October 4, 2016

Santa Clara Convention Center

Mission City Ballroom

Smart Home:NFC Dynamic Tags to Simplify the

Set Up and Use of IoT Devices

Gianmarco Ferrari

Topics

• IoT devices promise – The Challenge

• Simplifying IoT with NFC

• Commissioning

• Connecting

• Controlling

• Conclusion

• ST NFC Comprehensive Portfolio

2

IoT Devices PromiseThe challenge

• IoT devices in smart homes promise increased safety, comfort, and

efficiency

• Connectivity is the enabler, with IoT devices seamlessly

communicating with each end in the cloud

• Many challenges of connecting, commissioning, and controlling IoT

devices are limiting the adoption in smart homes

• Let’s se how NFC can help…

3

Simplifying IoT – NFC Commissioning

IoT Devices CommissioningThe challenge

• There is no defined standard or protocol or framework for IoT

devices commissioning

• There are many proprietary, protocol-specific and multistep, solutions

for scanning QR-codes or typing in long passwords

• Multiple commissioning flows, device related, may results in a bad

user experience - risk to slow down IoT adoption

• Confusion results, especially for devices without a UI

5

Introducing a

New Device

Retiring an

Existing Device

Copy/Replace a

Device

NFC Contribution to Commissioning

• NFC requires an explicit interaction,

• NFC is independent of underlying wireless communication technology

• NFC provides a standard secure mechanism for :

6

IoT Gateway

D - Tag

Node

Profile

WRLS

Module

Network

Key

Write Network Key

Read Node Profile

Loaded at Manufacturing

I2C

How NFC Commissioning works 1/2Smart Bulb example - Connection to the IoT Gateway

7

IoT Gateway

D - Tag

Node

Profile

WRLS

Module Network

Key

Node Added to

NetworkI2C

Power On

Reads

Network

Credential

How NFC Commissioning Works 2/2 8

IoT Gateway

D - Tag

WRLS

ModuleMemory

Block

I2C

ST NFC Ecosystem

ST NFC

Readers

ST NFC

Controller+SE+ALM

ST NFC

Dynamic Tags

9

Simplifying IoT – NFC Connecting

Connecting IoT DevicesThe Challenge

• Many IoT devices use different networking technologies for

connectivity – two of the most popular being BT and Wi-Fi

• In a smart home environment, it is critical for all networking

technologies to work together seamlessly

• Connecting IoT devices could result in a bad user experience

• BT: device discovery and device pairing.

• WiFi: open Wi-Fi settings, select the network name (SSID), enter the passcode.

11

NFC Contribution to Connecting IoT

• Connection Handover information encoded into a NFC tag enable an

instant, secure connection with a single touch

• NFC provides a STD secure mechanism for connecting:

• BT: device name and passcode encoded into NFC tag in the device.

• Wi-Fi: network name (SSID) and passcode encode into NFC tag in the device or

externally.

12

Simplified BT Pairing 13

Tap & Connect & Stream / Phone to Speaker

D - Tag

BT

ModuleDevice

Name &

Password

I2C

Reads Dev

Name/Pswd

Connect to BT

Simplified Wi-Fi Connection 14

Tap & Connect / Phone to Router

D - Tag

WiFi

ModuleMac ID &

Password

I2C

Reads Mac ID &

Password

Connect to WiFi

ST NFC EcosystemComplete Portfolio

15

D - Tag

WRLS

ModuleMemory

Block

I2C

ST NFC

Controller+SE+ALM

ST NFC

Dynamic Tags

Simplifying IoT – NFC Controlling

• Today, many IoT devices are lacking a UI

• In some cases, long range always-on connections like BT and Wi-Fi

can provide interactivity with IoT devices lacking a UI

• However, for first-time setup and explicit configuration of specific smart

home devices, it requires some user interface

NFC Controlling 17

%

NFC Contribution to Controlling IoT Devices

• NFC provides an easy-to-use, broadly compatible, bidirectional,

and secure method for controlling IoT devices without a UI allowing

interaction such as:

• Provisioning smart devices to a network

• Setting Device Configuration

• Retrieving data (when an ‘always-on’ technology’ is not used or possible)

• Retrieving Maintenance logs, even in absence of power.

• The Near Field range also provide protection from snooping and

selectivity of the IoT device target.

18

NFC Controlling

D - Tag

MCUSensor

Data Out

I2C Humidity

Sensor

In-Wall Humidity Sensor – Output Data

EH

19

NFC Controlling

D - Tag

MCUSensor

Settings

I2C

Presence

Detect

Sensor

In-Wall Presence Detect Sensor – Input Setting

EH

20

ST NFC Ecosystem

D - Tag

MCUMemory

Block

I2CSensor

EH

ST NFC

Controller+SE+ALM

ST NFC

Dynamic Tags

21

Simplifying IoT – Conclusion

NFC Technology Benefits to IoT

• Ease of use single tap executes a user’s intention

• Explicit Interaction – by requiring close proximity interaction

• Read and write capability – for interactive data exchange

• Communication with powered down devices

• Low cost – compared to other connectivity technologies

• Low energy – Tag powered by the reader

23

Simplifying IoTThe NFC Promise

• One of their biggest challenges of IoT adoption is easing the process

of connectivity while securing network access for the increasing

number of IoT headless devices

• NFC provides easy commissioning of IoT devices that may

communicate with each other using a wide range of protocols.

• NFC is widely used for simplified Wi-Fi and BT pairing

• NFC is ideal for controlling headless IoT devices

24

ST NFC Comprehensive Portfolio 25

Feature-rich• 13.56MHz interface• I2C interface• Energy harvesting• 20-bit Counter• Field Detect GPO

• Up to 200 year retention• 1M erase-write cycles• From 512bit to 64-Kbit• 128-bit password

Best-In-Class memory

High volume & quality• In-house manufacturing

• Leveraging Automotive EEPROM quality

• Leveraging Consumer EEPROM volume

Standard

compliant• NFC Forum

• ISO14443

• ISO15693

Front-End

& Back-End

Manufacturing

ST25 Tags and Dynamic Tags 26

High performing HF Readers• 13.56 MHz frequency• Very High Bit Rate (6.8Mbit/s)• Automatic Antenna Tuning• Multi Antenna support• High and Dynamic power output (1.4W)• Capacitive / Inductive wake up• Operating temperature -40°C to +125°C

• EMVco• PBOC • AECQ100

Certification

Standard Compliant• NFC Forum• ISO14443• ISO15693• ISO18092• ISO18000

High performing UHF Readers• 840-960 MHz frequency range

• High Receive Sensitivity (-90dBm)

• Low noise Voltage Controlled Oscillator

• Integrated Dense Reader Mode filters

• Tag movement detection

ST25 High Performance Readers 27

Thank You