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.
  • 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:
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Outline
Air Module
Top
Left
Front
Right
Rear
Bottom
Ground Module
Top
Left
Front
Right
Rear
Bottom