{"product_id":"microsd-card-reader-spi-module-for-arduino","title":"MicroSD Card Reader SPI Module for Arduino","description":"\u003ch1\u003eMicroSD Card Reader Module – SPI Interface, 3.3V\/5V Logic\u003c\/h1\u003e\n\n\u003cp\u003eThe MicroSD Module is a compact breakout board that allows microcontrollers to read and write data to microSD cards over the SPI protocol. It is commonly used for data logging, audio playback, image storage, and configuration file management in embedded projects. With on-board level shifting, it safely interfaces with both 3.3V and 5V systems, making it versatile for a wide range of development boards.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eSPI (Serial Peripheral Interface)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V \/ 5V (with on-board regulator)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eLogic Level\u003c\/td\u003e\n\u003ctd\u003e3.3V (5V tolerant via level shifter)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSupported Card Type\u003c\/td\u003e\n\u003ctd\u003eMicroSD, MicroSDHC (up to 32GB typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e42mm x 24mm x 5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePin Header\u003c\/td\u003e\n\u003ctd\u003eStandard 0.1\" spacing (6 pins: VCC, GND, MISO, MOSI, SCK, CS)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-cold-chain-temperature-data-logger\"\u003eTemperature and humidity data logger with timestamp\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003eArduino or ESP32-based MP3 player\u003c\/li\u003e\n  \u003cli\u003eDigital photo frame displaying images from SD card\u003c\/li\u003e\n  \u003cli\u003eConfiguration file storage for IoT devices\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis module works with any microcontroller that supports SPI, including Arduino Uno, Mega, Nano, ESP8266, ESP32, and STM32. When used with 5V boards, the on-board 3.3V regulator and level shifter protect the microSD card. For 3.3V boards like Raspberry Pi Pico or ESP32, you can power the module directly from 3.3V and bypass the regulator. Note that some full-size Raspberry Pi models have a native SD card slot and may not need this module.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect VCC to 5V (or 3.3V if available), GND to common ground, and SPI pins: CS to any digital pin (often D10 on Arduino), MOSI to D11, MISO to D12, SCK to D13. Use a 10kΩ pull-up resistor on the CS line if the microcontroller does not have built-in pull-ups. Ensure the microSD card is formatted as FAT16 or FAT32 for compatibility with common libraries like SD.h.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino Uno?\u003c\/summary\u003e\u003cp\u003eYes, it works perfectly with Arduino Uno. Use the standard SPI pins (11, 12, 13) and set CS to pin 10. The module’s 5V tolerance ensures safe operation.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the maximum microSD card capacity supported?\u003c\/summary\u003e\u003cp\u003eMost modules support microSD and microSDHC cards up to 32GB. Cards larger than 32GB (SDXC) may require exFAT formatting and are not guaranteed to work with standard Arduino libraries.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDo I need to format the microSD card before use?\u003c\/summary\u003e\u003cp\u003eYes, format the card as FAT16 or FAT32. The built-in SD library on Arduino expects FAT file systems. Avoid NTFS or exFAT unless your code supports them.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445038801261,"sku":"CDN-0841","price":110.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_758263e9-4df5-4d3d-8ff1-be6fc838b6ee.jpg?v=1781513020","url":"https:\/\/compoden.com\/products\/microsd-card-reader-spi-module-for-arduino","provider":"Compoden","version":"1.0","type":"link"}