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99 LittleFS
Geo edited this page Sep 13, 2025
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LittleFS is a lightweight filesystem available on the ESP32 Bus Pirate, useful for storing small files directly in the flash memory.
The firmware provides a web interface accessible from your browser:

- Upload files directly into the panel
- See all stored files with their sizes
- Download files
- Delete files
⚠️ Maximum space available: about 1.5 MB- 🚫 No support for subfolders: only the root (
/) is available - 🧹 Filesystem size is fixed at compile time
With LittleFS, you can treat your ESP32 like a tiny USB stick accessible over Wi-Fi.
⚠️ Voltage Warning: Devices should only operate at 3.3V or 5V.
Do not connect peripherals using other voltage levels — doing so may damage your ESP32.