SOLUTION USING ALGORITHM FOR SMART WATCHES

Smartwatch – a smart wearable device, integrating many useful features and functions for users. The device not only allows time tracking but also provides a variety of information about health, physical activity and notifications from the phone. 

Understanding the importance of the device, EPI wishes to bring optimal solutions to help save energy consumption for smart watches. 

Using advanced power-saving algorithms to manage and optimize battery consumption, helps extend usage time and does not affect watch performance. Power saving modes, minimizing background activity and turning off unnecessary features when battery is low. The mode extends usage time in emergency situations, integrates fast charging technology and helps users save time when charging the battery.  

The device has the ability to customize notifications to minimize unnecessary battery consumption. You can choose to receive notifications from important applications and turn off unnecessary notifications. The solution provides smart connections such as wifi, bluetooth, health monitoring, temperature, etc. The use of low-energy electronic components from brands distributed by EPI Vietnam such as Holtek, Toshiba , Winbond, Epson,…. will bring great efficiency to customers’ smart devices. 

Specificati

  • Input voltage: 5Vdc USB  
  • Battery capacity: > 400mAh  
  • Integrate tracking features, receive notifications,…  
  • Integrated Wireless connections: wifi, bluetooth 

Advantages:

  • Health monitoring  
  • Smart connection  
  • Long battery life  
  • Durable design 

Main components used in the circuit:

1. MCU – HT32F52230  Holtek 

  • ARM Cortex-M0+, 32 bits  
  • Operating frequency: up to 40 MHz  
  • Flash: 32 KB, SRAM: 4KB  
  • Interface: UART, SPI, I2C, ADC, GPIO,..  
  • Operating voltage: 2V-3.6V

Learn more: HT32F52230

2. Nor Flash – W25Q256JVEIQ – Winbond 

  • SPI-NOR Flash Memory: 256Mbit  
  • Operating voltage: 3V  
  • Foot type: WSON-8  
  • Operating frequency: 133Mhz 

Learn more: W25Q256JVEIQ

3. FC-135 32.768 kHz – Epson

  • Dimensions: 3.2 × 1.5 × 0.80 mm
  • Operating frequency: 32.768 kHz
  • Operating temperature: -40 °C to +105 °C

Learn more: FC-135 32.768 kHz

4. Gate Driver IC & N-ch Mosfet – TCK420G – Toshiba

  • Operating voltage: 1.1-5.5V
  • Current consumption: 0.1uA (off), 85uA(on)
  • Output current: 2A
  • Turn-on impedance: 70 mΩ On/off time: 80us

Learn more: TCK420G

Other components:

  • SSM14N956L – Toshiba
  • Capacitor – Samwha

Contact EPI Vietnam Technologies – Distributor of electronic components in the Vietnamese market to receive the earliest support.

Block diagram