Jianling Weng - Hardware design and development for wearables
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Transcript of Jianling Weng - Hardware design and development for wearables
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Hardware Design and Development for Wearable TechnologiesDeveloping World’s First Smart Clasp - LINK™
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Introduction Who are we?
Wearetec Inc is a Canadian startup company based in Toronto Ontario
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Introduction What are we developing?
LINK – world’s first smart clasp
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Topics Mechanical Design of LINK LINK Design Strategy Hardware Design Considerations Software Design Considerations
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Mechanical Design of LINK Bi-folding Clasp Pushbutton Locking Mechanism Worn Interior of the Wrist Curved Surface for Comfort Stainless Steel Casing/ Curved Sapphire
Glass for Toughness
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Mechanical Design of LINK PMOLED full color display Capacitive, Multi-touch touch screen RF connectivities Heptic Feedback Motor Battery aiming 3~400mAh
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Mechanical Design of LINK Typical smart watches are designed
from the electronics out LINK need to be highly miniaturized
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Hardware Design Strategy Stage 1: Hardware concept proofing
prototype Stage 2: Device concept proofing
prototype Stage 3: Production ready prototype
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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
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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
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Stage 3 of LINK Design Bendable Very High Density PCB Integrated FPC cables for Display and
Touch Screen Customized Battery Pack
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Hardware Design Considerations Graphic User Interface System MCU and Peripherals Battery and Power Management Sensors Bluetooth/NFC Connectivity EMC, Usability and Reliability
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Display Interfaces MIPI Intel 8080 SPI
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Touch Screen Interface I2C Protocol Multi Touch and Gesture Recognition
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Battery and Power Management 300mAh Li-ion Battery Power Saving Modes BLE SoC + Main MCU Duo Processor
Structure
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Bluetooth Connectivity Bluetooth Low Power Notification from Smartphone App Quick Response to Smartphone App Distance Monitoring/Alarm Audio Streaming Other Data Exchanging
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NFC Connectivity Mobile Payment Solution Secure Access Control Contactless Control
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Sensors/Peripherals Ambient Light Sensor 6-DOF Motion Sensor
3-axis Accelerometer and 3-axis Gyroscope Optional 3-axis Magnetometer
Audio interface Optional Image Sensor Optional Health Monitor
Body Temperature, Pulse Rate, Blood Pressure and Oxygen Saturation
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Related Software Design in LINK Smart Watch Fitness Band Smart Phone Accessary
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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)
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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
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LINK Software Design Considerations Main Processor
FreeRTOS emWin Middleware LINK APIs
BLE SoC BLE stack LINK Battery and Power Management BLE LINK APIs
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APP Development Wearatec Inc. is seeking partnership
with software developers or software developing companies
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Thank You! Questions?