Description

MicroSD Card Adapter Module Board TF Card Data Storage Read SPI Interface with Level Shift 6Pin Expansion Board Module Promotion

describe:

This module (MicroSD Card Adapter) is a Micro SD card reading and writing module. Through the file system and the SPI interface driver, the microcontroller system can complete the reading and writing of the files in the MicroSD card. Arduino users can directly use the SD card library that comes with the Arduino IDE to complete the card initialization and read/write

The module features are as follows:

1. Support Micro SD card, Micro SDHC card (high speed card)

2. On-board level conversion circuit, that is, the interface level can be 5V or 3.3V

3. The power supply is 4.5V~5.5V, and the onboard 3.3V voltage regulator circuit

4. The communication interface is a standard SPI interface

5.4 M2 screw positioning holes for easy installation

Control interface: a total of 6 pins (GND, VCC, MISO, MOSI, SCK, CS), GND is the ground, VCC is the power supply, MISO, MOSI, SCK is the SPI bus, and CS is the chip select signal pin;

3.3V voltage regulator circuit: The 3.3V output from the LDO voltage regulator supplies power to the level conversion chip and Micro SD card;

Level conversion circuit: the signal in the direction of the Micro SD card is converted into 3.3V, and the MISO signal in the direction of the control interface from the MicroSD card is also converted into 3.3V, which can be read by the general AVR microcontroller system;

Micro SD card holder: It is a self-elastic card holder, which is convenient for card insertion and removal.

Positioning holes: 4 M2 screw positioning holes with a diameter of 2.2mm, which make the module easy to install and position and realize the combination between modules;