MICRO SD CARD READER Module for Arduino / ARM / Atmel Read and Write

The module (MicroSD Card Adapter) is a Micro SD Card read/write module, via the

file system and SPI interface driver, single-chip microcomputer system can

complete within the MicroSD Card file for reading and writing.Arduino users can

directly use the Arduino IDE comes with SD card libraries can complete the

initialization of the card and read and write


Module features below:

1. Support the Micro SD card, Micro SDHC card (the card)

2. The board level conversion circuit, namely, interface level for 5 V or 3.3 V

3. The power supply of 4.5 V to 5.5 V, the onboard 3.3 V voltage regulator

circuit

4. Communication interface for the standard SPI interface

5.4 M2 screw positioning hole, easy to install


Control Interface:

A total of six pins (GND, VCC, MISO, MOSI, SCK, CS), GND to ground, VCC is the

power supply, MISO, MOSI, SCK is the SPI bus, CS is the chip select signal pin


3.3V regulator circuit:

LDO regulator output 3.3V as level converter chip, Micro SD card supply


Level conversion circuit:

Micro SD card into the direction of signals into 3.3V, MicroSD card toward the

direction of the control interface MISO signal is also converted to 3.3V,

general AVR microcontroller system can read the signal


Micro SD card connector:

Since the bomb deck for easy card insertion and removal.


Positioning holes:

4 M2 screws positioning hole diameter of 2.2mm, the module is easy to install

positioning, to achieve inter-module combination