13.56MHz RFID Reader/Writer Module With External Antenna
RFID frequency identification is a non-contact object recognition technology, it can automaticlly recognize target and get relevant data through rf signal, so there are so many interactive projects which need to use RFID to achieve object recognition. Generally speaking, one basic kit of RFID general system mainly consists of three parts as below:
Tag: composed by coupling components and chip, every tag have only electronic coding, adhere to the target object identifier;
Reader: equipment used to read (sometimes can write) tag information, can be designed for handheld or stationary;
Antenna: transmit rf signal between the tag and reader.
At present there are so many RFID module, and there are difference from the interface of Arduino, we design these two version of RFID module which connect with Arduino through serial port, and both of these two version have exact same function and connection mode, but the antenna is different.
Supported Cards
ISO 14443 TYPE A: MIFARE®, Mifare ® Classic1K, Mifare® Classic 4K
Features
1、Complete Read/Write module except antenna
2、Auto checks for presence of tags and output interrupt information
3、Contactless operating frequency: 13.56 MHz
4、Supports ISO14443A
5、UART interface with baud rate 19200bps
6、Fast data transfer, contactless communication up to 106KHZ
7、Secure Encrypted contactless communication
8、Ideal for emoney, secure access and fast data collection applications
9、Typical Operating Distance : 0 ~ 80 mm
10、Operating Voltage DC：3.0 ~ 5.5V（fully compatible with 3.3v and 5v）
11、Watchdog timer
12、1 LED indicator, 2 I/O pins for external use
13、512 bytes eeprom
14、Unique serial number on each device
15、Size: 40mm × 25mm × 6mm
16、Weight : 12g
17、Work Temperature : -20 ℃ ~ + 70 ℃
Reader/Writer Module Size
External Antenna Size
This version have separate reader and antenna, separately on two boards. Because this antenna is more bigger, therefore the detection distance can be as far as 10cm.
The working principle of RFID is actually not complex, once the tag into the working area of card reader, the reader can read the data of tag by magnetic field generated by the antenna.
According to the specific use of different scene, we can use different types of tags, different types of tags have different range.
Pin Defination
About the hardware connection, you can use the UART interface of sensor shield to connect this RFID mdule with Arduino easily.
Document Download
Click to download the datasheet、manual and SDK
Product List:
1、13.56MHz UART RFID Module ×1
2、External Antenna ×1
3、13.56MHz Mifare S50 Card 
×1
4、13.56MHz Key IC Tag 
×1
