micropython/ports/nrf/boards/NRF52840_MDK_USB_DONGLE/pins.csv

1	P2,P2,ADC1_CH0
2	P3,P3,ADC1_CH1
3	P4,P4,ADC1_CH2
4	P5,P5,ADC1_CH3
5	P6,P6
6	P7,P7
7	P8,P8
8	P9,P9
9	P10,P10
10	USER,P18,P18
11	P19,P19
12	P20,P20
13	P21,P21
14	LED_G,P22,P22
15	LED_R,P23,P23
16	LED_B,P24,P24
17	P25,P25