RFID Not Detected: Check connections between the RFID module and Arduino. Ensure correct wiring of SCK, MISO, MOSI, and SDA pins. Incorrect UID: Ensure the RFID card's UID matches the one stored in ...

RFID Door Opener using Wemos D1 Mini Overview: This project utilizes a Wemos D1 Mini microcontroller along with an RFID module to create a door opener system. When a compatible RFID card is scanned, ...

Components Required To build an RFID Door lock system, we will need a few essential components. Here is a simple list of what you will need to start. Arduino UNO R3 Development Board RC522 RFID Reader ...

DIY Authentication System – Circuit Diagram Fig. 2 shows the circuit diagram of the project, which is built around an Arduino board (MOD1) and EM18 RFID reader module (MOD2). Connect the RFID module ...

Meet the Arduino Compatible RFID Reader Module. It can hold card data for up to five cards, takes seconds to program, and holds card data in EEPROM memory, which means that the cards are saved ...