Product Manual

WBR1D Datasheet
8
Table 3-1 WBR1D interface pins
Pin No.
Symbol
I/O Type
Function
1
VCC
P
UART1 power supply pin
2
U1TX
I/O
UART1_TXD (user-side serial interface)
3
U1RX
I/O
UART1_RXD (user-side serial interface)
4
3V3
P
Power supply pin (3.3 V)
5
GND
P
Power supply reference ground pin
6
IO14
I/O
GPIO_14
7
IO12
I/O
GPIO_12
8
U0TX
I/O
UART0_TXD (used to display the module
internal information)
9
IO0
I/O
GPIO_0
10
IO5
I/O
GPIO_5
11
U0RX
I/O
UART0_RXD (used to display the module
internal information)
12
IO1
I/O
GPIO_1
13
IO4
I/O
GPIO_4
14
GND
P
Power supply reference ground pin
15
GND
P
Power supply reference ground pin
16
RESET
I/O
External reset pin
17
TOUT
AI
ADC pin
18
GND
P
Power supply reference ground pin
Note:
P indicates power supply pins, I/O indicates input/output pins, and AI indicates analog
input pins.
RESET is only a hardware reset pin and cannot clear the Wi-Fi network configuration.