The Mini Micro SD Card Reader Module connects Micro SD and TF cards to microcontrollers using SPI protocol. It runs on 3.3V to 5V supply, covering Arduino Uno, Nano, and most ESP32 boards without any additional circuitry. The sd card module exposes six pins — GND, VCC, MISO, MOSI, SCK, and CS — on a standard 2.54mm header. This compact layout fits tightly inside enclosures where full-size modules do not.
One trade-off to note — this mini sd card reader supports FAT32 file system only. Cards formatted in exFAT or NTFS will not be detected. Use cards of 32GB or below for reliable results. A non-obvious detail: the M2 mounting hole allows you to bolt the module directly onto a custom PCB or 3D-printed case without hotglue or zip ties.
The mini sd card module is popular among engineering students across India for GPS trackers, automated weather loggers, and RFID-based data recorders. The sd card reader module works directly with the Arduino SD.h library. No extra drivers or configuration files are needed for basic file read and write operations.
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Features:
- SPI interface with MISO, MOSI, SCK, CS four-wire data lines
- Supply voltage range of 3.3V to 5V suits most Arduino boards
- M2 mounting hole allows bolt-on installation in enclosures
Technical specifications:
| Specification | Details |
|---|---|
| Supported Card Type | Micro SD / TF Card |
| Interface Type | SPI |
| Operating Voltage | 3.3V to 5V |
| Compatibility | Arduino and microcontrollers |
| Mounting Hole Size | M2 |
| Pinouts | GND, VCC, MISO, MOSI, SCK, CS |
 Applications:
- Arduino GPS tracker logs coordinates using Mini Micro SD Card Reader Module
- RFID attendance logger stores entry records on micro sd reader directly
- Robotics project stores path data using embedded TF card file system
Package Includes:
- 1 x Mini Micro SD Card Reader Module
Manish Khandelwal –
Loved it for my project
Sanjay Toshniwal –
No complaints with the quality
Vijay Saboo –
Mini micro SD card reader module worked reliably and interfaced easily with microcontroller development boards.
Rakesh Kasliwal –
No hidden charges, secure packaging, and damage-free delivery made this purchase highly satisfactory.
Pradeep Jhalani –
Quick shipping and safe delivery