Hi-Link HLK-B30, User Manual

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1.4.
Pin Introduction
Table 2 Module pin interface
Pin Network name Type Descriptions
1 CEN I Chip enabled, highly effective
2 P26_PWM5 I/O P26,PWM5
3 P24_PWM4 I/O P24,PWM4
4 P23_TDO_F_S0 I/O P23,ADC3
5 P22_TDI_F_SI I/O
ES0, enter at command mode / restore factory
settings, please pull up if not used, same as P28
6 P21_TMS_F_CS I/O P21
7 P20_TCK_F_SC I/O P20
8 VBAT P 3.3V power supply
9 P28 I/O
Enter at command mode / restore factory settings,
please pull up if not in use, same as P22
10 P16 I/O P16
11 P17 I/O P17
12 P14 I/O P14
13 P15 I/O P15
14 P6_PWM0 I/O P6,PWM0
15 GND P GND
16 P7_PWM1 I/O P7,PWM1
17 P8_PWM2 I/O WiFi Indicator light
18 P9_PWM3 I/O P9,PWM3
19 P1_URAT2_RXD I/O P1,UART2
20 P0_UART2_TXD I/O P0,UART2
21 P10_UART1_RXD I/O
P10,UART1, For upgrading, command setting
and transparent transmission
22 P11_UART1_TXD I/O
P11,UART1, For upgrading, command setting
and transparent transmission