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Arduino ESP8266 filesystem uploader

Arduino plugin which packs sketch data folder into SPIFFS filesystem image, and uploads the image to ESP8266 flash memory.
Tested with the following Arduino IDE versions: 1.6.5-r2, 1.6.6

Installation

Make sure you use one of the supported versions of Arduino IDE and have ESP8266 core installed.
Download the tool archive from releases page.
In your Arduino sketchbook directory, create tools directory if it doesn't exist yet. You can find the location of your sketchbook directory in the Arduino IDE at File > Preferences > Sketchbook location.
Unpack the tool into tools directory (the path will look like <sketchbook directory>/tools/ESP8266FS/tool/esp8266fs.jar).
Restart Arduino IDE.

On OS X and Linux based OSs create the tools directory in ~/Documents/Arduino/ and unpack the files there

Usage

Open a sketch (or create a new one and save it).
Go to sketch directory (choose Sketch > Show Sketch Folder).
Create a directory named data and any files you want in the file system there.
Make sure you have selected a board, port, and closed Serial Monitor.
Select Tools > ESP8266 Sketch Data Upload menu item. This should start uploading the files into ESP8266 flash file system. When done, IDE status bar will display SPIFFS Image Uploaded message. Might take a few minutes for large file system sizes.

Screenshot

Credits and license

Licensed under GPL v2 (text)
Maintained by Ivan Grokhotkov (ivan at esp8266 dot com)

Issues and suggestions

File issues here on github, or ask your questions on the esp8266.com forum.