Product Manual

WB3S Datasheet
7
Pin No. Symbol I/O Type Function
3 EN Input Enabling pin, which is internally pulled up and
compatible with other module design
4 P14 I/O Common GPIO, which is connected to the P14
pin on the internal IC
5 PWM5 I/O GPIOP_26, which is connected to the P26 pin on
the internal IC
6 PWM4 I/O GPIOP_24, common GPIO, which is connected
to the P24 pin on the internal IC
7 PWM0 I/O GPIOP_6, which is connected to the P6 pin on
the internal IC
8 VCC P Power supply pin (3.3 V)
9 GND P Power supply reference ground pin
10 PWM1 I/O GPIOP_7, which is connected to the P7 pin on
the internal IC
11 TXD2 I/O UART2_TXD, which is used for displaying the
module internal information and is connected to
the P0 pin on the internal IC
12 RXD2 I/O UART0_RXD, which is used to display the
module internal information and connected to
the P1 pin on the internal IC
13 PWM3 I/O GPIOP_9, common GPIO, which is connected to
the P9 pin on the internal IC
14 PWM2 I/O GPIOP_8, which is connected to the P8 pin on
the internal IC
15
RXD1 I/O
UART1_RXD, which is used as a user-side
serial interface pin and is connected to the P10
pin on the internal IC
16
TXD1 I/O
UART1_TXD, which is used as a user-side serial
interface pin and is connected to the P11 pin on
the internal IC