SPIFFS-dat
file system arduino ide
the most simple solution is to use Arduino IDE 1.x when you need to upload a filesystem to your ESP32 board. The download links for Arduino IDE 1.x are listed here:
https://www.arduino.cc/en/software#legacy-ide-18x
https://github.com/me-no-dev/arduino-esp32fs-plugin
It does these things using two command line tools:
arduino-littlefs-upload
and more spiffs support (new)
https://github.com/earlephilhower/arduino-littlefs-upload
ESP32FS
https://github.com/me-no-dev/arduino-esp32fs-plugin/releases/
Go to the sketchbook location, and create a tools folder.
4) Unzip the downloaded .zip folder. Open it and copy the ESP32FS folder to the tools folder you created in the previous step. You should have a similar folder structure:
/tools/ESP32FS/tool/esp32fs.jar
SPIFFS Download
Here are the most common methods to download files from SPIFFS on ESP32:
1. Using a Web Server (Recommended)
- Run a web server on your ESP32 and access files via your browser.
- ESPAsyncWebServer Library: Popular for asynchronous web servers.
- Example Sketches: "FSBrowser" (File → Examples → WebServer) demonstrates serving/downloading files from SPIFFS.
- File Manager Libraries: ESPFMfGK offers drag-and-drop web interfaces for SPIFFS management.
Steps: 1. Set up ESP32 as Wi-Fi Access Point or connect to your network. 2. Upload a sketch with a web server to ESP32 (serves SPIFFS files). 3. Open your browser and go to ESP32's IP address. 4. Download files directly from the web interface.
2. Using a Dedicated File System Downloader
- Projects like
maxgerhardt/pio-esp32-esp8266-filesystem-downloaderlet you download the entire SPIFFS image over serial. - Useful for debugging and backup.
3. Accessing Files via Serial Port (Text/Debug)
- Read SPIFFS file contents and print to Serial Monitor.
- Good for debugging or small text files.
- Open Serial Monitor in Arduino IDE or other terminal to view output.
4. Third-Party Tools (ESP-IDF)
- Tools like
octopus-framework/spiffs-dumpercan extract files from SPIFFS partitions using ESP-IDF. - Useful if you prefer not to use web servers or need offline access.