2PCS Micro SD Storage Board Mciro SD TF Card Adapter Memory Shield Expansion Module SPI For Arduino AVR Microcontroller 3.3V Specification: The module(MicroSD Card Adapter)is aMicro SD cardreader module,and theSPI interfacevia the filesystemdriver,microcontroller systemto complete theMicroSDcardread and write files.users can directlyuse the IDEcomes withan SD cardto complete thelibrarycard initializationand read-write Module features are as follows: 1SupportMicro SD Card, Micro SDHCcard(high-speed card) 2the level conversion circuitboardthatcaninterface levelis 5Vor 3.3V 3power supply is4.5V ~ 5.5V,3.3Vvoltage regulator circuitboard 4.Communicationinterface is a standardSPI interface 5. 4M2screwpositioning holesfor easy installation Control Interface: A total of six pins (GND, VCC, MISO, MOSI, SCK, CS), GND toground, 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 SDcard 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 alsoconverted to 3.3V, general AVR microcontroller system can read the signal; Micro SD card connector: yes 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;

Shipping Included: 2PCS*Micor SD TF Card Shield Expansion Board for Arduino DIY