![\"ESP32-CAM](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2023\/01\/ESP32-CAM-Phot-MicroSD-Card-Data-Time.jpg?resize=1200%2C675&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\nNew to the ESP32-CAM? <\/strong>Check our eBook: Build ESP32-CAM Projects<\/a>.<\/p>\n\n\n\n Before proceeding with this guide, check the following prerequisites.<\/p>\n\n\n\n For this project, we’ll be using an ESP32-CAM AI-Thinker board.<\/p>\n\n\n If you’re not familiar with the ESP32-CAM, you can follow the next tutorials:<\/p>\n\n\n\n You can also use a different ESP32 Camera board, you just need to make sure it supports a microSD card and that you adjust the right pinout on the code. This is only compatible with OV2640 cameras.<\/p>\n\n\n\n We\u2019ll program the ESP32 board using Arduino IDE. So you need the Arduino IDE installed as well as the ESP32 add-on. You can follow the next tutorial to install the ESP32 add-on, if you haven\u2019t already:<\/p>\n\n\n\n We’ll save the photos taken with the ESP32-CAM on the microSD card. Your microSD card must be formatted as FAT32<\/strong>.<\/p>\n\n\n\n To get familiar with handling files with the microSD card and the ESP32, you can take a look at the following tutorial:<\/p>\n\n\n\n We’ll use the current date and time on the pictures’ filenames. We have a detailed tutorial explaining how to set timezone and daylight saving time when getting time from an NTP server using the ESP32:<\/p>\n\n\n\n The following diagram shows a high-level overview of the example we’ll build.<\/p>\n\n\n In this tutorial, we’ll show you a simple example that does the following:<\/p>\n\n\n\n Using date and time on the picture filename has several advantages:<\/p>\n\n\n\n To follow this tutorial you need an ESP32 camera module that supports a microSD card, the microSD card itself, and hardware to upload code to the board (it can be the ESP32-CAM MB programmer, or an FTDI programmer).<\/p>\n\n\n\n You can use the preceding links or go directly to MakerAdvisor.com\/tools<\/a> to find all the parts for your projects at the best price!<\/p> Copy the following code to your Arduino IDE. Before uploading the code to your board, you need to insert your SSID and password, and timezone string<\/strong> to set the correct timezone for your location (more about setting the timezone string below<\/a>).<\/p>\n\n\n View raw code<\/a><\/p>\n\n\n\n Continue reading to learn how the code works, or skip to the Demonstration <\/a>section.<\/p>\n\n\n\n First, include the required libraries to handle the camera, microSD card, and time.<\/p>\n\n\n\n Insert your network credentials on the following variables.<\/p>\n\n\n\n Insert your timezone string on the myTimezone<\/span> variable. You can check a list of timezone string variables<\/a> here. For example, I live in Porto. The timezone is Europe\/Lisbon. From the list of timezone string variables, I see that the timezone string variable for my location is WET0WEST,M3.5.0\/1,M10.5.0<\/span><\/p>\n\n\n\n Then, include the pin definition for the camera model we\u2019re using. For the ESP32\u2011CAM AI-Thinker module, this is the pin definition (change it if you’re using a different ESP32 camera model):<\/p>\n\n\n\n You can find the pin definition for several different ESP32 camera boards here: ESP32-CAM Camera Boards: Pin and GPIOs Assignment Guide<\/a>.<\/p>\n\n\n\n The following line is needed to save the camera configurations. We’ll add the pin definition and the image settings later in the code.<\/p>\n\n\n\n The configInitCamera()<\/span> function, starts by assigning the GPIOs you\u2019ve defined earlier as well as the picture format.<\/p>\n\n\n\n The picture format is defined in the following line<\/p>\n\n\n\n It can be set to one of the following formats:<\/p>\n\n\n\n Define the frame size, image quality, and the number of pictures saved in the frame buffer:<\/p>\n\n\n\n In case the camera model supports PSRAM, we set the frame size to UXGA (1600×1200) and the image quality to 1.<\/p>\n\n\n\n You can set the frame size to one of these options:<\/p>\n\n\n\n The image quality can be a number between 0 and 63. A lower number means higher quality.<\/p>\n\n\n\n Important: <\/strong>very low numbers for image quality, especially at higher resolution, can make the ESP32-CAM crash, or it may not be able to take the photos correctly. So, if you notice that the images taken with the ESP32-CAM are cut in half or with strange colors, that’s probably a sign that you need to lower the quality (select a higher number like 10).<\/p>\n\n\n\n The following lines initialize the camera with the configurations you\u2019ve set up previously. If the camera doesn\u2019t initialize successfully, this will return an error message.<\/p>\n\n\n\n The initWiFi()<\/span> function connects your board to your local network using the credentials you’ve set up previously.<\/p>\n\n\n\n The setTimezone()<\/span> function will set the TZ<\/span> environmental variable with the correct timezone. call setenv(\u201cTZ\u201d, timezone<\/strong>, 1)<\/span>, where timezone<\/strong> is one of the timezones listed here<\/a>. Then, call tzset()<\/span> to update to that timezone. You should already have defined your timezone earlier in the code (myTimezone<\/span> variable).<\/p>\n\n\n\n The initTime()<\/span> function connects the ESP32-CAM to the NTP server and sets the correct timezone.<\/p>\n\n\n\n The whole purpose of this tutorial is to save pictures to the microSD card that include the date and time in the picture filename. The filename will be in the following format:<\/p>\n\n\n\n The getPictureFilename()<\/span> function gets the current date and time and outputs a string that can be used as a name for the picture filename.<\/p>\n\n\n\n First, we get the date and time:<\/p>\n\n\n\n Then, we convert the timeinfo<\/span> variable to a String in the following format Y-m-d_H-M-S<\/span> and print the result:<\/p>\n\n\n\n After having the date and time in a String format, we can concatenate it with “picture” and “.jpg”, which is the picture format. <\/p>\n\n\n\n Finally, we return the filename:<\/p>\n\n\n\n The initMicroSDCard()<\/span> function initializes the microSD card. It returns an error message in case the initialization is not successful.<\/p>\n\n\n\n The next lines return an error in case there isn\u2019t a microSD card attached.<\/p>\n\n\n\n To take and save a picture, we created the takeSavePhoto()<\/span> function.<\/p>\n\n\n\n First, it starts by taking a picture using the esp_camera_fb_get()<\/span> function.<\/p>\n\n\n\n This previous line creates a frame buffer fb<\/span> that contains the image. <\/p>\n\n\n\n If you’re getting old pictures when you take a photo, it might mean that the picture buffer is saving more than one picture. To prevent that, you can uncomment the following lines in the code:<\/p>\n\n\n\n In case the capture fails, we print an error message and restart the board (restarting the board is optional, you can handle the error differently if you prefer, like trying to take another picture).<\/p>\n\n\n\n After taking the picture, we’ll call the getPictureFilename()<\/span> function to get a filename for the picture with the current timestamp.<\/p>\n\n\n\n Now that we have the picture (frame buffer fb<\/span>), and the picture filename we can save it on the micro SD card.<\/p>\n\n\n\n Open the microSD card in writing mode and create a file with the filename we’ve defined previously (it’s on the path<\/span> variable):<\/p>\n\n\n\n In case we’re not able the open the file (due to an error on the microSD card, or in creating the file), we print an error message.<\/p>\n\n\n\n Save the image by passing as arguments the frame buffer and its length to the write()<\/span> method.<\/p>\n\n\n\n After that, close the file:<\/p>\n\n\n\n Finally, call esp_camera_fb_return(fb)<\/span> to clear the fb<\/span> buffer, so that it\u2019s available to use for the next picture.<\/p>\n\n\n\n In the setup()<\/span>, initialize the Serial Monitor, initialize Wi-Fi, set the timezone, configure and initialize the camera, and initialize the microSD card.<\/p>\n\n\n\n In the loop()<\/span>, call the takeSavePhoto()<\/span> function to take a picture and save it on the microSD card. The picture name will already include the current timestamp.<\/p>\n\n\n\n This function is called over and over again in the loop()<\/span> every 10 seconds.<\/p>\n\n\n\n We do this for demonstration purposes. Now, you should be able to use the takeSavePhoto()<\/span> function in your own projects to take pictures with a unique filename.<\/p>\n\n\n\n After inserting your network credentials and timezone string, upload the code to your board.<\/p>\n\n\n\n If you have an ESP32-CAM AI-Thinker, you should select AI Thinker ESP32-CAM<\/strong> in the Tools<\/strong>> Board <\/strong>menu.<\/p>\n\n\n After that, select the COM <\/strong>port in Tools <\/strong>> Port<\/strong>.<\/p>\n\n\n\n Finally, upload the code.<\/p>\n\n\n If you’re having issues uploading the code, check our troubleshooting guide: ESP32-CAM Troubleshooting Guide: Most Common Problems Fixed<\/a>.<\/p>\n\n\n\n After successfully uploading the code to the board, open the Serial Monitor at a baud rate of 115200. Press the RST button so that it restarts the board and it starts running the code.<\/p>\n\n\n\n Don’tn forget to insert a microSD card on the ESP32-CAM microSD card slot.<\/strong><\/p>\n\n\n\n Every 10 seconds, the flash will go on and it will save a picture to the microSD card. Let the code run for a while so that you get a considerable amount of pictures.<\/p>\n\n\n\n In the Serial Monitor, you should get something as shown below.<\/p>\n\n\n Then, insert the microSD card into your computer to see the captured photos.<\/p>\n\n\n The photos should have the date and time in its name. For example:<\/p>\n\n\n\n This means that this picture was taken on:<\/p>\n\n\n\n In this project, you learned how to request the date and time (with the correct timezone and daylight saving time) from the internet using the ESP32-CAM and use that information to name your pictures. This way, you know what time and date a certain picture was taken, and you don\u2019t have to worry about overwriting photos on the microSD card.<\/p>\n\n\n\n For a detailed tutorial about getting date and time with the ESP32 and setting the timezone, we recommend the following tutorial:<\/p>\n\n\n\n To learn more about the ESP32-CAM and build more projects, we take a look at our eBook:<\/p>\n\n\n\nPrerequisites<\/h2>\n\n\n\n
ESP32-CAM<\/strong><\/h3>\n\n\n\n
![\"ESP32-CAM](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2020\/03\/ESP32-CAM-External-Antenna-connected.jpg?resize=1024%2C576&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\n
Arduino IDE<\/h3>\n\n\n
![\"Arduino](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2024\/06\/arduino-ide-2.jpg?resize=204%2C204&quality=100&strip=all&ssl=1\")
<\/a><\/figure><\/div>\n\n\n\n
MicroSD Card<\/h3>\n\n\n\n
\n
Getting Date and Time with the ESP32 (Accurate Timezone and Daylight Saving Time)<\/h3>\n\n\n\n
\n
Project Overview<\/h2>\n\n\n\n
![\"ESP32-CAM](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2023\/01\/ESP32-CAM-Picture-Filename-Date-Time-Overview-01.png?resize=750%2C412&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\n
it was taken (it\u2019s a unique filename);<\/li>\n\n\n\n\n
Parts Required<\/h2>\n\n\n\n
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![](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2017\/10\/header-200.png?w=1200&quality=100&strip=all&ssl=1\")
<\/a><\/p>\n\n\n\nCode<\/h2>\n\n\n\n
\/*********\r\n Rui Santos\r\n Complete instructions at https:\/\/RandomNerdTutorials.com\/esp32-cam-photo-microsd-card-timestamp\r\n \r\n Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files.\r\n The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.\r\n*********\/\r\n\r\n#include "esp_camera.h"\r\n#include "FS.h" \/\/ SD Card ESP32\r\n#include "SD_MMC.h" \/\/ SD Card ESP32\r\n#include "soc\/soc.h" \/\/ Disable brownout problems\r\n#include "soc\/rtc_cntl_reg.h" \/\/ Disable brownout problems\r\n#include "driver\/rtc_io.h"\r\n#include <WiFi.h>\r\n#include "time.h"\r\n\r\n\/\/ REPLACE WITH YOUR NETWORK CREDENTIALS\r\nconst char* ssid = "REPLACE_WITH_YOUR_SSID";\r\nconst char* password = "REPLACE_WITH_YOUR_PASSWORD";\r\n\r\n\/\/ REPLACE WITH YOUR TIMEZONE STRING: https:\/\/github.com\/nayarsystems\/posix_tz_db\/blob\/master\/zones.csv\r\nString myTimezone ="WET0WEST,M3.5.0\/1,M10.5.0";\r\n\r\n\/\/ Pin definition for CAMERA_MODEL_AI_THINKER\r\n\/\/ Change pin definition if you're using another ESP32 camera module\r\n#define PWDN_GPIO_NUM 32\r\n#define RESET_GPIO_NUM -1\r\n#define XCLK_GPIO_NUM 0\r\n#define SIOD_GPIO_NUM 26\r\n#define SIOC_GPIO_NUM 27\r\n#define Y9_GPIO_NUM 35\r\n#define Y8_GPIO_NUM 34\r\n#define Y7_GPIO_NUM 39\r\n#define Y6_GPIO_NUM 36\r\n#define Y5_GPIO_NUM 21\r\n#define Y4_GPIO_NUM 19\r\n#define Y3_GPIO_NUM 18\r\n#define Y2_GPIO_NUM 5\r\n#define VSYNC_GPIO_NUM 25\r\n#define HREF_GPIO_NUM 23\r\n#define PCLK_GPIO_NUM 22\r\n\r\n\/\/ Stores the camera configuration parameters\r\ncamera_config_t config;\r\n\r\n\/\/ Initializes the camera\r\nvoid configInitCamera(){\r\n config.ledc_channel = LEDC_CHANNEL_0;\r\n config.ledc_timer = LEDC_TIMER_0;\r\n config.pin_d0 = Y2_GPIO_NUM;\r\n config.pin_d1 = Y3_GPIO_NUM;\r\n config.pin_d2 = Y4_GPIO_NUM;\r\n config.pin_d3 = Y5_GPIO_NUM;\r\n config.pin_d4 = Y6_GPIO_NUM;\r\n config.pin_d5 = Y7_GPIO_NUM;\r\n config.pin_d6 = Y8_GPIO_NUM;\r\n config.pin_d7 = Y9_GPIO_NUM;\r\n config.pin_xclk = XCLK_GPIO_NUM;\r\n config.pin_pclk = PCLK_GPIO_NUM;\r\n config.pin_vsync = VSYNC_GPIO_NUM;\r\n config.pin_href = HREF_GPIO_NUM;\r\n config.pin_sccb_sda = SIOD_GPIO_NUM;\r\n config.pin_sccb_scl = SIOC_GPIO_NUM;\r\n config.pin_pwdn = PWDN_GPIO_NUM;\r\n config.pin_reset = RESET_GPIO_NUM;\r\n config.xclk_freq_hz = 20000000;\r\n config.pixel_format = PIXFORMAT_JPEG; \/\/YUV422,GRAYSCALE,RGB565,JPEG\r\n config.grab_mode = CAMERA_GRAB_LATEST;\r\n\r\n \/\/ Select lower framesize if the camera doesn't support PSRAM\r\n if(psramFound()){\r\n config.frame_size = FRAMESIZE_UXGA; \/\/ FRAMESIZE_ + QVGA|CIF|VGA|SVGA|XGA|SXGA|UXGA\r\n config.jpeg_quality = 10; \/\/0-63 lower number means higher quality\r\n config.fb_count = 1;\r\n } else {\r\n config.frame_size = FRAMESIZE_SVGA;\r\n config.jpeg_quality = 12;\r\n config.fb_count = 1;\r\n }\r\n \r\n \/\/ Initialize the Camera\r\n esp_err_t err = esp_camera_init(&config);\r\n if (err != ESP_OK) {\r\n Serial.printf("Camera init failed with error 0x%x", err);\r\n return;\r\n }\r\n}\r\n\r\n\/\/ Connect to wifi\r\nvoid initWiFi(){\r\n WiFi.begin(ssid, password);\r\n Serial.println("Connecting Wifi");\r\n while (WiFi.status() != WL_CONNECTED) {\r\n Serial.print(".");\r\n delay(500);\r\n }\r\n}\r\n\r\n\/\/ Function to set timezone\r\nvoid setTimezone(String timezone){\r\n Serial.printf(" Setting Timezone to %s\\n",timezone.c_str());\r\n setenv("TZ",timezone.c_str(),1); \/\/ Now adjust the TZ. Clock settings are adjusted to show the new local time\r\n tzset();\r\n}\r\n\r\n\/\/ Connect to NTP server and adjust timezone\r\nvoid initTime(String timezone){\r\n struct tm timeinfo;\r\n Serial.println("Setting up time");\r\n configTime(0, 0, "pool.ntp.org"); \/\/ First connect to NTP server, with 0 TZ offset\r\n if(!getLocalTime(&timeinfo)){\r\n Serial.println(" Failed to obtain time");\r\n return;\r\n }\r\n Serial.println("Got the time from NTP");\r\n \/\/ Now we can set the real timezone\r\n setTimezone(timezone);\r\n}\r\n\r\n\/\/ Get the picture filename based on the current ime\r\nString getPictureFilename(){\r\n struct tm timeinfo;\r\n if(!getLocalTime(&timeinfo)){\r\n Serial.println("Failed to obtain time");\r\n return "";\r\n }\r\n char timeString[20];\r\n strftime(timeString, sizeof(timeString), "%Y-%m-%d_%H-%M-%S", &timeinfo);\r\n Serial.println(timeString);\r\n String filename = "\/picture_" + String(timeString) +".jpg";\r\n return filename; \r\n}\r\n\r\n\/\/ Initialize the micro SD card\r\nvoid initMicroSDCard(){\r\n \/\/ Start Micro SD card\r\n Serial.println("Starting SD Card");\r\n if(!SD_MMC.begin()){\r\n Serial.println("SD Card Mount Failed");\r\n return;\r\n }\r\n uint8_t cardType = SD_MMC.cardType();\r\n if(cardType == CARD_NONE){\r\n Serial.println("No SD Card attached");\r\n return;\r\n }\r\n}\r\n\r\n\/\/ Take photo and save to microSD card\r\nvoid takeSavePhoto(){\r\n \/\/ Take Picture with Camera\r\n camera_fb_t * fb = esp_camera_fb_get();\r\n \r\n \/\/Uncomment the following lines if you're getting old pictures\r\n \/\/esp_camera_fb_return(fb); \/\/ dispose the buffered image\r\n \/\/fb = NULL; \/\/ reset to capture errors\r\n \/\/fb = esp_camera_fb_get();\r\n \r\n if(!fb) {\r\n Serial.println("Camera capture failed");\r\n delay(1000);\r\n ESP.restart();\r\n }\r\n\r\n \/\/ Path where new picture will be saved in SD Card\r\n String path = getPictureFilename();\r\n Serial.printf("Picture file name: %s\\n", path.c_str());\r\n \r\n \/\/ Save picture to microSD card\r\n fs::FS &fs = SD_MMC; \r\n File file = fs.open(path.c_str(),FILE_WRITE);\r\n if(!file){\r\n Serial.printf("Failed to open file in writing mode");\r\n } \r\n else {\r\n file.write(fb->buf, fb->len); \/\/ payload (image), payload length\r\n Serial.printf("Saved: %s\\n", path.c_str());\r\n }\r\n file.close();\r\n esp_camera_fb_return(fb); \r\n}\r\n\r\nvoid setup() {\r\n WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0); \/\/ disable brownout detector\r\n\r\n Serial.begin(115200);\r\n delay(2000);\r\n\r\n \/\/ Initialize Wi-Fi\r\n initWiFi();\r\n \/\/ Initialize time with timezone\r\n initTime(myTimezone); \r\n \/\/ Initialize the camera \r\n Serial.print("Initializing the camera module...");\r\n configInitCamera();\r\n Serial.println("Ok!");\r\n \/\/ Initialize MicroSD\r\n Serial.print("Initializing the MicroSD card module... ");\r\n initMicroSDCard();\r\n}\r\n\r\nvoid loop() { \r\n \/\/ Take and Save Photo\r\n takeSavePhoto();\r\n delay(10000);\r\n}\r\n<\/code><\/pre>\n\tHow the Code Works<\/h3>\n\n\n\n
Include Libraries<\/h4>\n\n\n\n
#include \"esp_camera.h\"\n#include \"FS.h\" \/\/ SD Card ESP32\n#include \"SD_MMC.h\" \/\/ SD Card ESP32\n#include \"soc\/soc.h\" \/\/ Disable brownout problems\n#include \"soc\/rtc_cntl_reg.h\" \/\/ Disable brownout problems\n#include \"driver\/rtc_io.h\"\n#include <WiFi.h>\n#include \"time.h\"<\/code><\/pre>\n\n\n\nNetwork Credentials<\/h4>\n\n\n\n
const char* ssid = \"REPLACE_WITH_YOUR_SSID\";\nconst char* password = \"REPLACE_WITH_YOUR_PASSWORD\";<\/code><\/pre>\n\n\n\nTimezone String<\/h4>\n\n\n\n
\/\/REPLACE WITH YOUR TIMEZONE STRING: https:\/\/github.com\/nayarsystems\/posix_tz_db\/blob\/master\/zones.csv\nString myTimezone =\"WET0WEST,M3.5.0\/1,M10.5.0\";<\/code><\/pre>\n\n\n\nCamera Pinout and Configurations<\/h4>\n\n\n\n
\/\/ Pin definition for CAMERA_MODEL_AI_THINKER\n\/\/ Change pin definition if you're using another ESP32 camera module\n#define PWDN_GPIO_NUM 32\n#define RESET_GPIO_NUM -1\n#define XCLK_GPIO_NUM 0\n#define SIOD_GPIO_NUM 26\n#define SIOC_GPIO_NUM 27\n#define Y9_GPIO_NUM 35\n#define Y8_GPIO_NUM 34\n#define Y7_GPIO_NUM 39\n#define Y6_GPIO_NUM 36\n#define Y5_GPIO_NUM 21\n#define Y4_GPIO_NUM 19\n#define Y3_GPIO_NUM 18\n#define Y2_GPIO_NUM 5\n#define VSYNC_GPIO_NUM 25\n#define HREF_GPIO_NUM 23\n#define PCLK_GPIO_NUM 22<\/code><\/pre>\n\n\n\n\/\/ Stores the camera configuration parameters\ncamera_config_t config;<\/code><\/pre>\n\n\n\nConfigure and Initialize the Camera<\/h4>\n\n\n\n
\/\/ Initializes the camera\nvoid configInitCamera(){\n config.ledc_channel = LEDC_CHANNEL_0;\n config.ledc_timer = LEDC_TIMER_0;\n config.pin_d0 = Y2_GPIO_NUM;\n config.pin_d1 = Y3_GPIO_NUM;\n config.pin_d2 = Y4_GPIO_NUM;\n config.pin_d3 = Y5_GPIO_NUM;\n config.pin_d4 = Y6_GPIO_NUM;\n config.pin_d5 = Y7_GPIO_NUM;\n config.pin_d6 = Y8_GPIO_NUM;\n config.pin_d7 = Y9_GPIO_NUM;\n config.pin_xclk = XCLK_GPIO_NUM;\n config.pin_pclk = PCLK_GPIO_NUM;\n config.pin_vsync = VSYNC_GPIO_NUM;\n config.pin_href = HREF_GPIO_NUM;\n config.pin_sscb_sda = SIOD_GPIO_NUM;\n config.pin_sscb_scl = SIOC_GPIO_NUM;\n config.pin_pwdn = PWDN_GPIO_NUM;\n config.pin_reset = RESET_GPIO_NUM;\n config.xclk_freq_hz = 20000000;\n config.pixel_format = PIXFORMAT_JPEG; \/\/YUV422,GRAYSCALE,RGB565,JPEG\n config.grab_mode = CAMERA_GRAB_LATEST;\n\n<\/code><\/pre>\n\n\n\nconfig.pixel_format = PIXFORMAT_JPEG; \/\/YUV422,GRAYSCALE,RGB565,JPEG<\/code><\/pre>\n\n\n\n\n
\/\/ Select lower framesize if the camera doesn't support PSRAM\n if(psramFound()){\n config.frame_size = FRAMESIZE_UXGA; \/\/ FRAMESIZE_ + QVGA|CIF|VGA|SVGA|XGA|SXGA|UXGA\n config.jpeg_quality = 10; \/\/0-63 lower number means higher quality\n config.fb_count = 1;\n } else {\n config.frame_size = FRAMESIZE_SVGA;\n config.jpeg_quality = 12;\n config.fb_count = 1;\n }<\/code><\/pre>\n\n\n\n\n
\/\/ Initialize the Camera\n esp_err_t err = esp_camera_init(&config);\n if (err != ESP_OK) {\n Serial.printf(\"Camera init failed with error 0x%x\", err);\n return;\n }<\/code><\/pre>\n\n\n\nInitialize WiFi<\/h4>\n\n\n\n
\/\/ Connect to wifi\nvoid initWiFi(){\n WiFi.begin(ssid, password);\n Serial.println(\"Connecting Wifi\");\n while (WiFi.status() != WL_CONNECTED) {\n Serial.print(\".\");\n delay(500);\n }\n}<\/code><\/pre>\n\n\n\nInitialize Time and Set the Timezone<\/h4>\n\n\n\n
\/\/ Function to set timezone\nvoid setTimezone(String timezone){\n Serial.printf(\" Setting Timezone to %s\\n\",timezone.c_str());\n setenv(\"TZ\",timezone.c_str(),1); \/\/ Now adjust the TZ. Clock settings are adjusted to show the new local time\n tzset();\n}<\/code><\/pre>\n\n\n\n\/\/ Connect to NTP server and adjust timezone\nvoid initTime(String timezone){\n struct tm timeinfo;\n Serial.println(\"Setting up time\");\n configTime(0, 0, \"pool.ntp.org\"); \/\/ First connect to NTP server, with 0 TZ offset\n if(!getLocalTime(&timeinfo)){\n Serial.println(\" Failed to obtain time\");\n return;\n }\n Serial.println(\"Got the time from NTP\");\n \/\/ Now we can set the real timezone\n setTimezone(timezone);\n}<\/code><\/pre>\n\n\n\nGet Current Time and Picture Filename<\/h4>\n\n\n\n
picture_YYYY-MM-DD_HH-MM-SS.jpg<\/code><\/pre>\n\n\n\nString getPictureFilename(){<\/code><\/pre>\n\n\n\nstruct tm timeinfo;\nif(!getLocalTime(&timeinfo)){\n Serial.println(\"Failed to obtain time\");\n return \"\";\n}<\/code><\/pre>\n\n\n\nstrftime(timeString, sizeof(timeString), \"%Y-%m-%d_%H-%M-%S\", &timeinfo);\nSerial.println(timeString);<\/code><\/pre>\n\n\n\nString filename = \"\/picture_\" + String(timeString) +\".jpg\";<\/code><\/pre>\n\n\n\nreturn filename;<\/code><\/pre>\n\n\n\nInitialize the microSD Card<\/h4>\n\n\n\n
\/\/ Start Micro SD card\nSerial.println(\"Starting SD Card\");\nif(!SD_MMC.begin()){\n Serial.println(\"SD Card Mount Failed\");\n return;\n}<\/code><\/pre>\n\n\n\nuint8_t cardType = SD_MMC.cardType();\nif(cardType == CARD_NONE){\n Serial.println(\"No SD Card attached\");\n return;\n}<\/code><\/pre>\n\n\n\nTake and Save a Picture<\/h4>\n\n\n\n
camera_fb_t * fb = esp_camera_fb_get();<\/code><\/pre>\n\n\n\n\/\/esp_camera_fb_return(fb); \/\/ dispose the buffered image\n\/\/fb = NULL; \/\/ reset to capture errors\n\/\/fb = esp_camera_fb_get();<\/code><\/pre>\n\n\n\nif(!fb) {\n Serial.println(\"Camera capture failed\");\n delay(1000);\n ESP.restart();\n}<\/code><\/pre>\n\n\n\n \/\/ Path where new picture will be saved in SD Card\n String path = getPictureFilename();\n Serial.printf(\"Picture file name: %s\\n\", path.c_str());<\/code><\/pre>\n\n\n\nfs::FS &fs = SD_MMC; \nFile file = fs.open(path.c_str(),FILE_WRITE);<\/code><\/pre>\n\n\n\nif(!file){\n Serial.printf(\"Failed to open file in writing mode\");\n} <\/code><\/pre>\n\n\n\n file.write(fb->buf, fb->len); \/\/ payload (image), payload length<\/code><\/pre>\n\n\n\nfile.close();<\/code><\/pre>\n\n\n\nesp_camera_fb_return(fb);<\/code><\/pre>\n\n\n\nsetup()<\/h4>\n\n\n\n
void setup() {\n WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0); \/\/ disable brownout detector\n\n Serial.begin(115200);\n delay(2000);\n\n \/\/ Initialize Wi-Fi\n initWiFi();\n \/\/ Initialize time with timezone\n initTime(myTimezone); \n \/\/ Initialize the camera \n Serial.print(\"Initializing the camera module...\");\n configInitCamera();\n Serial.println(\"Ok!\");\n \/\/ Initialize MicroSD\n Serial.print(\"Initializing the MicroSD card module... \");\n initMicroSDCard();\n}<\/code><\/pre>\n\n\n\nloop()<\/h4>\n\n\n\n
void loop() { \n \/\/ Take and Save Photo\n takeSavePhoto();\n delay(10000);\n}<\/code><\/pre>\n\n\n\nDemonstration<\/h2>\n\n\n\n
![\"Selecting](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2023\/01\/select-ESP32-CAM-Arduino-IDE.png?resize=750%2C437&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n![\"Arduino](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2021\/05\/arduino-2-0-upload-button.png?resize=30%2C30&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n![\"ESP32-CMA](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2023\/01\/ESP32-CAM-Take-Pictur3e-microSD-card-date-time-serial-monitor.png?resize=715%2C436&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n![\"ESP32-CAM](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2023\/01\/ESP32-CAM-Pictures-Saved-MicroSD-Card-Date-Time.jpg?resize=750%2C505&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\npicture_2023-01-17_17-31-40.jpg<\/pre>\n\n\n\n
\n
Wrapping Up<\/h2>\n\n\n\n
\n