User Instructions

3 Pin Descriptions
PIN SIGNAL NAME DESCRIPTION
1 GND Common ground
2 SWD_CLK Serial wire debug clock input for debug and programming
of Nordic Processor
3 SWD_DIO Serial wire debug I/O for debug and programming of Nordic
Processor
4 GPIO_10 General purpose I/O pin, P0.10 of nRF52832
5 GPIO_9 General purpose I/O pin, P0.9 of nRF52832
6 GPIO_12 General purpose I/O pin, P0.12 of nRF52832
7 GPIO_14 General purpose I/O pin, P0.14 of nRF52832
8 GPIO_22 General purpose I/O pin, P0.22 of nRF52832
9 GPIO_31 General purpose I/O pin, P0.31 of nRF52832
10 GPIO_30 General purpose I/O pin, P0.30 of nRF52832
11 GND Common ground
12 VCC External supply for the module. 2.8V - 3.6V
13 GPIO_27 General purpose I/O pin, P0.27 of nRF52832
14 I2C_SDA Master I2C Data Line，P0.29 of nRF52832
15 I2C_SCL Master I2C Clock Line，P0.28 of nRF52832
16 GPIO_23 General purpose I/O pin, P0.23 of nRF52832
17 GPIO_13 General purpose I/O pin, P0.13 of nRF52832
18 UART_RX UART_RX, P0.11 of nRF52832