Specifications

SHENZHEN B&T TECHNOLOGY Co., Ltd ZHONGSHAN B&T TECHNOLOGY Co., Ltd
10
4、Pin definition
The BW15 module has a total of 16 interfaces. As shown in the pin diagram, the
pin function definition table is the interface definition.
BW15 pin diagram
Function definition of pin
No.
Name
Functional Description
1
IO17
GPIOA_17/SD_CMD/SPI_M_D2/PWM5
2
IO18
GPIOA_18/SD_CLK/SPI_M_D3/PWM6
3
EN
Chip Enable End
4
IO2
GPIOA_2/UART1_IN/SPI_CS/I2C_SCL/PWM2
5
IO15
GPIOA_15/SD_D2/SPI_M_CS/UART2_IN/SPI_CS/I2C_SCL/PWM
3
6
IO4
GPIOA_4/UART1_CTS/SPI_MOSI/PWM4
7
IO19
GPIOA_19/SD_D0/SPI_M_D0/UART2_CTS/SPI_MOSI/I2C_SCL/
PWM7
8
VCC
3.3 V Electricity (VDD); maximum 500 mA
9
GND
Ground
10
IO20
GPIOA_20/SD_D1/SPI_M_D1/UART2_RTS/SPI_MISO/I2C_SDA/
PWM0
11
IO16
GPIOA_16/SD_D3/SPI_M_CLK/UART2_OUT/SPI_SCL/I2C_SDA/