Interfaces

This page describes general information and interface location for SmartLink Air and Ground modules.

Air Module

Top

Antenna SMA connectors

Left

• 5V DC power input socket

• Reset button

• CSI camera Port

• USB for firmware upgrade

• SPI 0 / 1

• I2C 0 / 1

• UART 0 / 1 (console and autopilot telemetry)

Pin numbers are referenced to MOLEX 53261-0671 connector pinout.

SPI1 Connector pinout - MOLEX 53261-0671

Pin	Name
1	5V OUT
2	SPI1 SCLK
3	SPI1 MISO
4	SPI1 MOSI
5	SPI1 CS0
6	GND

I2C Connector pinout - MOLEX 53261-0671

Pin	Name
1	5V OUT
2	I2C1 SCL
3	I2C1 SDA
4	I2C2 SCL
5	I2C2 SDA
6	GND

UART Connector pinout - MOLEX 53261-0671

Pin	Name
1	5V OUT
2	DBG RX
3	DBG TX
4	TEL RX
5	TEL TX
6	GND

SPI0 Connector pinout - MOLEX 53261-0671

Pin	Name
1	5V OUT
2	SPI0 SCLK
3	SPI0 MISO
4	SPI0 MOSI
5	SPI0 CS0
6	GND

TEL (Telemetry) port: TTL 3V3, Baudrate 57600

DBG (Debug) port: TTL 3V3, Baudrate 9600

Front

Front side has an integrated fan. It is important to have a clear space to allow for air flow circulation in front of this side.

Right

• Mini HDMI input

• Micro SD card slot

• Camera status LEDs

Rear

USB A connectors for peripherals connection, for instance:

• 4G / LTE modem

• Rockblock satellite communication system

• FLARM ADSB system

Bottom

Ground Module

Top

The top side has an a heatsink and mounting holes for an optional fan. It's important to have a clear space to allow for airflow circulation in front of this side.

Left

Front

SMA antenna connectors for antennas

Status LEDs:

• TX: blinking when packets are being transmitted

• RX: blinking when packets are being received

• CPU: module operating

• RSSI: signal quality

Right

• Reset button

• Fan port

Rear

• USB to connect to computer / tablet

• Ethernet port (RJ45)

• Power supply, 7-35V DC

• Serial port

Bottom

Looking for CAD files? Here they are:

CAD Model