Micro SD TF SD MINI SD Card Reader Module 3.3V 5V SPI Interface with Level Shifter for Arduino ESP32 Raspberry Pi Data Logger

Description

Product Overview

The Micro SD TF SD MINI SD Card Reader Module is a compact, high‑performance solution for adding reliable storage to your Arduino, ESP32, Raspberry Pi, and other microcontroller projects. Designed with a dual‑voltage interface (3.3 V/5 V) and built‑in level shifter, this module ensures seamless communication over SPI, making it ideal for data logging, IoT devices, and portable storage solutions.

Key Highlights

• Dual voltage support: 3.3 V or 5 V logic levels with automatic level shifting
• SPI interface: fast, low‑pin‑count communication with microcontrollers
• Miniature footprint: only 30 mm × 15 mm, perfect for tight spaces
• Robust, high‑speed read/write up to 25 MB/s (SDHC/SDXC)
• Integrated 5 V regulator and power‑on reset circuit for stable operation
• Compatible with Arduino, ESP32, Raspberry Pi, STM32, and more
• Easy to use: 4‑pin connector (CS, SCK, MOSI, MISO)
• Durable design with high‑quality connectors and PCB layout

Technical Specifications

• Operating Voltage: 3.3 V / 5 V (switchable via VCC pin)
• Operating Current: < 20 mA
• Interface: SPI (4‑wire)
• Maximum Clock Frequency: 10 MHz (recommended for reliability)
• Supported Memory: SD, SDHC, SDXC (up to 2 TB)
• Package Size: 30 mm × 15 mm × 3 mm
• Connector Type: 4‑pin header (MISO, MOSI, SCK, CS)
• Operating Temperature: –40 °C to +85 °C

Compatibility & Applications

This reader module is engineered for a wide range of projects:

• Arduino Uno, Nano, Mega – plug‑and‑play with the standard SPI pins
• ESP32 & ESP8266 – perfect for Wi‑Fi enabled data logging
• Raspberry Pi (Pi Zero, Pi 4, etc.) – use the 3.3 V SPI bus with level shifting
• STM32, ESP32‑C3, and other Cortex‑M microcontrollers
• Embedded systems, robotics, home automation, and portable media players

Why Choose This Module

With its compact design, built‑in level shifter, and reliable SPI interface, this Micro SD card reader eliminates the need for external voltage converters or bulky adapters. It delivers consistent performance, low power consumption, and easy integration into any project that requires reliable, high‑capacity storage. Whether you’re building a weather station, a portable data logger, or a smart home hub, this module provides the dependable storage backbone you need.