Product Manual

8
WBR3D Datasheet
3.2 Interface Pin Definition
Table 3-1 WBR3D interface pins
Pin No.
Symbol
I/O Type
Function
1
RST
I/O
Hardware reset pin (The module has an
internal pull-up resistor, and the reset pin
is active at a low level.)
2
ADC
AI
10-bit precision SAR ADC (See the
following Note 2.)
3
EN
Input
Module enabling pin, which is connected
to 3.3 V for normal use
4
GPIO16
I/O
GPIO_16, which needs to be connected to
a 10-kiloohm pull-up resistor when being
used
5
GPIO14
I/O
GPIO_14
6
GPIO12
I/O
GPIO_12
7
GPIO13
I/O
GPIO_13
8
VCC
P
Power supply pin (3.3 V)
9
GND
P
Power supply reference ground pin
10
GPIO15
Output
GPIO_15 (used during module power-on
and initialization; use it with caution)