Description:
Imagine you are building an Arduino project that collects sensor readings, plays stored audio files, or records information for later use. As your project grows, you may need extra storage beyond the microcontroller's built-in memory. This is where the Micro SD Card Module Reader becomes useful.
Designed for projects using the Arduino UNO R3, Mega 2560, Nano, and compatible microcontrollers, this module provides a convenient way to read data from and write data to a MicroSD memory card. Its onboard 3.3V voltage regulator helps provide the appropriate supply voltage for the card interface, making it easier to integrate into supported electronics projects.
The module communicates with the controller through the SPI interface, allowing your program to save sensor measurements, store configuration data, retrieve files, and manage other supported information. For example, you could build a temperature data logger, create an audio-related project, or develop an embedded system that records operating information.
Its compact design makes it suitable for breadboard prototyping, robotics, IoT applications, and DIY electronics. Whether you are a student learning microcontroller programming or a hobbyist developing a practical project, this Micro SD Card Reader Module offers a convenient way to add removable memory storage.
Note : Check the module's pin connections, supported card capacity, and voltage requirements before use. An MP3 player application may also require a compatible audio decoder and additional hardware.
Specifications:
| Specification | Details |
|---|---|
| Product Type | Micro SD Card Reader Module |
| Card Type | MicroSD / TF Memory Card |
| Interface | SPI |
| Voltage Regulator | Onboard 3.3V Regulator |
| Function | SD Card Data Reading & Writing |
| Compatible Boards | Arduino UNO R3, Mega 2560, Nano & Compatible Boards |
| Communication | SPI Serial Communication |
| Application | Data Storage & Data Logging |
| Module Use | Arduino, ARM MCU & Embedded Systems |
| Mounting | Suitable for Breadboard & DIY Prototyping |
| Main Function | External Removable Memory Interface |
Features:
| Feature | Details |
|---|---|
| MicroSD Card Support | Supports MicroSD/TF memory cards for convenient removable data storage. |
| SPI Interface | Uses the SPI communication interface for reliable data transfer with compatible microcontrollers. |
| Onboard 3.3V Regulator | Built-in 3.3V voltage regulation helps simplify integration with compatible Arduino and embedded projects. |
| Read & Write Function | Allows the connected microcontroller to read data from and write data to the MicroSD card through programming. |
| Arduino Compatible | Suitable for Arduino UNO R3, Mega 2560, Nano and other compatible development boards. |
| External Memory Expansion | Adds removable storage capacity to projects that require more memory for data or files. |
| Compact Module Design | Small module format makes it convenient for breadboard prototyping and DIY electronics projects. |
| Data Logging | Useful for storing sensor readings, measurements, system records and other project data. |
| Embedded System Support | Can be integrated with compatible ARM MCU and other embedded controller projects. |
| Easy Project Integration | Designed as a simple peripheral for Arduino, microcontroller and embedded applications. |
Applications:
- Arduino Projects Add MicroSD storage to Arduino UNO R3, Mega 2560, Nano and compatible boards.
- Data Logging Systems Store temperature, humidity, sensor readings, measurements and other collected data.
- IoT Projects Save device readings, logs and other information for later analysis.
- Robotics Projects Record robot operating data, sensor information and activity logs.
- MP3 & Audio Projects Use MicroSD storage for reading audio files in compatible playback systems.
- Embedded Systems Provide external removable memory for compatible ARM MCU and microcontroller applications.
- Automation Projects Store machine data, event records and operating information.
- DIY Electronics Add affordable removable storage to custom electronic circuits and prototypes.
- Monitoring Systems Save readings and records from various sensors over extended periods.
- Educational Projects Useful for learning SPI communication, memory storage and Arduino-based data handling.
Safety Precautions:
- Use the Correct Voltage Operate the module with the recommended voltage and ensure the power supply is stable before connecting it.
- Check Wiring Carefully Verify the VCC, GND, and SPI connections before powering the module to avoid incorrect connections.
- Insert the MicroSD Card Properly Insert and remove the memory card gently to prevent damage to the card slot or MicroSD card.
- Avoid Removing the Card During Data Transfer Do not remove the MicroSD card while the Arduino or microcontroller is reading or writing data, as this may cause data corruption.
- Protect From Moisture & Static Keep the module away from water, excessive humidity, and strong electrostatic discharge during handling and operation.



