legacy wiki page == https://www.electrodragon.com/w/index.php?title=Category:Memory
USB
USB-CDC-dat - USB-HID-dat - USB-MSC-dat - USB-DFU-dat - WebSerial-dat
ESP32-S3-SDK-dat SPIFFS over USB
| Method | How it Works | Pros | Cons |
|---|---|---|---|
| USB CDC (Serial) | Use ESP32 as a virtual COM port, send file chunks, write to SPIFFS. | Simple, fast, Arduino example ready. | Needs a custom PC-side tool. |
| USB HID | Implement HID protocol, PC app sends packets, ESP32 writes them to SPIFFS. | Works like a custom USB device (gamepad style). | More coding, needs PC app to talk HID. |
| USB MSC (Mass Storage) | Make ESP32 appear as a USB flash drive, map it to SPIFFS/LittleFS. | Very user-friendly (drag & drop files). | More complex, risk of flash corruption if PC writes incorrectly. |
| USB DFU / WebSerial | Use DFU or ESP Web Tools to push files. | Standard protocol, browser-based. | May need partition config. |
SDIO
use a tools instead of fat fingers
