Micro SD Memory Card Storage Board Module with SPI Interface

Where to Buy the Micro SD Memory Card Module

Micro SD Memory Card Module at Envistia Mall

Description

This MicroSD TF (TransFlash) card reader and writer includes 3.3V regulator and level shifters, making it safe to interface with most 5V and 3.3V microcontrollers, including Arduino and Arduino-compatible microcontrollers. It features an SPI interface for communication and is compatible with the standard Arduino SD card library.

The Arduino IDE (with the Arduino SD Library installed) will interface directly with this module to create files and read/write to them, and to move through directories on the SD card. This module can be used with other microcontrollers using the SPI interface, however we recommend using it with the Arduino IDE because of its SD card library support.

Features

Supports Micro SD (2GB max) and Micro SDHC (32G max high speed) cards
The level conversion circuit board can interface with 5V or 3.3V levels
Power supply input: 4.5V ~ 5.5V. The module includes a voltage regulator circuit to support the 3.3V level requirements
Communication interface: Standard SPI
Control Interface: A total of six pins, GND, VCC, MISO, MOSI, SCK, CS
Mounting holes: 4 x M2 screw holes for easy positioning. Hole diameter is 2.2mm
Size: 41mm x 24mm (1.6 x 0.95 inches)

Interface Description

The module has a male right-angle header on 2.54mm centers. It can be inserted directly into a breadboard, or female Dupont-style jumpers can be used for the connections.

CS: SPI Chip Select
SCK: SPI Clock
MOSI: SPI MOSI, connects to MOSI on MCU
MISO: SPI MISO, connects to MISO on MCU. Please note that the silkscreen may be incorrectly labeled ‘MOSO’ on some versions
VCC: 4.5V ~ 5.5V DC power
GND: Ground, must be common with the MCU

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

Connect VCC to the Arduino 5V line
Then, connect the GND of the SD card to the ground of the Arduino
Connect CS to pin 14
Connect SCK to pin 13
Connect MOSI to the pin 11
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.

Schematic

Additional Resources

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

How Does a Micro SD Card Module Work and How to Interface it with Arduino on Circuit Digest:
https://circuitdigest.com/microcontroller-projects/interfacing-micro-sd-card-module-with-arduino

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

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