This project transforms an SD card reader into a functional USB stick, the program exposes the SD card as a USB mass storage device, allowing it to be accessed and used directly from a computer or other USB host.
- USB Mass Storage Device: Enables the SD card to function as a standard USB stick.
- Plug and Play: Automatically mounts the SD card when connected to a USB host.
Note: Transfer speeds are quite low due to the limitation of the SD card reader in SPI mode
- Hardware:
- M5Stack Cardputer
- SD card
- USB cable for power and data transfer
The default pin configuration for the SD card reader is as follows:
| Pin Name | GPIO |
|---|---|
| SD Card CS | GPIO12 |
| SD Card MISO | GPIO39 |
| SD Card MOSI | GPIO14 |
| SD Card CLK | GPIO40 |
- Insert an SD card into the reader.
- Power on the ESP32-S3 and connect it to a USB host (e.g., a PC).
- The SD card will appear as a USB mass storage device.