Product- RF ID READER / Writer Module

The RFID reader reads EM4100 family transponder tags that are brought in proximity to the reader and output the unique tag identification number through RS232 serial port @9600 bps. The reader output 12 byte including one start, stop byte and 10 unique data byte.The start byte and stop byte are used to easily identify that a correct string has been received from the reader (they correspond to a line feed and carriage return characters, respectively). The middle ten bytes are the actual tag's unique ID. Vertical and horizontal parity checking has been done in card reading algorithm to ensure data integrity. One status LED is provided to indicate card detection.
RFID (radio frequency identification) systems use data strings stored inside RFID tags or transponders) to uniquely identify people or objects when they are scanned by an RFID reader. These types of systems are found in many applications such as passport protection, animal identification, inventory control systems, and secure access control systems, robotics, navigation, inventory tracking, payment systems, and car immobilization. Because passive tags require a strong RF field to operate, their effective range is limited to an area in close proximity to the RFID reader.

Product Features

• Low-cost method for reading passive RFID EM4100 family transponder tags
• Reading Distance 10-15CM of the reader (Depend card shape)
• 125kHz read frequency
• 9600 baud RS232 serial interface
• Standard 2.54mm Pitch Bergstrip connector
• Bread Board compatible
• Low power Requirement 7-9V @ 100mA
• Small Size
• Built in Antenna
• No components at PCB bottom side ( easy to stick to any surface like wood,glass etc)
• Status LED for card detection
• On-Board Power LED

• Power requirements     :  7-9VDC
• Current Requirement    :  <110mA
• Communication            :  RS232 Serial at 9600 baud (8N1)
• Dimensions                  :  63mm x 98mm x 5 mm
• Operating temp range   : -40 to +185 °F (-40 to +85 °C)

 

This is a basic VLF RFID tag used for presence sensing, Aceess Control etc. Works in the 125kHz RF range. These tags come with a unique 32-bit ID and are not re-programmable. Card is blank, smooth, and mildly flexible.

RFID Clamshell Card (125kHz) Features:

• EM4001 ISO based RFID IC
• 125kHz Carrier
• 2kbps ASK
• Manchester encoding
• 32-bit unique ID
• 64-bit data stream [Header+ID+Data+Parity]

Dimensions: 54 x 85.5 x 1.8mm

RFID reader/writer modules are based on non-contact card reader ASCI chip compatible with ISO14443 standard. It uses  600nm CMOS EEPROM technology, supports ISO14443 type A protocol, and also supports the MIFARE standard encryption algorithm.  The chipset integrates analog modulation and demodulation circuits, only requires minimal peripheral circuits to function. The module supports UART interface.  The digital circuits has dual working voltages mode, TTL and CMOS.  The HY502 module is targeting water, electricity, gas meters, vending machines, access control, elevators, drinking fountains, telephone billing system or other identification card reader system applications. Users can simply select the desired interfaces to harvest the full operation of the system and do not need to struggle with the complicated radio base station design. HY502 series supports Mifare One S50, S70, Ultra Light & Mifare Pro, FM11RF08 and other compatible cards. It can be set to automatically find cards, by default, to automatically find cards. HY502 series is a low-power modules, wide-voltage 2.7 ~ 5.5V, using an integrated module with embedded antenna can significantly reduce PCB size.

Features

• Supports UART/I2C/SPI interface.
• Automatically detect the card close to the antenna area, and generate an interrupt signal to the host MCU.
• Employ chipset of ISO14434A standard, and support MIFARE standard encryption algorithm;
• Working voltage is between 2.7V- 5.5V, has TTL/CMOS voltage modes.
• Use industrial-grade high-performance processor, built-in hardware watchdog, with high reliability;
• Anti-jamming processing and excellent EMC performance;
• A few simple commands can cover the complicated underlying read and write card operations.

Specifications

• Voltage: 5VDC
• Current: <50mA
• Operating Frequency: 125Khz
• Read Distance: 10cm
• Size: 32mm(length) * 32mm(width) * 8mm(height)

• 5v TTL UART and wiegand interface.
• Plug and Play, needs regulated 5v to become a reader
• Low Power Consumption
• No repeat reads
• LED and Beeper indicates Tag reading operation
• Excellent read performance without an external circuit
• Compact size and cost-effective
• A very efficient module for portable readers.
• Range 8cm – 12cm.

• RS232 Interface.
• Plug and Play, needs 8-12v AC to become a reader
• Low Power Consumption
• No repeat reads
• LED and Beeper indicates Tag reading operation
• Excellent read performance without an external circuit
• Compact size and cost-effective
• A very efficient module for portable readers.
• Range up to 8-12cm.