2. What is NFC?
Short Range Wireless Technology.
Provides unique advantages over other Wireless
Technologies.
Offers safe&intuitive communication
3. ◦ Easy to use wireless communication interface
for the last few centimeters
◦ Easy to use target selection, by simply holding
two devices close to each other
NFC is as easy as….
4. Wireless Short Range Communication Technology
Based on RFID technology at 13,56 MHz
Operating distance typical up to 10 cm
Compatible with today’s field proven contactless RFID
technology
Data exchange rate today up to 424 kilobits/s
RFID object
13,56MHz RF Link
5. NFC Block Diagram
Analog circutary-modulation
RF detects RF field at 13.56mhz
UART-protocol requirements
FIFO buffer-data transfer from
UART to HOST
HOST-implemented to fulfill
customer requirements
6. Various Components:
Initium
Promi
SD 102 Bluetooth
adapter
antenna for the NFC
PN531
NFC PN531 board
power supply distributor
PCB
DCE-DCE serial cable
7. Features
Not restricted to 1 to 1 comm.
Multiple devices can communicate with each other
using same frequency at 13.56MHz @ 106kb/s to
848kb/s
No special software is required.
Peer to Peer communication is possible.
Requires log power than Bluetooth.
Good choice for secure transactions contactless credit
card payments
9. Advantages
No interference due to decaying fields
Allows communication both
between two powered and passive devices
Convenient usage by simply holding the
two devices close to each other
10. Disadvantages
Data transfer rate is small compared to
blue
tooth and other wireless communications
No protection in eavesdropping
No protection in data modification
11. Conclusion
Providing secure channel will avoid the draw
backs such as evesdropping or data modification.
NFC is compatible with existing RFID
infrastructures.
NFC is an efficient technology for communications
with short ranges
