Upside Down Labs Micro SD Card Breakout Board (3V Only) - SPI/SDIO Interface
Upside Down Labs Micro SD Card Breakout Board (3V Only) - SPI/SDIO Interface - Image 2
Upside Down Labs Micro SD Card Breakout Board (3V Only) - SPI/SDIO Interface - Image 3
Upside Down Labs Micro SD Card Breakout Board (3V Only) - SPI/SDIO Interface - Image 4
SKU: SENS-0183
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Upside Down Labs Micro SD Card Breakout Board (3V Only) - SPI/SDIO Interface

₹112.00 (Inclusive of all taxes)
Out of Stock

This 3V-only Micro SD card breakout board provides SPI and SDIO hardware support for data logging and storage on 3.3V microcontrollers like ESP32, STM32, and Raspberry Pi Pico, ideal for capturing and storing biopotential or sensor data streams.

Features

  • Dual-interface support for SPI and high-speed SDIO (up to 4 data pins).
  • Strictly 3.3V compatible—requires 3V power and logic microcontrollers only.
  • Compact footprint (2.54cm x 2.28cm) for easy integration into portable projects.
  • Enables high-capacity, removable storage for sensor logs, audio files, and images.
  • Includes both straight and angled header pins for flexible mounting.

Out of stock

Description

Designed for 3.3V systems, this breakout board interfaces a standard Micro SD card slot with microcontroller SPI or SDIO buses. It facilitates reliable, high-capacity data storage for extended logging sessions, crucial for applications like continuous biopotential monitoring (ECG/EMG) or environmental sensing.

The board supports SDIO mode for significantly faster data transfer rates compared to standard SPI, leveraging multiple data lines to stream large files efficiently. It is specifically engineered for modern 3.3V logic microcontrollers and lacks onboard level-shifting, making it incompatible with 5V Arduino boards.

Key Features

  • Dual-protocol flexibility: Use standard SPI for simplicity or SDIO for maximum throughput.
  • Optimized for 3.3V logic families including ESP32, STM32, and Raspberry Pi Pico.
  • Compact, solderless design with breadboard-friendly pin spacing.
  • High-value build enables cost-effective, high-capacity data storage solutions.
  • Direct connection to removable, industry-standard Micro SD memory cards.

Applications

  • Long-term biopotential data logging (ECG, EMG, EEG) on portable medical devices.
  • High-frequency sensor data capture for environmental monitoring stations.
  • Audio recording and playback systems on embedded platforms.
  • Image and font storage for embedded displays and human-machine interfaces.
  • Data black box for robotics and autonomous system diagnostics.

Technical Specifications

Model / NameBreakout Board
Input Voltage3.3V (3V logic only)
Interface SupportSPI, SDIO
Board Dimensions2.54 cm x 2.28 cm
Compatible CardsMicro SD Card (not included)
Logic Level3.3V (Not 5V tolerant)

Frequently Asked Questions

Can I use this breakout board with a 5V Arduino Uno?

No, this board is strictly for 3.3V power and logic. It does not have level-shifting circuitry, so connecting its I/O pins to a 5V microcontroller like the Arduino Uno can damage both the SD card and the microcontroller. It is designed for use with 3.3V systems such as ESP32, STM32, or Raspberry Pi Pico.

What is the difference between SPI and SDIO mode, and which should I use?

SPI mode uses a simple 4-wire serial protocol (MOSI, MISO, SCK, CS) and is widely supported but has lower bandwidth. SDIO mode uses a multi-pin parallel protocol (up to 4 data lines) for significantly higher data transfer rates, ideal for streaming audio or high-frequency sensor data. Use SPI for basic logging and SDIO if your microcontroller supports it and you require maximum speed.

Does this product include a Micro SD card?

No, a Micro SD card is not included. You must provide your own compatible Micro SD card (HC or XC ESC type) formatted with a supported file system (e.g., FAT32). The board only provides the electrical interface and card slot.

Package Includes

  • 1 x Micro SD Card Breakout Board (3V Only)
  • 1 x Straight Header Pins
  • 1 x Angled Header Pins

Additional Information

Weight 0.03 kg
Dimensions 2.28 × 2.54 cm

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