Astral

The Aerium Astral is a compact, high performance GNSS sensor engineered for dependable positioning and navigation across a wide range of applications. Powered by the advanced ST Teseo LIV4F module from STMicroelectronics, Aerium Astral supports multi constellation GNSS with dual band capability, including L1 and L5, sub-meter positioning accuracy, enabling enhanced accuracy, faster signal acquisition, and improved reliability in complex or obstructed environments. Integrated with the Bosch BMM150 magnetometer, it delivers stable heading and orientation data, making it well suited for autonomous platforms and embedded systems. Fully compatible with Pixhawk autopilots, Aerium Astral is optimized for recreational, commercial, and light industrial use cases where precision, efficiency, and compact design are critical.

General

• Dual-band GNSS, including L5.
• Integrated SAW and LNA filters for signal reliability.
• Compact design ideal for space-constrained unmanned systems.

Compatibility

• GNSS Receiver: STMicroelectronics Teseo-LIV4F
• Compatible with:
  • Pixhawk and other Ardupilot/PX4-based autopilots
  • Connects via standard JST-GH interface

Resources

• 3D CAD Model

Mechanical

• Dimensions: 40 mm × 40 mm
• Mounting holes: M3, spaced 30.5 mm × 30.5 mm
• Weight: ~12 g

Electrical

General

• Input voltage: 3.3 – 12 V
• Logic level: 3.3 V
• PPS (Pulse Per Second) output supported
• Integrated battery for fast TTFF (Time To First Fix)
• Top View

Pinout

Main Connector - Power + Data

• Connector Definition

  Type	Part Number	Part Name
  Board Connector	SM06B-GHS-TB	JST-GH
  Cable Connector	GHR-06V-S	JST-GH

• Connector Pinout

  Pin	Name	Description	Voltage
  1	VCC	Power Input	3.3-12V
  2	RX	UART receive (3.3 V logic)	3.3V
  3	TX	UART transmit (3.3 V logic)	3.3V
  4	SCL	I²C clock (3.3 V logic)	3.3V
  5	SDA	I²C data (3.3 V logic)	3.3V
  6	GND	Ground	GND

AUX Connector - PPS + INT

• Connector Definition

  Type	Part Number	Part Name
  Board Connector	SM04B-GHS-TB	JST-GH
  Cable Connector	GHR-04V-S	JST-GH

• Connector Pinout

  Pin	Name	Description	Voltage
  1	PPS	Pulse-per-second output (3.3 V)	3.3V
  2	INT	Interrupt / Data Ready (3.3 V)	3.3V
  3	GND	Ground	GND
  4	GND	Ground	GND

Software

Parameters

• To config and use the Astral GNSS receiver in Pixhawk based systems use the config below:
  • Baudrate: 115200
  • Protocol: NMEA
• Note: Some systems support automatic protocol detection. If it does not work, explicitly set the protocol to NMEA.