{"product_id":"mfrc522-1356mhz-rfid-readerwriter-module-for-arduino","title":"MFRC522 13.56MHz RFID Reader\/Writer Module for Arduino","description":"\u003ch1\u003eMFRC522 13.56MHz RFID Reader\/Writer Module with SPI Interface\u003c\/h1\u003e\n\n\u003cp\u003eThe MFRC522 RFID module is a compact 13.56MHz contactless reader\/writer based on the NXP MFRC522 IC. It supports ISO\/IEC 14443 A\/MIFARE and NTAG tag types, making it ideal for access control, attendance systems, and IoT projects. With SPI communication, it easily connects to popular microcontrollers for reading and writing NFC tags.\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\u003eOperating Frequency\u003c\/td\u003e\n\u003ctd\u003e13.56 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCommunication Interface\u003c\/td\u003e\n\u003ctd\u003eSPI (up to 10 Mbps)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSupported Tag Types\u003c\/td\u003e\n\u003ctd\u003eMIFARE Classic, MIFARE Ultralight, NTAG2xx\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e2.5V - 3.6V (3.3V typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRead Range\u003c\/td\u003e\n\u003ctd\u003eUp to 5 cm (with included antenna)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCurrent Consumption\u003c\/td\u003e\n\u003ctd\u003e13-26 mA (typical)\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-arduino-rfid-door-lock\"\u003eRFID door lock with solenoid or servo control\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003eAutomated attendance system logging card UIDs\u003c\/li\u003e\n  \u003cli\u003eSmart inventory tracker with tagged items\u003c\/li\u003e\n  \u003cli\u003eContactless payment terminal using MIFARE wallets\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eWorks with Arduino (Uno, Mega, Nano via SPI), Raspberry Pi (enable SPI interface), and ESP8266\/ESP32. The module requires 3.3V power and logic; for 5V systems, use level shifters or a 3.3V-compatible breakout. Pairs well with the MFRC522 library for Arduino and the Pi mfrc522 Python package.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect SDA to SS (CS), SCK to SCK, MOSI to MOSI, MISO to MISO, and RST to a digital pin. The IRQ pin is optional. Always provide 3.3V to VCC and ensure all logic signals are at 3.3V to prevent damage.\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 with Arduino Uno using the SPI pins (10-13) and the MFRC522 library. However, the module is 3.3V — use level shifters on the SPI lines if powering from 5V, or opt for a 3.3V-tolerant board.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes it work with Raspberry Pi?\u003c\/summary\u003e\u003cp\u003eYes, enable SPI via raspi-config and use the mfrc522 Python library. Connect to the Pi’s 3.3V supply and SPI pins; no level shifting needed.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat tags are included?\u003c\/summary\u003e\u003cp\u003eThe module is sold without tags. Compatible tags include MIFARE Classic 1K\/4K, Ultralight, and NTAG213\/215\/216. Most common RFID cards and key fobs based on these standards will work.\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":53445070422381,"sku":"CDN-0908","price":180.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_ae005218-81ee-420b-abe5-773a4fce24c1.jpg?v=1781513142","url":"https:\/\/compoden.com\/products\/mfrc522-1356mhz-rfid-readerwriter-module-for-arduino","provider":"Compoden","version":"1.0","type":"link"}