LINK™ The World’s First & Only Smart-Clasp™ technology:
A watch is meant to be luxurious, fashionable and a form of self-expression.
An image on the screen of a Smartwatch will never replicate or replace the beauty and craftsmanship one sees on the face of a mechanical watch. However, in our digitally driven world, watches lack functionality and connectivity.
In this presentation, various design considerations for developers when engaging in hardware design and development for wearables.
Talking points will include:
- Graphic & GUI system display,
- MCU and peripherals selection and performance consideration,
- Power management solutions,
- Mechanical structure and layout placement,
- Chip packaging and high density circuitry design, HDI & SIP,
- EMC, reliability, and production.
Jianling Weng
9. Stage 1 of LINK Design
4-layer, standard density PCBA
QFN package ICs(MCU, BLE SoC, etc)
Fine Pitch/Low Profile Connectors
Debugging/Programming Interface
10. Stage 2 of LINK Design
6-layer Very High Density PCB
Provision of Bendable/Partial Flexible PCB
WLCSP IC and 0201 Discrete Packaging
Fine Pitch/Low Profile Connector
FPC Cables
11. Stage 3 of LINK Design
Bendable Very High Density PCB
Integrated FPC cables for Display and Touch
Screen
Customized Battery Pack
12. Hardware Design Considerations
Graphic User Interface System
MCU and Peripherals
Battery and Power Management
Sensors
Bluetooth/NFC Connectivity
EMC, Usability and Reliability
15. Battery and Power Management
300mAh Li-ion Battery
Power Saving Modes
BLE SoC + Main MCU Duo Processor
Structure
16. Bluetooth Connectivity
Bluetooth Low Power
Notification from Smartphone App
Quick Response to Smartphone App
Distance Monitoring/Alarm
Audio Streaming
Other Data Exchanging
20. Software Design Challenges and
Solutions
Multicore Processing (Main MCU + BLE SOC)
GUI (PMOLED + Multi-Touch Screen)
RTOS+API
Low Power Software Design
Memory Size Constraints (Flash and RAM)
Multi Platform API Support (Android, IOS and
Windows)
21. LINK Specific Challenges
Small Screen Size Graphics
Small Screen Size Gesture Recognition
Low Power
RTOS and APIs with Limited Memory
Resources
Firmware Over-the-Air Upgradable
22. LINK Software Design
Considerations
Main Processor
FreeRTOS
emWin Middleware
LINK APIs
BLE SoC
BLE stack
LINK Battery and Power Management
BLE LINK APIs
23. APP Development
Wearatec Inc. is seeking partnership with
software developers or software developing
companies