High-performance EM18 125 kHz RFID card/tag reader with serial UART output. Ideal for Arduino, Raspberry Pi, IoT access control, and identification projects.
RC522 RFID Reader/Writer Module operates at 13.56 MHz using SPI/I2C/UART interfaces. Reads and writes MIFARE S50/S70 cards and key fobs, ideal for Arduino, Raspberry Pi, and IoT security projects.