How to Use RFID RC522 with Arduino/ESP32
How to Use RFID RC522 with Arduino/ESP32 #diyproject #rfid #rc522 #arduino
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In this video, we demonstrate how to use the RFID RC522 module with Arduino and ESP32 for creating a secure access control system or DIY projects. The RFID RC522 is a low-cost, easy-to-use module that communicates via SPI protocol. Using RFID cards or tags, the microcontroller can detect authorized users, trigger actions like opening a door, or log access events.
We cover all the components, wiring, and connections, including VCC, GND, SDA, SCK, MOSI, MISO, and RST pins. The tutorial includes step-by-step coding, explaining the MFRC522 library, reading UID of the RFID cards, and programming the Arduino/ESP32 to perform specific actions based on card detection.
Applications of this project include smart doors, attendance systems, inventory control, and IoT automation. The video is beginner-friendly and includes a live demonstration, showing how to scan RFID cards, detect UIDs, and trigger outputs like LEDs or relays.
By the end of this tutorial, you’ll understand how the RFID module works, how to connect it with Arduino/ESP32, and how to write the code to make practical projects. This video is perfect for electronics enthusiasts, hobbyists, and students learning about RFID technology and microcontroller interfacing.
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