Micro SD / TF Card Reader Module — SPI Interface, Level Converter, 3.3V / 5V, for Arduino

Micro SD / TF Card Reader Module SPI Interface, Level Converter, 3.3V / 5V, for Arduino

$8.88 USD

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Micro SD / TF Card Reader Module — SPI Interface, Level Converter, 3.3V / 5V

This Micro SD / TF card reader module provides SPI-based access to Micro SD and TF memory cards from Arduino, ESP32, STM32, and any SPI-capable microcontroller. The onboard 3.3V LDO voltage regulator and bidirectional level converter allow direct connection to 5V Arduino boards without external components — the SD card always receives clean 3.3V power and logic levels regardless of the MCU supply voltage. Compatible with the Arduino SD.h library for straightforward file read/write operations.

Key Specifications

Parameter	Value
Interface	SPI (MOSI, MISO, SCK, CS)
Card Type	Micro SD / TF (FAT16 / FAT32, up to 32GB)
Supply Voltage	3.3V or 5V (onboard LDO)
SD Card Voltage	3.3V (regulated onboard)
Level Converter	Yes (5V ↔ 3.3V bidirectional)
Header Pitch	2.54mm (breadboard compatible)
Max Card Size	32GB (FAT32)

Arduino Wiring Guide

Module Pin	Arduino Uno	Arduino Mega	ESP32
VCC	5V	5V	3.3V
GND	GND	GND	GND
MOSI	Pin 11	Pin 51	GPIO 23
MISO	Pin 12	Pin 50	GPIO 19
SCK	Pin 13	Pin 52	GPIO 18
CS	Pin 10	Pin 53	GPIO 5

Why Choose This SD Card Module?

✅ Onboard 3.3V LDO + level converter — no external components needed for 5V Arduino
✅ Up to 32GB FAT32 — large storage capacity for data logging applications
✅ Arduino SD.h compatible — plug-and-play with standard Arduino SD library
✅ 2.54mm header pitch — breadboard and PCB compatible
✅ 3.3V / 5V supply — works with Arduino Uno, Mega, ESP32, STM32