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This micro SD card module gives a microcontroller project access to genuine, expandable storage, supporting micro SD cards up to 2GB and higher-capacity micro SDHC cards up to 32GB, using the standard SPI communication interface most microcontrollers already support natively. That combination of capacity and a familiar interface makes it a common choice for data logging, storing audio clips, saving images from a camera module, or holding configuration files too large to fit in a microcontroller's own limited flash memory.
Because it handles both card types, the same module scales from a small logging project on a 2GB card up to a much larger media storage project using a 32GB SDHC card, without needing a different breakout board for each capacity range.
A key feature is its dual-voltage design: the module includes level conversion circuitry for both 5V and 3.3V interfaces, alongside its own onboard 3.3V voltage regulator that supplies the SD card itself with the correct voltage regardless of whether the connected microcontroller runs at 5V or 3.3V logic. Power supply input is rated at 4.5V to 5.5V, and the standard SPI communication interface keeps wiring and software both straightforward.
The board includes 4 M2 screw positioning holes for secure mounting, and measures a compact 4.1cm by 2.4cm, small enough to fit into most project enclosures alongside other modules.
Any Arduino, ESP32 or similar microcontroller project needing to log sensor data over time, play back audio files, or store more data than fits in onboard flash will find this SD card module a standard, dual-voltage-compatible way to add that storage.
Micro SD cards up to 2GB and micro SDHC cards up to 32GB.
Standard SPI.
Yes, it includes level conversion for both voltage levels.
Yes, it has an onboard 3.3V voltage regulator supplying the card directly.
Through 4 M2 screw positioning holes.
| Brand | Generic |
|---|---|
| Selling unit | PCS |
