HandsFree related circuit module introduction
Bluetooth USART
HandsFree Bluetooth USART is a serial to Bluetooth module developed by HandsFree Team according to the hardware standard of the HandsFree open source project, Bluetooth_USART will also support subsequent hardware and software developed by HandsFree Team, as well as APP, PC, etc.
Bluetooth_USART Bluetooth_USART
Onboard Resources
- bluetooth 4.0 chip
- led
- 3.3V voltage regulator chip
- 5-pin serial port interface
USBTTL
HandsFree USBTTL is a USB to serial module developed by HandsFree Team according to the hardware standard of the HandsFree open source project. USBTTL will also support subsequent hardware and software developed by HandsFree Team.
Physical image.
! USB_TTL
On-board resources.
- FT232RL chip
- three LEDs
- USB micro interface
- 5-pin serial port