Smart Watch

A wearable smartwatch is a sophisticated and compact electronic device that goes beyond the traditional role of timekeeping with features like fitness tracking and phone connectivity for notifications. It seamlessly integrates advanced technology into a sleek and portable design that can be worn on the wrist.

FTDI products can be integrated into the smartwatch to allow for:

- USB charging
- USB connectivity to phone or PC to allow for data download and synchronization to application software
- Firmware updates
- Configuration and more!

The example below uses FTDI’s FT234XD USB to Basic UART IC which have the following key features making it an ideal candidate for small frame applications like a smart watch:

- Single chip USB to asynchronous serial data transfer interface
- Entire USB protocol handled on the chip. No USB specific firmware programming required.
- Fully integrated 2048 byte EEPROM for customization
- Fully integrated clock generation with no external crystal required
- Data transfer rates up to 3Mbaud
- 512 bytes receive buffer and 512 bytes transmit buffer for high data throughput
- FTDI’s royalty-free drivers eliminate the requirement for USB driver development
- Battery Charger Detection which may be used by mobile devices to detect the presence of a charger on the USB port to enable higher current / faster charging of batteries
- Low operating current of 8mA (typical) and USB suspend current of 125uA (typical) current
- Extended operating temperature range: -40°C to 85°C
- Available in compact Pb-free 12 Pin DFN package (RoHS compliant)

The block diagram shows at a high level how FTDI’s FT234XD can be integrated into the smartwatch.

The USB port on the smartwatch is connected to a phone, PC or tablet. The smartwatch application software controls the FT234XD which is connected to a processor inside the smartwatch and communicates via UART protocol.