2.2 Pinout

The adapter can use up to 20 GPIO in addition to the GND and VCC connections

on the J8 and J11 headers.

Connector

Direction

RPI GPIO Name

Connection

Notes

J8-3/J11-1

Input

GPIO02

J10 Grove I2C SDA

See Note 1

J8-5/J11-3

I/O

GPIO03

J10 Grove I2C SCL

See Note 1

J8-7/J11-4

Output

GPIO04

4V Regulator Enable

J8-29/J11-11

I/O

GPIO05

J9 Grove GPIO5

See Note 1

J8-31/J11-13

I/O

GPIO06

J9 Grove GPIO6

See Note 1

J8-26/J11-15

Input

GPIO07

EEPROM WP

J8-32/J11-25

Input

GPIO12

Skywire ON/Sleep

J8-33/J11-27

I/O

GPIO13

Skywire ADC

J8-8/J11-29

Output

GPIO14

Skywire DIN

J8-10/J11-31

Input

GPIO15

Skywire DOUT

J8-36/J11-33

Input

GPIO16

Skywire CTS

J8-11/J11-35

Output

GPIO17

Skywire RTS

J8-12/J11-37

Output

GPIO18

4V Regulator PG

J8-15/J11-45

I/O

GPIO22

Skywire DIO2

See Note 1, 2

J8-16/J11-47

I/O

GPIO23

Skywire DIO3

See Note 1, 2

J8-18/J11-49

Input

GPIO24

Skywire ON-OFF

J8-22/J11-51

Input

GPIO25

Skywire Reset

J8-13/J11-55

Input

GPIO27

Skywire DTR

J8-28/J11-3

Input

ID_SC

I2C ID SCL

J8-27/J11-1

I/O

ID_SD

I2C ID SDA

*Note 1: Not configured by Device Tree Overlay (DTO)

*Note 2: Not connected by default, optional 0 ohm jumper can be connected to use the signal.

PN 1001465 rev 2

NimbeLink Corp. 2020. All Rights Reserved.

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