3.35V RFID IC Reader Wireless Module, UART Interface Builtin Antenna IC KEY Card Reader Module, RDM6300 Compatible Output for Arduino MCU DIY Access Control Project

This RFID IC wireless reader module is a contactless cardreading hardware optimized for embedded DIY projects, access control systems and MCU development. It works with 3.3V5V widerange DC power supply, which matches the power specifications of mainstream Arduino, STM32 and other singlechip controllers.

Equipped with an internal builtin antenna, the module removes the need for external antenna wiring, greatly saving installation space for smallsize equipment. It adopts UART TTL serial communication interface and outputs RDM6300compatible card number data, so you can directly read IC card ID information through serial port without complex algorithm processing.

Featuring reliable cardsensing performance, it can quickly identify standard IC key fobs and contactless IC cards. Lowpower working mode makes it suitable for longterm continuous operation. Simple wiring setup, no complicated configuration required. It is widely used for access control unit modification, cardswipe detection devices, intelligent lock projects, experimental teaching and other embedded development scenarios.

Please note this is only a reader module, it cannot write data to IC cards. Confirm your mainboard supports UART TTL level before connection; levelshifting circuit may be needed for some industrial host devices.