![\"ESP32-CAM](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2021\/11\/ESP32-CAM-Firebase-Storage.jpg?resize=1200%2C675&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\nUpdated 19 September 2023.<\/em><\/p>\n\n\n\n Note: <\/strong>this project is compatible with any ESP32 Camera Board with the OV2640 camera<\/a>. You just need to make sure you use the right pinout for the board<\/a> you’re using.<\/p>\n\n\n\n Firebase is Google’s mobile application development platform that helps you build, improve, and grow your app. It has many services used to manage data from any Android, IOS, or web application like authentication<\/a>, realtime database<\/a>, hosting<\/a>, storage, etc.<\/p>\n\n\n\n This simple tutorial exemplifies how to take and send photos taken with the ESP32-CAM to Firebase Storage. The ESP32-CAM takes a picture and sends it to Firebase every time it resets (press the RST button). The idea is that you add some sort of trigger that might be useful for your projects, like a PIR motion sensor<\/a> or a pushbutton, for example.<\/p>\n\n\n Here’s a summary of the steps you need to follow to create this project.<\/p>\n\n\n\n Follow the next instructions to create a new project on Firebase.<\/p>\n\n\n\n You need to set authentication methods for your app. <\/p>\n\n\n\n “Most apps need to know the identity of a user. In other words, it takes care of logging in and identifying the users (in this case, the ESP32). Knowing a user’s identity allows an app to securely save user data in the cloud …” To learn more about the authentication methods, you can read the documentation<\/a>.<\/p>\n\n\n\n 1)<\/strong> On the left sidebar, click on Build <\/strong>> Storage <\/strong>and then on Get started<\/strong>.<\/p>\n\n\n To use Firebase Storage, you need to upgrade your project to a paid plan. But don\u2019t worry \u2014 they offer 5GB of free storage, which is more than enough to run this and many other projects for a long time without paying anything. Additionally, you can set a maximum spending limit.<\/p>\n\n\n\n 2)<\/strong> Create a billing account to link to your project.<\/p>\n\n\n Set the Pay as you go<\/em> Blaze Plan.<\/p>\n\n\n 3)<\/strong> After creating and setting up your billing account and linking it to your project, return to your project console to create a Storage Bucket<\/strong>.<\/p>\n\n\n 4)<\/strong> Select the database location.<\/p>\n\n\n 5)<\/strong> Select Start in test mode<\/strong><\/em>\u2014click Next<\/strong>. We’ll change the storage rules later on.<\/p>\n\n\n 6)<\/strong> The storage bucket is now set up. Copy the storage bucket ID\u2014 you’ll need it later. Don’t<\/u> copy the gs:\/\/<\/span> section.<\/p>\n\n\n We’ll change the storage rules so that only authenticated users can upload files to the storage bucket. Select the Rules<\/strong> tab.<\/p>\n\n\n Change your database rules. Use the following rules:<\/p>\n\n\n\n When you’re done, click Publish<\/strong>.<\/p>\n\n\n\n To interface with your Firebase project using the ESP32-CAM, you need to get your project API key. Follow the next steps to get your project API key.<\/p>\n\n\n\n Now, you have everything ready to interface the ESP32 with the database.<\/p>\n\n\n\n Before proceeding with the tutorial, make sure you check the following prerequisites.<\/p>\n\n\n\n We’ll program the ESP32-CAM board using Arduino IDE. So you need the Arduino IDE installed as well as the ESP32 core. Follow the next tutorial to install it, if you haven’t already.<\/p>\n\n\n\n For this tutorial, you need to install the FirebaseClient Library<\/a>.<\/p>\n\n\n\n Follow this section if you’re using Arduino IDE. <\/p>\n\n\n\n Go to Sketch <\/strong>> Include Library<\/strong> > Manage Libraries<\/strong>, search for the library name, and install it.<\/p>\n\n\n Now, you’re all set to start programming the ESP32 and ESP8266 boards to interact with the database.<\/p>\n\n\n\n Follow the next instructions if you’re using VS Code with the PlatformIO or pioarduino extension.<\/p>\n\n\n\n Click on the PIO Home<\/strong> icon and select the Libraries tab<\/strong>. Search for “FirebaseClient<\/strong>“. Select the FirebaseClient Library<\/strong> by Mobitz.<\/p>\n\n\n Then, click Add to Project<\/strong> and select the project you’re working on.<\/p>\n\n\n Then, click Add to Project<\/strong> and select the project you’re working on.<\/p>\n\n\n\n Also, change the monitor speed to 115200 by adding the following line to the platformio.ini<\/span> file of your project:<\/p>\n\n\n\n Now, you’re all set to start programming the ESP32-CAM board to send pictures to Firebase Storage.<\/p>\n\n\n\n Copy the following code to the Arduino IDE, or to the main.cpp<\/span> file if you’re using VS Code. It takes a picture and sends it to Firebase when it first boots.<\/p>\n\n\n View raw code<\/a><\/p>\n\n\n\n You need to insert your network credentials, Firebase user and password, storage bucket URL, and project API key for the project to work.<\/p>\n\n\n\n This sketch was based on a basic example\u00a0provided by the library<\/a>. You can find more examples\u00a0here<\/a>.<\/p>\n\n\n\n Continue reading to learn how the code works or skip to the demonstration section<\/a>.<\/p>\n\n\n\n First, include the required libraries.<\/p>\n\n\n\n Insert your network credentials in the following variables so that the ESP can connect to the internet and communicate with Firebase.<\/p>\n\n\n\n Insert your Firebase project API key\u2014see this section: 4) Get Project API Key<\/a>.<\/p>\n\n\n\n Insert the authorized email and the corresponding password\u2014see this section: 2) Set Authentication Methods<\/a>.<\/p>\n\n\n\n Insert the Firebase storage bucket ID, e.g bucket-name.appspot.com<\/em>. In my case, it is esp-project-598f5.firebasestorage.app<\/span>. (remove any slashes “\/” at the end or at the beginning of the bucket ID, otherwise, it will not work).<\/p>\n\n\n\n The FILE_PHOTO_PATH<\/span> variable defines the LittleFS path where the picture will be saved. It will be saved with the name photo.jpg<\/span>.<\/p>\n\n\n\n We also have a variable to hold the path where the picture will be saved on the Storage Bucket on Firebase.<\/p>\n\n\n\n The following lines define the ESP32-CAM pins. This is the definition for the ESP32-CAM AI-Thinker module. If you’re using another ESP32-CAM module, you need to modify the pin definition\u2014check this tutorial: ESP32-CAM Camera Boards: Pin and GPIOs Assignment Guide<\/a>.<\/p>\n\n\n\n The takeNewPhoto<\/span> variable checks if it is time to take a new photo. We’ll set it to true<\/span>, so that it takes a picture when the board first runs.<\/p>\n\n\n\n Then, we define Firebase configuration data objects.<\/p>\n\n\n\n The taskCompleted<\/span> is a boolean variable that checks if we successfully connected to Firebase.<\/p>\n\n\n\n The capturePhotoSaveLittleFS()<\/span> function takes a photo and saves it in the ESP32 filesystem.<\/p>\n\n\n\n The initWiFi()<\/span> function initializes Wi-Fi.<\/p>\n\n\n\n The initLittleFS()<\/span> function initializes the LittleFS filesystem.<\/p>\n\n\n\n The initCamera()<\/span> function initializes the ESP32-CAM.<\/p>\n\n\n\n In the setup()<\/span>, initialize the Serial Monitor, Wi-Fi, LittleFS, and the camera.<\/p>\n\n\n\n Then, assign the following settings to the Firebase configuration objects.<\/p>\n\n\n\n Finally, initialize Firebase.<\/p>\n\n\n\n In the loop()<\/span>, take a new picture and save it to the filesystem.<\/p>\n\n\n\n Finally, send the picture to Firebase.<\/p>\n\n\n\n The command that actually sends the picture is Firebase.Storage.upload()<\/span>:<\/p>\n\n\n\n This function returns a boolean variable indicating the success of the operation.<\/p>\n\n\n\n It accepts as the second argument, the storage bucket ID<\/span>. Then, the path where the file is saved<\/span>; the storage type<\/span> (it can be LittleFS or SD Card); the path where the file will be saved in the Firebase storage<\/span>; the mime type<\/span>, and a callback function (fcsUploadCallback<\/span>) (this callback function simply inform us of the uploading process state).<\/p>\n\n\n\n After inserting the required credentials, upload the code to your ESP32-CAM. If you don’t know how to upload code to the ESP32-CAM, you can follow the next tutorial(s):<\/p>\n\n\n\n After uploading the code, open the Serial Monitor at a baud rate of 115200. Press the ESP32-CAM on-board RST button.<\/p>\n\n\n\n It will log in to Firebase, take a picture, and save it to LittleFS. Afterwards, it will upload the picture to Firebase Storage.<\/p>\n\n\nWhat is Firebase?<\/h2>\n\n\n
![\"Firebase](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2021\/09\/Firebase-Logo.png?resize=750%2C196&quality=100&strip=all&ssl=1\"){kind=logo}
<\/figure><\/div>\n\n\nProject Overview<\/h2>\n\n\n\n
![\"\"](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2022\/01\/ESP32-CAM-Firebase-Storage-Project-Overview-update.png?resize=755%2C228&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\n
Contents<\/h2>\n\n\n\n
\n
1) Create a Firebase Project<\/h2>\n\n\n\n
\n
![\"Set](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2025\/04\/1-create-firebase-project.png?w=1200&quality=100&strip=all&ssl=1\")
<\/figure><\/li>\n\n\n\n![\"Set](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2025\/04\/2-create-firebase-project-ai-assistance.png?w=1200&quality=100&strip=all&ssl=1\")
<\/figure><\/li>\n\n\n\n![\"Disable](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2025\/04\/3-create-firebase-project.png?w=1200&quality=100&strip=all&ssl=1\")
<\/figure><\/li>\n\n\n\n![\"Firebase](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2025\/04\/5-Firebase-project-ready.png?w=1200&quality=100&strip=all&ssl=1\")
<\/figure>
<\/li>\n\n\n\n![\"Firebase](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2025\/04\/6-Firebase-console-ESP-project.png?w=1200&quality=100&strip=all&ssl=1\")
<\/figure><\/li>\n<\/ol>\n\n\n\n2) Set Authentication Methods<\/h2>\n\n\n\n
\n
![\"Firebase](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2025\/04\/7-set-authentication.png?w=1200&quality=100&strip=all&ssl=1\")
<\/figure><\/li>\n\n\n\n![\"SFirebase](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2025\/04\/8-Firebase-authentication-methods.png?w=1200&quality=100&strip=all&ssl=1\")
<\/figure><\/li>\n\n\n\n![\"Enable](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2025\/04\/9-enable-email-password-firebase.png?w=1200&quality=100&strip=all&ssl=1\")
<\/figure><\/li>\n\n\n\n![\"Firebase](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2025\/04\/10-add-user-email-password-firebase.png?w=1200&quality=100&strip=all&ssl=1\")
<\/figure><\/li>\n\n\n\n![\"Firebase](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2025\/04\/11-add-user-email-pass.png?w=1200&quality=100&strip=all&ssl=1\")
<\/figure><\/li>\n\n\n\n![\"Firebase](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2025\/04\/12-user-created-firebase.png?w=1200&quality=100&strip=all&ssl=1\")
<\/figure><\/li>\n<\/ol>\n\n\n\n3) Creating a Storage Bucket<\/h2>\n\n\n\n
![\"Firebase](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2023\/09\/Firebase-Project-Build-Storage.png?resize=746%2C597&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n![\"Firebase](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2023\/09\/Firebase-Storage-Create-Billing-Acoount.png?resize=750%2C528&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n![\"Firebase](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2023\/09\/Firabase-Storage-Pay-as-you-go-blaze-plan.jpg?resize=740%2C755&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n![\"Firebase](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2023\/09\/Firebase-Storage-Get-Started.png?resize=810%2C376&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n![\"Firebase](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2023\/09\/Firabase-Set-Up-Default-Bucket.png?resize=727%2C551&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n![\"Firabase](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2023\/09\/5-set-up-default-bucket.png?resize=744%2C590&quality=100&strip=all&ssl=1\")
<\/a><\/figure><\/div>\n\n\n![\"Firebase](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2023\/09\/Firebase-Bucket-Storage-Created-Bucket-ID.png?resize=738%2C444&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\nStorage Rules<\/h3>\n\n\n\n
![\"Firebase](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2023\/09\/Firebase-Storage-Bucket-Change-Rules.png?resize=750%2C502&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\nrules_version = '2';\nservice firebase.storage {\n match \/b\/{bucket}\/o {\n match \/{allPaths=**} {\n allow read, write: if request.auth !=null;\n }\n }\n}<\/code><\/pre>\n\n\n\n4) Get Project API Key<\/h2>\n\n\n\n
\n
![\"Firebase](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2025\/04\/17-project-settings-firebase.png?w=1200&quality=100&strip=all&ssl=1\")
<\/figure><\/li>\n\n\n\n![\"Firebase](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2025\/04\/18-project-api-key-firebase.png?w=1200&quality=100&strip=all&ssl=1\")
<\/figure><\/li>\n<\/ol>\n\n\n\n
\n\n\n\n5) ESP32-CAM – Send Pictures to Firebase Storage<\/h2>\n\n\n\n
Installing the ESP32 Boards in Arduino IDE<\/h3>\n\n\n\n
\n
Installing ESP Firebase Client Library<\/h3>\n\n\n\n
Installation – Arduino IDE<\/h4>\n\n\n\n
![\"Install](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2021\/09\/install-Firebase-client-arduino-ide.png?resize=790%2C586&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\nInstalling Libraries – VS Code<\/h4>\n\n\n\n
Install the FirebaseClient Library<\/strong><\/h5>\n\n\n\n
![\"Install](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2021\/09\/Install-FirebsaeClient-Library-VS-Code.jpg?resize=750%2C646&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n![\"Add](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2021\/09\/Add-FirebaseClient-library-to-project-VS-Code.jpg?resize=750%2C341&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\nmonitor_speed = 115200<\/code><\/pre>\n\n\n\nESP32-CAM Send Pictures to Firebase – Code<\/h3>\n\n\n\n
\/*********\r\n Rui Santos\r\n Complete instructions at: https:\/\/RandomNerdTutorials.com\/esp32-cam-save-picture-firebase-storage\/\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 Based on the example provided by the ESP Firebase Client Library\r\n*********\/\r\n\r\n#include "Arduino.h"\r\n#include "WiFi.h"\r\n#include "esp_camera.h"\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 <LittleFS.h>\r\n#include <FS.h>\r\n#include <Firebase_ESP_Client.h>\r\n\/\/Provide the token generation process info.\r\n#include <addons\/TokenHelper.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\/\/ Insert Firebase project API Key\r\n#define API_KEY "REPLACE_WITH_YOUR_FIREBASE_PROJECT_API_KEY"\r\n\r\n\/\/ Insert Authorized Email and Corresponding Password\r\n#define USER_EMAIL "REPLACE_WITH_THE_AUTHORIZED_USER_EMAIL"\r\n#define USER_PASSWORD "REPLACE_WITH_THE_AUTHORIZED_USER_PASSWORD"\r\n\r\n\/\/ Insert Firebase storage bucket ID e.g bucket-name.appspot.com\r\n#define STORAGE_BUCKET_ID "REPLACE_WITH_YOUR_STORAGE_BUCKET_ID"\r\n\/\/ For example:\r\n\/\/#define STORAGE_BUCKET_ID "esp-iot-app.appspot.com"\r\n\r\n\/\/ Photo File Name to save in LittleFS\r\n#define FILE_PHOTO_PATH "\/photo.jpg"\r\n#define BUCKET_PHOTO "\/data\/photo.jpg"\r\n\r\n\/\/ OV2640 camera module pins (CAMERA_MODEL_AI_THINKER)\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\nboolean takeNewPhoto = true;\r\n\r\n\/\/Define Firebase Data objects\r\nFirebaseData fbdo;\r\nFirebaseAuth auth;\r\nFirebaseConfig configF;\r\n\r\nvoid fcsUploadCallback(FCS_UploadStatusInfo info);\r\n\r\nbool taskCompleted = false;\r\n\r\n\/\/ Capture Photo and Save it to LittleFS\r\nvoid capturePhotoSaveLittleFS( void ) {\r\n \/\/ Dispose first pictures because of bad quality\r\n camera_fb_t* fb = NULL;\r\n \/\/ Skip first 3 frames (increase\/decrease number as needed).\r\n for (int i = 0; i < 4; i++) {\r\n fb = esp_camera_fb_get();\r\n esp_camera_fb_return(fb);\r\n fb = NULL;\r\n }\r\n \r\n \/\/ Take a new photo\r\n fb = NULL; \r\n fb = esp_camera_fb_get(); \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 \/\/ Photo file name\r\n Serial.printf("Picture file name: %s\\n", FILE_PHOTO_PATH);\r\n File file = LittleFS.open(FILE_PHOTO_PATH, FILE_WRITE);\r\n\r\n \/\/ Insert the data in the photo file\r\n if (!file) {\r\n Serial.println("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.print("The picture has been saved in ");\r\n Serial.print(FILE_PHOTO_PATH);\r\n Serial.print(" - Size: ");\r\n Serial.print(fb->len);\r\n Serial.println(" bytes");\r\n }\r\n \/\/ Close the file\r\n file.close();\r\n esp_camera_fb_return(fb);\r\n}\r\n\r\nvoid initWiFi(){\r\n WiFi.begin(ssid, password);\r\n while (WiFi.status() != WL_CONNECTED) {\r\n delay(1000);\r\n Serial.println("Connecting to WiFi...");\r\n }\r\n}\r\n\r\nvoid initLittleFS(){\r\n if (!LittleFS.begin(true)) {\r\n Serial.println("An Error has occurred while mounting LittleFS");\r\n ESP.restart();\r\n }\r\n else {\r\n delay(500);\r\n Serial.println("LittleFS mounted successfully");\r\n }\r\n}\r\n\r\nvoid initCamera(){\r\n \/\/ OV2640 camera module\r\n camera_config_t config;\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;\r\n config.grab_mode = CAMERA_GRAB_LATEST;\r\n\r\n if (psramFound()) {\r\n config.frame_size = FRAMESIZE_UXGA;\r\n config.jpeg_quality = 10;\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 \/\/ Camera init\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 ESP.restart();\r\n } \r\n}\r\n\r\nvoid setup() {\r\n \/\/ Serial port for debugging purposes\r\n Serial.begin(115200);\r\n initWiFi();\r\n initLittleFS();\r\n \/\/ Turn-off the 'brownout detector'\r\n WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0);\r\n initCamera();\r\n\r\n \/\/Firebase\r\n \/\/ Assign the api key\r\n configF.api_key = API_KEY;\r\n \/\/Assign the user sign in credentials\r\n auth.user.email = USER_EMAIL;\r\n auth.user.password = USER_PASSWORD;\r\n \/\/Assign the callback function for the long running token generation task\r\n configF.token_status_callback = tokenStatusCallback; \/\/see addons\/TokenHelper.h\r\n\r\n Firebase.begin(&configF, &auth);\r\n Firebase.reconnectWiFi(true);\r\n}\r\n\r\nvoid loop() {\r\n if (takeNewPhoto) {\r\n capturePhotoSaveLittleFS();\r\n takeNewPhoto = false;\r\n }\r\n delay(1);\r\n if (Firebase.ready() && !taskCompleted){\r\n taskCompleted = true;\r\n Serial.print("Uploading picture... ");\r\n\r\n \/\/MIME type should be valid to avoid the download problem.\r\n \/\/The file systems for flash and SD\/SDMMC can be changed in FirebaseFS.h.\r\n if (Firebase.Storage.upload(&fbdo, STORAGE_BUCKET_ID \/* Firebase Storage bucket id *\/, FILE_PHOTO_PATH \/* path to local file *\/, mem_storage_type_flash \/* memory storage type, mem_storage_type_flash and mem_storage_type_sd *\/, BUCKET_PHOTO \/* path of remote file stored in the bucket *\/, "image\/jpeg" \/* mime type *\/,fcsUploadCallback)){\r\n Serial.printf("\\nDownload URL: %s\\n", fbdo.downloadURL().c_str());\r\n }\r\n else{\r\n Serial.println(fbdo.errorReason());\r\n }\r\n }\r\n}\r\n\r\n\/\/ The Firebase Storage upload callback function\r\nvoid fcsUploadCallback(FCS_UploadStatusInfo info){\r\n if (info.status == firebase_fcs_upload_status_init){\r\n Serial.printf("Uploading file %s (%d) to %s\\n", info.localFileName.c_str(), info.fileSize, info.remoteFileName.c_str());\r\n }\r\n else if (info.status == firebase_fcs_upload_status_upload)\r\n {\r\n Serial.printf("Uploaded %d%s, Elapsed time %d ms\\n", (int)info.progress, "%", info.elapsedTime);\r\n }\r\n else if (info.status == firebase_fcs_upload_status_complete)\r\n {\r\n Serial.println("Upload completed\\n");\r\n FileMetaInfo meta = fbdo.metaData();\r\n Serial.printf("Name: %s\\n", meta.name.c_str());\r\n Serial.printf("Bucket: %s\\n", meta.bucket.c_str());\r\n Serial.printf("contentType: %s\\n", meta.contentType.c_str());\r\n Serial.printf("Size: %d\\n", meta.size);\r\n Serial.printf("Generation: %lu\\n", meta.generation);\r\n Serial.printf("Metageneration: %lu\\n", meta.metageneration);\r\n Serial.printf("ETag: %s\\n", meta.etag.c_str());\r\n Serial.printf("CRC32: %s\\n", meta.crc32.c_str());\r\n Serial.printf("Tokens: %s\\n", meta.downloadTokens.c_str());\r\n Serial.printf("Download URL: %s\\n\\n", fbdo.downloadURL().c_str());\r\n }\r\n else if (info.status == firebase_fcs_upload_status_error){\r\n Serial.printf("Upload failed, %s\\n", info.errorMsg.c_str());\r\n }\r\n}\r\n<\/code><\/pre>\n\tHow the Code Works<\/h3>\n\n\n\n
Libraries<\/h4>\n\n\n\n
#include <Arduino.h>\n#include <FirebaseClient.h>\n#include <FS.h>\n#include <LittleFS.h>\n#include <WiFiClientSecure.h>\n#include \"esp_camera.h\"<\/code><\/pre>\n\n\n\nNetwork Credentials<\/h4>\n\n\n\n
\/\/Replace with your network credentials\n#define WIFI_SSID \"REPLACE_WITH_YOUR_SSID\"\n#define WIFI_PASSWORD \"REPLACE_WITH_YOUR_PASSWORD\"<\/code><\/pre>\n\n\n\nFirebase Project API Key<\/h4>\n\n\n\n
#define API_KEY \"REPLACE_WITH_YOUR_FIREBASE_PROJECT_API_KEY\"<\/code><\/pre>\n\n\n\nUser Email and Password<\/h4>\n\n\n\n
#define USER_EMAIL \"REPLACE_WITH_FIREBASE_PROJECT_EMAIL_USER\"\n#define USER_PASS \"REPLACE_WITH_FIREBASE_PROJECT_USER_PASS\"<\/code><\/pre>\n\n\n\nFirebase Storage Bucket ID<\/h4>\n\n\n\n
#define STORAGE_BUCKET_ID \"REPLACE_WITH_YOUR_STORAGE_BUCKET_ID\"<\/code><\/pre>\n\n\n\nPicture Path<\/h4>\n\n\n\n
#define FILE_PHOTO \"\/photo.jpg\"<\/code><\/pre>\n\n\n\n#define BUCKET_PHOTO \"\/data\/photo.jpg\"<\/code><\/pre>\n\n\n\nESP32-CAM Pin Definition<\/h4>\n\n\n\n
\/\/ OV2640 camera module pins (CAMERA_MODEL_AI_THINKER)\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\nOther Variables<\/h4>\n\n\n\n
boolean takeNewPhoto = true;<\/code><\/pre>\n\n\n\n\/\/Define Firebase Data objects\nFirebaseData fbdo;\nFirebaseAuth auth;\nFirebaseConfig configF;<\/code><\/pre>\n\n\n\nbool taskCompleted = false;<\/code><\/pre>\n\n\n\ncapturePhotoSaveLittleFS() Function<\/h4>\n\n\n\n
\/\/ Capture Photo and Save it to LittleFS\nvoid capturePhotoSaveLittleFS( void ) {\n \/\/ Dispose first pictures because of bad quality\n camera_fb_t* fb = NULL;\n \/\/ Skip first 3 frames (increase\/decrease number as needed).\n for (int i = 0; i < 4; i++) {\n fb = esp_camera_fb_get();\n esp_camera_fb_return(fb);\n fb = NULL;\n }\n \n \/\/ Take a new photo\n fb = NULL; \n fb = esp_camera_fb_get(); \n if(!fb) {\n Serial.println(\"Camera capture failed\");\n delay(1000);\n ESP.restart();\n } \n\n \/\/ Photo file name\n Serial.printf(\"Picture file name: %s\\n\", FILE_PHOTO_PATH);\n File file = LittleFS.open(FILE_PHOTO_PATH, FILE_WRITE);\n\n \/\/ Insert the data in the photo file\n if (!file) {\n Serial.println(\"Failed to open file in writing mode\");\n }\n else {\n file.write(fb->buf, fb->len); \/\/ payload (image), payload length\n Serial.print(\"The picture has been saved in \");\n Serial.print(FILE_PHOTO_PATH);\n Serial.print(\" - Size: \");\n Serial.print(fb->len);\n Serial.println(\" bytes\");\n }\n \/\/ Close the file\n file.close();\n esp_camera_fb_return(fb);\n}<\/code><\/pre>\n\n\n\ninitWiFi() Function<\/h4>\n\n\n\n
void initWiFi(){\n WiFi.begin(ssid, password);\n while (WiFi.status() != WL_CONNECTED) {\n delay(1000);\n Serial.println(\"Connecting to WiFi...\");\n }\n}<\/code><\/pre>\n\n\n\ninitLittleFS() Function<\/h4>\n\n\n\n
void initLittleFS(){\n if (!LittleFS.begin(true)) {\n Serial.println(\"An Error has occurred while mounting LittleFS\");\n ESP.restart();\n }\n else {\n delay(500);\n Serial.println(\"LittleFS mounted successfully\");\n }\n}<\/code><\/pre>\n\n\n\ninitCamera() Function<\/h4>\n\n\n\n
void initCamera(){\n \/\/ OV2640 camera module\n camera_config_t config;\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;\n\n if (psramFound()) {\n config.frame_size = FRAMESIZE_UXGA;\n config.jpeg_quality = 10;\n config.fb_count = 2;\n } else {\n config.frame_size = FRAMESIZE_SVGA;\n config.jpeg_quality = 12;\n config.fb_count = 1;\n }\n \/\/ Camera init\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 ESP.restart();\n } \n}<\/code><\/pre>\n\n\n\nsetup()<\/h4>\n\n\n\n
\/\/ Serial port for debugging purposes\nSerial.begin(115200);\ninitWiFi();\ninitLittleFS();\n\/\/ Turn-off the 'brownout detector'\nWRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0);\ninitCamera();<\/code><\/pre>\n\n\n\n\/\/ Assign the api key\nconfigF.api_key = API_KEY;\n\/\/Assign the user sign in credentials\nauth.user.email = USER_EMAIL;\nauth.user.password = USER_PASSWORD;\n\/\/Assign the callback function for the long running token generation task\nconfigF.token_status_callback = tokenStatusCallback; \/\/see addons\/TokenHelper.h<\/code><\/pre>\n\n\n\nFirebase.begin(&configF, &auth);\nFirebase.reconnectWiFi(true);<\/code><\/pre>\n\n\n\nloop()<\/h4>\n\n\n\n
if (takeNewPhoto) {\n capturePhotoSaveLittleFS();\n takeNewPhoto = false;\n}<\/code><\/pre>\n\n\n\nif (Firebase.ready() && !taskCompleted){\n taskCompleted = true;\n Serial.print(\"Uploading picture... \");\n\n \/\/MIME type should be valid to avoid the download problem.\n \/\/The file systems for flash and SD\/SDMMC can be changed in FirebaseFS.h.\n if (Firebase.Storage.upload(&fbdo, STORAGE_BUCKET_ID \/* Firebase Storage bucket id *\/, FILE_PHOTO_PATH \/* path to local file *\/, mem_storage_type_flash \/* memory storage type, mem_storage_type_flash and mem_storage_type_sd *\/, BUCKET_PHOTO \/* path of remote file stored in the bucket *\/, \"image\/jpeg\" \/* mime type *\/,fcsUploadCallback)){\n Serial.printf(\"\\nDownload URL: %s\\n\", fbdo.downloadURL().c_str());\n }\n else{\n Serial.println(fbdo.errorReason());\n }\n }<\/code><\/pre>\n\n\n\nFirebase.Storage.upload(&fbdo, STORAGE_BUCKET_ID, FILE_PHOTO, mem_storage_type_flash, FILE_PHOTO, \"image\/jpeg\", fcsUploadCallback)<\/code><\/pre>\n\n\n\n\/\/ The Firebase Storage upload callback function\nvoid fcsUploadCallback(FCS_UploadStatusInfo info){\n if (info.status == firebase_fcs_upload_status_init){\n Serial.printf(\"Uploading file %s (%d) to %s\\n\", info.localFileName.c_str(), info.fileSize, info.remoteFileName.c_str());\n }\n else if (info.status == firebase_fcs_upload_status_upload)\n {\n Serial.printf(\"Uploaded %d%s, Elapsed time %d ms\\n\", (int)info.progress, \"%\", info.elapsedTime);\n }\n else if (info.status == firebase_fcs_upload_status_complete)\n {\n Serial.println(\"Upload completed\\n\");\n FileMetaInfo meta = fbdo.metaData();\n Serial.printf(\"Name: %s\\n\", meta.name.c_str());\n Serial.printf(\"Bucket: %s\\n\", meta.bucket.c_str());\n Serial.printf(\"contentType: %s\\n\", meta.contentType.c_str());\n Serial.printf(\"Size: %d\\n\", meta.size);\n Serial.printf(\"Generation: %lu\\n\", meta.generation);\n Serial.printf(\"Metageneration: %lu\\n\", meta.metageneration);\n Serial.printf(\"ETag: %s\\n\", meta.etag.c_str());\n Serial.printf(\"CRC32: %s\\n\", meta.crc32.c_str());\n Serial.printf(\"Tokens: %s\\n\", meta.downloadTokens.c_str());\n Serial.printf(\"Download URL: %s\\n\\n\", fbdo.downloadURL().c_str());\n }\n else if (info.status == firebase_fcs_upload_status_error){\n Serial.printf(\"Upload failed, %s\\n\", info.errorMsg.c_str());\n }\n}<\/code><\/pre>\n\n\n\nDemonstration<\/h1>\n\n\n\n
\n