Adafruit microSD card breakout board
microSD breakout with level shifting for 3.3V and 5V systems, communicating over SPI. Includes a 3.3V regulator so it can run from a 5V supply; onboard pull-up resistors are included.
microSD breakout with level shifting for 3.3V and 5V systems, communicating over SPI. Includes a 3.3V regulator so it can run from a 5V supply; onboard pull-up resistors are included.
Module supply; use 3.3 V unless the breakout explicitly accepts 5 V.
Ground reference.
SPI data from card to MCU.
SPI data from MCU to card.
SPI clock.
Chip select; use a dedicated GPIO.
| Pin | Type | Function | Voltage |
|---|---|---|---|
| VCC | Power | Module supply; use 3.3 V unless the breakout explicitly accepts 5 V. | 3.3V |
| GND | Ground | Ground reference. | |
| MISO | SPI | SPI data from card to MCU. | |
| MOSI | SPI | SPI data from MCU to card. | |
| SCK | SPI | SPI clock. | |
| CS | SPI | Chip select; use a dedicated GPIO. |
Module supply; use 3.3 V unless the breakout explicitly accepts 5 V.
Ground reference.
SPI data from card to MCU.
SPI data from MCU to card.
SPI clock.
Chip select; use a dedicated GPIO.
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