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WIFI232-B2 User Manual
Pin
Description
1
GND
2
Vcc 3.3V@350mA
UART Data Transmit
3
GPIO
UART Data Receive
4
GPIO
Figure 7 WIFI232
Figure 8 WIFI232 Pins Map
Name
Direction
GDN
Power
3.3V
Power
UART_TXD
O
GPIO3
I/O
UART_RXD
I
GPIO4
I/O
13 / 102
Note
Ground
External Power:
3.3V@mA
If not use UART function,
this 4 pins can be
configured as GPIO pins,
and can change GPIO pin
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