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