SD Card Reader Module

The SD Card Reader Module enables microcontrollers and embedded systems to read from and write to SD and microSD cards easily using the SPI communication protocol. It is ideal for applications that require external data storage, such as data logging, file handling, audio storage, and configuration management.

The module supports FAT16/FAT32 file systems, allowing stored data to be accessed directly on a computer. Designed with onboard voltage regulation and level shifting, it ensures safe and reliable operation with both 3.3V and 5V microcontrollers.

Key Features

• Supports SD and microSD cards

• Uses SPI interface for fast and stable communication

• Compatible with Arduino, ESP32, ESP8266, Raspberry Pi Pico, and other MCUs

• Onboard 3.3V voltage regulator

• Built-in logic level converter for 5V systems

• Supports FAT16 and FAT32 file formats

• Easy-to-use pin header interface

• Compact and lightweight design

Technical Specifications

• Operating Voltage: 3.3V / 5V

• Logic Level: 3.3V

• Interface: SPI

• Supported Cards: SD, SDHC, microSD

• File System: FAT16, FAT32

• Operating Temperature: –20°C to +85°C

Applications

• Data logging systems

• IoT and embedded projects

• Audio and media storage

• Configuration file storage

• Sensor data recording

• Robotics projects

• DIY electronics and prototyping

Pin Description

• VCC – Power supply (3.3V / 5V)

• GND – Ground

• MOSI – Master Out Slave In

• MISO – Master In Slave Out

• SCK – SPI Clock

• CS – Chip Select

Package Includes

• 1 × SD Card Reader Module

(SD/microSD card not included)

Why Choose This Module?

✔ Reliable performance
✔ Wide microcontroller compatibility
✔ Simple integration
✔ Ideal for beginners and professionals