table and reliable chipset CP2102.
USB specification 2.0 compliant with full-speed 12Mbps.
Standard USB type A male and TTL 6pin connector.
6pins for 3.3V, RST, TXD, RXD, GND & 5V.
Baud rates: 300 bps to 1.5 Mbps
Byte receive buffer; 640 byte transmit buffer.
Hardware or X-On/X-Off handshaking supported.
Event character support Line break transmission.
USB suspend states supported via SUSPEND pins.
Temperature Range: -40 to +85.
Size: 42mm X 15mm.
This RFID Reader module has a built–in antenna in minimized form factor. It is designed to work on the industry standard carrier frequency of 125KHZ.
This LF reader module with an internal or an external antenna facilitates communication with read-only transponder – type UNIQUE or TK5530 Via the air interface. The tag data is sent to the host systems via the wired communication interface with a protocol selected from the module both TTL and weigend protocol.
The LF module is best suited for application in access control, time and attendance, asset management , handheld readers, immobilizers and other RFID enabled application.
Connect – 5 volts and GND
TX- TTL output can be directly connected to microcontroller (To convert TTL to UART use converter board).
D0 & D1 - Is used for weigend protocol.
· Connected – 5Volts and GND
· Plugs and play , needs +5V to become a reader
· Buzzer indicates tag reading operation
· Compact size and cost effective.
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There is 7805 regulator and two LDO for 3.3V and 1.8V respectively. The 12V rails is basically connected to the RAW input DC supply.