![\"Install](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2018\/10\/Install-ESP32-Filesystem-Uploader-Arduino-IDE.jpg?resize=1024%2C576&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\nUsing Arduino IDE 2.0? Follow this tutorial instead: Arduino IDE 2: Install ESP32 LittleFS Uploader (Upload Files to the Filesystem)<\/a><\/p>\n\n\n\n Note: <\/strong> if you have an ESP8266 board, read: Install ESP8266 NodeMCU LittleFS Filesystem Uploader in Arduino IDE<\/a>.<\/p>\n\n\n\n If you’re using VS Code with the PlatformIO extension, read the following tutorial instead:<\/p>\n\n\n\n Table of Contents<\/strong><\/p>\n\n\n\n SPIFFS lets you access the flash memory like you would do in a normal filesystem in your computer, but simpler and more limited. You can read, write, close, and delete files. At the time of writing this post, SPIFFS doesn\u2019t support directories, so everything is saved on a flat structure.<\/p>\n\n\n\n Using SPIFFS with the ESP32 board<\/a> is especially useful to:<\/p>\n\n\n\n With SPIFFS, you can write the HTML and CSS in separate files and save them on the ESP32 filesystem. Check the following tutorial to learn how to build a web server with files stored on the ESP32 file system:<\/p>\n\n\n\n You can create, save and write files to the ESP32 filesystem by writing the code yourself on the Arduino IDE. This is not very useful, because you’d have to type the content of your files in the Arduino sketch.<\/p>\n\n\n\n Fortunately, there is a plugin for the Arduino IDE that allows you to upload files directly to the ESP32 filesystem from a folder on your computer. This makes it really easy and simple to work with files. Let\u2019s install it.<\/p>\n\n\n\n Note: <\/strong> at the time of writing this post, the ESP32 Filesystem Uploader plugin is not supported on Arduino 2.0.<\/p>\n\n\n\n First, make sure you have the ESP32 add-on for the Arduino IDE. If you don’t, follow the next tutorial:<\/p>\n\n\n\n Follow the next steps to install the filesystem uploader if you’re using Windows:<\/p>\n\n\n\n 1)<\/strong> Go to the releases page and click the ESP32FS-1.0.zip<\/a> file to download.<\/p>\n\n\n 2)<\/strong> Find your Sketchbook location. In your Arduino IDE, go to File<\/strong> > Preferences<\/strong> and check your Sketchbook location. In my case, it’s in the following path: C:\\Users\\sarin\\Documents\\Arduino<\/span>.<\/p>\n\n\n 3)<\/strong> Go to the sketchbook location, and create a tools <\/strong>folder.<\/p>\n\n\n 4)<\/strong> Unzip the downloaded .zip<\/em> folder. Open it and copy the ESP32FS <\/strong><\/em>folder to the tools<\/strong> folder you created in the previous step. You should have a similar folder structure:<\/p>\n\n\n\n 5)<\/strong> Finally, restart your Arduino IDE.<\/p>\n\n\n\n To check if the plugin was successfully installed, open your Arduino IDE. Select your ESP32 board, go to Tools <\/strong>and check that you have the option “ESP32 Sketch Data Upload<\/strong>“.<\/p>\n\n\n Follow the next instructions if you’re using MacOS X.<\/p>\n\n\n\n 1)<\/strong> Go to the releases page and click the ESP32FS-1.0.zip<\/a> file to download.<\/p>\n\n\n 2)<\/strong> Unpack the files. <\/p>\n\n\n\n 3)<\/strong> Create a folder called tools<\/strong> in \/Documents\/Arduino\/<\/span>.<\/p>\n\n\n\n 4)<\/strong> Copy the unpacked ESP32FS <\/em><\/strong>folder to the tools<\/strong> directory. You should have a similar folder structure.<\/p>\n\n\n\n 5)<\/strong> Finally, restart your Arduino IDE.<\/p>\n\n\n\n To check if the plugin was successfully installed, open your Arduino IDE. Select your ESP32 board, go to Tools <\/strong>and check that you have the option “ESP32 Sketch Data Upload<\/strong>“.<\/p>\n\n\n <\/a><\/p>\n\n\n\n To upload files to the ESP32 filesystem follow the next instructions.<\/p>\n\n\n\n 1)<\/strong> Create an Arduino sketch and save it. For demonstration purposes, you can save an empty sketch.<\/p>\n\n\n\n 2)<\/strong> Then, open the sketch folder. You can go to Sketch <\/strong>> Show Sketch Folder<\/strong>. The folder where your sketch is saved should open.<\/p>\n\n\n 3)<\/strong> Inside that folder, create a new folder called data<\/strong><\/em>.<\/p>\n\n\n 4)<\/strong> Inside the data<\/em> <\/strong>folder is where you should put the files you want to save into the ESP32 filesystem. As an example, create a .txt<\/em> file with some text called test_example<\/em>.<\/p>\n\n\n 5)<\/strong> Then, to upload the files, in the Arduino IDE, you just need to go to Tools <\/strong>> ESP32 Sketch Data Upload<\/strong>.<\/p>\n\n\n The uploader will overwrite anything you had already saved in the filesystem.<\/p>\n\n\n\n Note<\/strong>: in some ESP32 development boards you need to press the on-board BOOT <\/strong>button when you see the “Connecting …….____……” message.<\/p>\n\n\n The files were successfully uploaded to the ESP32 filesystem when you see the message “SPIFFS Image Uploaded<\/strong>“.<\/p>\n\n\n Now, let\u2019s just check if the file was actually saved into the ESP32 filesystem. Simply upload the following code to your ESP32 board.<\/p>\n\n\n View raw code<\/a><\/p>\n\n\n\n After uploading, open the Serial Monitor at a baud rate of 115200. Press the ESP32 “ENABLE<\/strong>\/RST<\/strong>” button. It should print the content of your .txt<\/em> file on the Serial Monitor.<\/p>\n\n\n You\u2019ve successfully uploaded files to the ESP32 filesystem using the plugin.<\/p>\n\n\n\n Using the filesystem uploader plugin is one of the easiest ways to upload files to the ESP32 filesystem. Check the following project to see how to build a web server using HTML and CSS files stored on the filesystem: ESP32 Web Server using SPIFFS (SPI Flash File System)<\/a>.<\/p>\n\n\n\n Another way to save data permanently is using the ESP32 Preferences library. It is especially useful to save data as key:value pairs in the flash memory. Check the following tutorial:<\/p>\n\n\n\n For more projects with ESP32, check the following resources:<\/p>\n\n\n\n The ESP32 contains a Serial Peripheral Interface Flash File System (SPIFFS). SPIFFS is a lightweight filesystem created for microcontrollers with a flash chip, which is connected by SPI bus, like … <\/p>\n\n
\n
\n
Introducing SPIFFS<\/h2>\n\n\n\n
\n
\n
Installing the Arduino ESP32 Filesystem Uploader<\/h2>\n\n\n\n
\n
Windows Instructions<\/h3>\n\n\n\n
![\"Download](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2019\/07\/ESP32-SPIFFS-Download-installer.png?resize=657%2C324&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n![\"Arduino](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2018\/10\/Arduino-Sketchbook-location.png?resize=802%2C479&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n![\"creating](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2018\/10\/creating-tools-folder-sketchbook-location.png?resize=675%2C229&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n<Sketchbook-location>\/tools\/ESP32FS\/tool\/esp32fs.jar<\/strong><\/code><\/pre>\n\n\n![\"install](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2018\/10\/install-filesystem-plugin-folder-structure.png?resize=750%2C131&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n![\"ESP32](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2018\/10\/sketch-data-upload.png?resize=295%2C391&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\nMacOS X<\/h3>\n\n\n\n
<\/figure><\/div>\n\n\n~Documents\/Arduino\/tools\/ESP32FS\/tool\/esp32fs.jar<\/strong><\/code><\/pre>\n\n\n![\"Install](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2018\/10\/install-filesystem-plugin-folder-structure-mac-os-X.png?resize=1024%2C347&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n![\"ESP32](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2022\/04\/ESP32-Data-Sketch-Upload-Menu-Arduino-IDE-Mac-OS.png?resize=750%2C765&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\nUploading Files using the Filesystem Uploader<\/h2>\n\n\n\n
![\"Arduino](\"https:\/\/i0.wp.com\/rntlab.com\/wp-content\/uploads\/2018\/09\/show-sketch-folder.png?w=1200&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n![\"ESP32](\"https:\/\/i0.wp.com\/rntlab.com\/wp-content\/uploads\/2018\/09\/data.fodler.png?w=1200&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n![\"ESP32](\"https:\/\/i0.wp.com\/rntlab.com\/wp-content\/uploads\/2018\/09\/text_txt.png?w=1200&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n![\"ESP32](\"https:\/\/i0.wp.com\/rntlab.com\/wp-content\/uploads\/2018\/09\/sketch-data-upload.png?w=1200&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n![\"SPIFFS](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2018\/10\/connecting.png?resize=650%2C344&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n![\"SPIFFS](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2018\/10\/spiffs-uploaded.png?resize=650%2C211&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\nTesting the Uploader<\/h2>\n\n\n\n
\/*********\n Rui Santos\n Complete project details at https:\/\/randomnerdtutorials.com \n*********\/\n\n#include "SPIFFS.h"\n \nvoid setup() {\n Serial.begin(115200);\n \n if(!SPIFFS.begin(true)){\n Serial.println("An Error has occurred while mounting SPIFFS");\n return;\n }\n \n File file = SPIFFS.open("\/test_example.txt");\n if(!file){\n Serial.println("Failed to open file for reading");\n return;\n }\n \n Serial.println("File Content:");\n while(file.available()){\n Serial.write(file.read());\n }\n file.close();\n}\n \nvoid loop() {\n\n}\n<\/code><\/pre>\n\t![\"ESP32](\"https:\/\/i0.wp.com\/rntlab.com\/wp-content\/uploads\/2018\/09\/testing-file-system-serial-monitor.png?w=1200&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\nWrapping Up<\/h2>\n\n\n\n
\n