ESP8266-Arduino programming example-LittleFS and data upload

LittleFS and data upload

1. Introduction to LittleFS

LittleFS is a lightweight file system created for microcontrollers that allows access to flash memory like in a standard file system on a computer, but is simpler and more limited.Supports reading, writing, closing and deleting files.

Combining ESP8266 with SPIFFS can easily store data:

• Create a configuration file with settings;
• Save data permanently;
• Create files to hold small amounts of data instead of using a microSD card;
• Save HTML and CSS files to build a web server;
• Save images, numbers and icons;
• …

This article will detail how to upload LittleFS data and how to use LittleFS.

2. Upload LittleFS in Arduino IDE

Arduino IDE does not support uploading LittleFS data by default, and you need to install a plug-in.The specific steps are as follows:

**First step:** Download the plugin, ESP8266LittleFS-2.6.0.zip

**Step 2:**Unzip and install.

After the plugin is downloaded, unzip it and copy the ESP8266LittleFS directory to the tools directory of the Arduino IDE installation directory: