Smartphones have become the center of our personal universe, and the lowest power Radio embedded in each of those phones is Bluetooth with low energy functionality, or BLE. This has led to an exponential growth in BLE since it’s Introduction. Nearly every company in every industry is trying to find creative ways to connect their products to a Smartphone, and subsequently to the cloud to create additional sources of revenue or cost savings. We'll cover some of the key applications and industries being powered by Bluetooth. Quickly introduce Bluetooth connectivity into your applications: http://bit.ly/28NdIP9

1. 1
The Applications and Industries Being
Powered by Bluetooth

2. 2
 BLE is a low power wireless technology for Personal Area Networks:
 Operates in 2.4 GHz with over-the-air throughput of up to 300 kbps (PHY Rate: 1 Mbps)
 Optimized for low-power/coin-cell battery operation
 Designed for Point-to-Point or STAR topologies
 BLE devices are typically limited to a range of a 10’s of meters
 Smartphones are used for local control and as a Gateway to the Internet
 Profiles target wearables, health & fitness, phone accessories, and medical
 No home automation or lighting profiles exist today for BLE
: Overview

3. 3
Emergence of the Internet of Things (IoT)
Size, power and resource
constrained things…
…connected to
the Internet
DESKTOP
COMPUTERS
HANDSETS | LAPTOPS | TABLETS
INTERNET OF THINGS | WEARABLES
POWER
SIZE
RESOURCES
RANG
E
POWER
SIZE
RESOURCES
RANGE
POWE
R
SIZE
RESOURCE
S
RANGE
APPS | CONNECTIVITY

4. 4
Fitness | Health | Fashion
Diving into the Wearables Market
4
$8B
2013*
$20B
2017*
*Futuresource Consulting

5. 5
 Companies competing for the same “real estate”
 Solution must stand-out to succeed
 Product differentiation
 Industrial design
 Functionality
 Ease of use (user interface, user experience, battery life)
User Experience Drives Winning Designs

6. 6
 Data collection
 Type of information and frequency
 User interaction
 Touch display, buttons, mobile app, gestures
 Connectivity
 Communication and personalization
Importance of Use Cases

7. 7
Design Trade-Offs for Wearables
Activity Tracker Fitness Band / Super Watch Smart Watch
BATTERYLIFE
FEATURES
COST
SIZE
BATLIFE
FEATURES
COST
SIZE
BAT
FEATURES
COST
SIZE

8. 8
Features Activity Tracker Fitness Band Super Watch Smart Watch
Processing
Needs
Low Medium High
MCU class Cortex-M0+ Cortex-M3 Cortex-M4 Cortex-M7 ++
DMIPS / MHz 0.94 1.25 1.25 2.14
FPU No No Yes Yes
Display None / LED Small LCD Medium LCD Color LCD
Sensors Limited Moderate Many
Wireless Bluetooth Bluetooth, GPS (optional) Bluetooth, GPS
Selecting the Right Core for the Application

9. 9
Selecting the Right Battery Technology
CR2032 Li-ion polymer
Type Disposable Rechargeable
Voltage (nom) 3.0 V 3.7 V
Capacity (typ) 240 mAh 55 – 150 mAh
Energy density (mWh/cc) 653 252
Weight 3.0 g 1.4 – 4.0 g
Recharging Circuitry No Yes
System Cost Lowest Highest
Must Balance Battery Selection versus Ease of Use, Size, and Cost

10. 10
Sensors Provide Foundation for Rich User Experience
Lower Power
Higher Power
Need to gate power or limit use of certain sensors for battery life
ENVIRONMENT
Ambient Light
Temp and RH Sensor
Barometer
BIOMETRICS
Heart Rate
Pulse Oximetry
MOTION
Accelerometer
Magnetometer
Gyroscope

11. 11
 Connectivity
 BLE is the dominant wireless solution for wearables
 Low-power operation with seamless pairing with smartphones
 Ideal for low data rate and bursty transactions — sensor data, over-the-air updates
 Personalization
 Simplified entry of user information via app — weight and height
 Customization of look and feel — changing watch face
 Need to balance benefits and use of wireless versus battery life
 Typical transmit and receive currents ~6 to 9 mA
Wireless Offers Connectivity and Personalization
Hours to Days
High Data Use
Weeks to Months
Limited Data Use

12. 12
Power
Time
Sleep
Signal
Processing
Energy
=
Power × Time
System Power Considerations
Wireless
Transaction
Data
Capture

13. 13
 Spend as much time as possible in deep sleep
 Specify wake-up sources, use low-power timer for timekeeping
 Use MCUs with fast wake-up times to avoid wasted energy
 Limit RF transactions and go back to sleep quickly
 Do as much work as possible in lowest power states
 Select MCUs with autonomous peripherals
 Monitor energy use during debug using energy profiling tools
Optimizing for Low-Power Operation

14. 14
Bringing it All Together
Use cases
Software
Algorithms
Hardware
Requirements
User
Interaction
Track step count, heart rate and calories burned. Sync with mobile app.
Optimize for
Low Power
Use Kalman filtering to extract step count from accelerometer and
additional signal processing to calculate heart-rate.
ARM Cortex-M4 MCU with FPU and fast-wake-up, accelerometer, light sensor,
LEDs, touch display and Bluetooth Smart RF.
Enter weight in app to estimate calories burned.
Publish information on touch display. Swipe to page.
Wake-up from accelerometer, collect data using autonomous peripherals
and limit auto wireless sync to once a day.

15. 15
Industrial Electronics | Lighting | Retail
A brief look at the Industrial Sector
16B
2013*
24B
2018*
*IHS Technology

16. 16
 Bluetooth beacons are taking off
 Enable “proximity-aware applications”
 End Customers benefit through
 Instant coupons and tailored offerings
 Businesses benefit through
 Improved visibility to buying habits
 Increased loyalty
Retail Beacons

17. 17
Bluetooth Beaconing Overview
 Uses Standard BLE advertisement
 Define the advertisement payload and format
 iBeacon
 Apple’s proprietary beacon format
 Functionality integrated into iOS
 EddyStone
 Open standard promoted by Google
 Integrated into Android and Chrome web browser
 Several Emerging Standards like AltBeacon
 Develop beacons with Bluetooth low energy technology

18. 18
Evolving use-case & features of Bluetooth Low Energy
Point-to-Point
Smartphone, cloud &
connectivity (4.X)
Indoor Positioning
Beaconing (4.X)
Precise Location (Future)
Smart Mesh
Flooding (Phase 1)
Routing (Phase 2)
Higher Data Rate
Extended Packets (4.2)
2 Mbps PHY (BT 5.0)
Longer Range
Higher TX Power (4.X)
Long Range PHY (5.0)

19. 19
Bluetooth SoC Tools, Modules, SDK, & Ref Designs
Introducing the Blue Gecko
ARM Cortex-M4, 40 MHz
HW Crypto Accelerator (AES, ECC, SHA)
RTC, Timers, Oscillators
Integrated DC/DC
Low active/sleep currents
1.85-3.8 V
Multi-protocol radio
2.4 GHz +19.5 dBm PA
Sub-GHz +20 dBm PA
32-256 kB Flash
16-32 kB RAM
QFN, CSP options
ADC, USARTS, I2C
Timers/PWM/Comparator
Pulse counter
Software Stacks
• Bluetooth Smart
• Proprietary RAIL, Connect, SIGFOX
Modules
• BLE
• Mesh
Reference Designs
• Home Automation
• Lighting
Simplicity Studio
• Application Notes
• Data sheets
• Reference Manuals
• Driver Libraries
• Application Builder
• Network Analyzer
• Advanced Energy Monitor
• Part configuration
• Modem calculator
• Packet configurator

20. 20
Quickly introduce Bluetooth connectivity into
your applications!
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