Micro SD Card Reader Module

Add the desired memory to your Arduino project to store the data, Media, etc. Micro SD Card Reader Module also called Micro SD Adaptor is designed for dual I/O voltages. The Module is a simple solution for transferring data to and from a standard SD card. The pinout is directly compatible with Not only Arduino as shown in the diagram below, but can also be used with other microcontrollers. Micro SD Card Reader Module has an SPI interface that is compatible with any SD card and it uses a 5V or 3.3V power supply which is compatible with Arduino UNO/Mega.SD module has various applications such as data logger, audio, video, and graphics.

There are 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. With this Module, the general AVR microcontroller system can read the signal.

At the core of a micro SD card reader module is a slot or socket specifically designed to accommodate micro SD cards. This slot typically features spring-loaded contacts that securely hold the card in place while allowing for easy insertion and removal. The module also includes circuitry responsible for managing data communication between the micro SD card and the host device.                                                                                                              Click here to learn more about the SD Card Reader Module.

One of the primary functions of a micro SD card reader module is to facilitate data transfer between the micro SD card and the host device. This is achieved through the use of standard communication protocols such as Serial Peripheral Interface (SPI) or Inter-Integrated Circuit (I2C), which allow for bidirectional data exchange between the module and the microcontroller or computer. By interfacing with these protocols, the module can read data from the micro SD card, write data to the card, or perform other operations such as formatting and file management.

Micro SD card reader modules often incorporate additional features to enhance their functionality and usability. For example, many modules include built-in voltage regulators and level shifters to ensure compatibility with a wide range of host devices, including those operating at different voltage levels. Some modules may also include indicator LEDs or status pins to provide visual feedback on the card’s insertion status or data transfer activity.

Another important aspect of micro SD card reader modules is their compatibility with different types and capacities of micro SD cards. These modules are typically designed to support a wide range of micro SD card specifications, including various form factors (standard, micro, and mini), storage capacities (ranging from megabytes to terabytes), and speed classes (such as Class 4, Class 10, UHS-I, and UHS-II). This versatility allows users to choose the most suitable micro SD card for their specific application requirements, whether it involves storing multimedia files, logging sensor data, or running software applications.

In addition to data transfer, micro SD card reader modules may offer features such as hot-swapping support, which allows users to insert or remove micro SD cards while the module is powered on without risking data loss or corruption. This can be particularly useful in applications where frequent access to the micro SD card is required, such as data logging or firmware updates.

Overall, micro SD card reader modules play a crucial role in enabling data storage and retrieval in a wide range of electronic devices and systems. Their compact size, compatibility with standard communication protocols, and support for various micro SD card specifications make them indispensable tools for developers, hobbyists, and professionals alike. Whether used in consumer electronics, embedded systems, or IoT devices, micro SD card reader modules provide a convenient and reliable solution for accessing and managing data on micro SD memory cards.

Note: Product image may vary in terms of design and color of PCB from the actual product.

Interfacing with Arduino Uno:

Features:

1. Support Micro SD Card (<=2G), Micro SDHC card (<=32G) (high-speed card)
2. The level conversion circuit board that can interface level is 5V or 3.3V
3. Power supply is 4.5V ~ 5.5V, 3.3V voltage regulator circuit board
4. The communication interface is a standard SPI interface.

Package Includes:

1 x Micro SD Card Reader Module