Product Info

Bluetooth Module Series

HC06U_Hardware_Design 16 / 31

All digital IO ports can be configured as any function of GPIO.

3.3. Power Supply

Standard 3.3 V power supply.

3.4. UART Interfaces

The UART interface is used for serial communication with a peripheral, modem (data carrier equipment,

DCE) or data set. Data is written from a master (CPU) over the APB bus to the UART interface and it is

converted to serial form and transmitted to the destination device. Serial data is also received by the

UART interface and stored for the master (CPU) to read back. The UART interface contains registers to

control the character length, baud rate, parity generation/checking, and interrupt generation. Although

there is only one interrupt output signal from the UART interface, there are several prioritized interrupt

types that can be responsible for its assertion. Each of the interrupt types can be separately enabled or

disabled by the control registers.

HC06U has 2 UARTs; the UART0 is a common 2 wire (TX/RX) controller, and the UART1 support

control (CTS/RTS). UART1 also supports ISO7816 protocols.

23 ADC_IN5 Analog-digital conversion

24 PB12 Configurable GPIO

25 PB10 Configurable GPIO

25 PB11 Configurable GPIO

27 PB13 Configurable GPIO

28 PB14 Configurable GPIO

29 GND Ground

30 ANT RF Antenna (optional)

31 GND Ground

NOTE