SPECIFICATIONS

One Link Covers 3 Types! Micro TF / Standard SD / MINI SD Card Reader Modules, SPI Interface, Level Shifter, 3.3V/5V Compatible for Arduino ESP32 DIY.

Key Features & Benefits:

️ Onboard Level Shifter: Compatible with both 3.3V and 5V logic levels, protects your SD card and microcontroller.

Standard SPI Interface: 6Pin breakout (GND, VCC, MISO, MOSI, SCK, CS). Works with Arduino/ESP32 SD libraries, no complex drivers.

3 Options in 1 Link: Choose from Micro TF, Standard SD, or MINI SD modules to match your project's storage needs.

Flexible Installation (Note: Different Header Status by Module):

Micro TF Module: Headers Pre-soldered, ready to use

Standard SD Module: Headers Pre-soldered, ready to use

MINI SD Module: Headers NOT soldered, soldering required (or choose our soldering service)

Wide Power Input: Supports 4.5V-5.5V input, onboard 3.3V regulator provides stable power for SD cards.

Mounting Holes: M2 screw positioning holes (2.2mm diameter) for easy and secure installation.

Product Description:

This series of SD card reader modules is the ideal storage expansion solution for your Arduino, ESP32, and other microcontroller projects. Whether you're building a temperature data logger, GPS tracker, MP3 player, or adding local storage to smart home devices, these modules handle the job effortlessly. The onboard level shifter ensures safe communication between 3.3V SD cards and 5V microcontrollers – plug and play, stable and reliable.

Critical Notes Before Use!:

【What This IS & IS NOT】This is a MODULE, NOT a finished USB Reader!:

Cannot be plugged directly into a computer's USB port as a standard card reader.

️ 【IMPORTANT: Header Status by Module】

️ 【Most Common Mistakes】

Assuming All Modules Are Ready-to-Use: Only MINI SD module requires soldering. TF and Standard SD modules come with headers pre-soldered. Please check before ordering.

Voltage Misconnection: VCC accepts 5V (regulated onboard), but NEVER apply 5V to the 3.3V pin – this will instantly destroy your SD card!

Card Type Mismatch: Ensure you select the module that matches your card type (TF / Standard SD / MINI SD are not interchangeable).

Forgetting to Format: New SD cards MUST be formatted to FAT16 or FAT32 on a PC before use with microcontrollers.s.

【Required Skills & Setup】

Required Skills: If you purchase the MINI SD module, basic soldering skills are needed (unless you choose the soldering service).

Required Tools: Soldering iron, solder, multimeter (optional).

Wiring Guide (SPI Mode):

VCC → 5V (Arduino) or 3.3V (ESP32)

GND → GND

MISO → Pin 12 (Arduino Uno) / GPIO 19 (ESP32)

MOSI → Pin 11 (Arduino Uno) / GPIO 23 (ESP32)

SCK → Pin 13 (Arduino Uno) / GPIO 18 (ESP32)

CS → Pin 4 (Arduino Uno) / GPIO 5 (ESP32) (configurable)

【Specifications】

Package Includes:

1 x Micro SD Card Reader Module

1 x Set of 2.54mm Pin Headers (Unsoldered)