_gpio_hold_en(GPIO_NUM_4);