Micro SD Memory Card Storage Board Module with SPI Interface

This MicroSD Card Adapter module is a Micro SD card reader module with an SPI interface via the file system driver, requiring an Arduino (or comparable) microcontroller system to complete the MicroSD system to read and write files.

Arduino users can directly use the Arduino IDE that comes with an SD card to complete the library card initialization and read-write. 

Features:

• Supports Micro SD and Micro SDHC cards (high speed card)
• The level conversion circuit board can interface with 5V or 3.3V levels
• Power supply input is 4.5V to 5.5V. The module includes an AMS1117-3.3 3.3V voltage regulator circuit to support the 3.3V level requirements
• The communication interface is a standard SPI interface
• 4x M2 screw positioning holes (2.2mm diameter) for easy installation

 Interface Description:

This module uses the standard SPI interface for communication, which involves the SPI bus, MISO, MOSI, SCK, and a CS signal pin. Through programming, the data can easily be read and written to the SD Card by using an Arduino or other microcontroller.

• CS (chip select)
• SCK (serial clock)
• MOSI (master out slave in)
• VCC (3.3V or 5V)
• GND (ground)

Typical interconnection between the Micro SD Card Module and an Arduino UNO:

1. Connect VCC to the Arduino 5V line
2. Then, connect the GND of the SD card to the ground of the Arduino
3. Connect CS to pin 14
4. Connect SCK to pin 13
5. Connect MOSI to the pin 11
6. Lastly, connect MISO to pin 12

After completing the connection, connect the Arduino to the power supply with a USB cable.

The module uses the Arduino SD Libary. Ensure that there is an Include for it in your Arduino IDE script.

Additional Resources:

Interfacing Micro SD Card Module with Arduino on Last Minute Engineers: https://lastminuteengineers.com/arduino-micro-sd-card-module-tutorial/

VIDEO: Using Micro SD Card and Data Logging with Arduino Tutorial from Robojax:

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