WRD2L Datasheet
Hangzhou Tuya Information Technology Co., Ltd.
7
V1.0.0
Pin No.
Symbol
I/O Type
Function
4
GPIO23
I/O
Hardware PWM pin, which is connected to
GPIO23 (pin 33) on the internal IC
5
GPIO22
I/O
Hardware PWM pin, which is connected to
GPIO22 (pin 34) on the internal IC
6
GND
P
Power supply reference ground pin
7
3V3
P
Power supply pin (3.3 V)
Note:
P
indicates power supply pins, and
I/O
indicates input/output pins.
2.3 Test Pin Definition
Table 2-2 WRD2L test pins
Pin No.
Symbol
I/O Type
Function
N/A
GND
P
Power supply reference ground pin
N/A
RST
Input
Hardware reset pin (It is at a high level by
default and is active at a low level.)
N/A
U_TX
I/O
UART_TX (user-side serial interface)
N/A
U_RX
I/O
UART_RX (user-side serial interface)
N/A
L_TX
I/O
Log TX pin
N/A
L_RX
I/O
Log RX pin
Note:
Test pins are not recommended.
