Data Sheet

ManualsBrandsHangzhou Tuya Information Technology ManualsElectronicsWIFI-BT module

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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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