TUYA WBR3L - Pin Definition

3 MODULE INTERFACES
3.2 Pin Denition
The definition of interface pins is shown in the following table:
Pin Number Symbol I/O Type Function
1 NC / It is pulled up to
be compatible
with other
modules
2 A_7 I/O GPIOA_7,
hardware PWM, IC
Pin 21
3 EN I/O Enabling pin,
which works at
the high level and
is pulled up and
controlled by a
user externally
4 A_11 I/O GPIOA_11,
hardware PWM, IC
Pin 25
5 A_2 I/O GPIOA_2,
hardware PWM, IC
Pin 18
6 A_3 I/O GPIOA_3,
hardware PWM, IC
Pin 19
7 A_4 I/O GPIOA_4,
hardware PWM, IC
Pin 20
8 VCC P Power supply pin
(3.3V)
9 GND P Power supply
reference ground
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