TFGPSLITE02 - Compact GNSS Module for Lightweight UAVs

TFGPSLITE02 bare

The TFGPSLITE02 is a compact and high-performance GNSS module designed for small, lightweight UAVs. Featuring the u-blox SAM-M8Q chipset, it provides reliable and accurate navigation by supporting multiple satellite constellations. This module integrates seamlessly with flight controllers via the Pixhawk standard “Basic GPS Port.”

Key Features

  • Multi-GNSS Support: Concurrent reception of GPS, Galileo, and GLONASS.
  • Compact Form Factor: 50 x 50 x 8 mm with an integrated patch antenna.
  • Enhanced Performance: Designed for weak signal environments.
  • Advanced Security:
    • Geofencing capabilities.
    • Spoofing detection for signal integrity.
    • Message integrity protection.
  • Operational Range:
    • Maximum altitude: 50,000 m.
    • Maximum velocity: 500 m/s.
  • Low Power: Optimized for efficient energy use.

Where to Buy

The TFGPSLITE02 can be purchased directly from us. For direct orders, bulk inquiries, or custom modifications, please contact us via email.

It is also available for online purchase through our Tindie store.

Technical Specifications

TFGPSLITE02 Top PCB View
TFGPSLITE02 Bottom PCB View

Electrical Characteristics

  • Input Voltage: 5 V.
  • Power Consumption: Typical 30 mA.

GNSS Performance

  • Cold Start Time-to-First-Fix (TTFF): 26 seconds.
  • Hot Start TTFF: 1 second.
  • Position Accuracy: 2.5 m CEP.

Environmental Tolerance

  • Operating Temperature: -40 °C to 85 °C.
  • Storage Temperature: -40 °C to 85 °C.

Interfaces

  • UART and I2C through the Pixhawk Basic GPS Port.
  • Configurable time pulse output (1 PPS).

Connection Details

The TFGPSLITE02 uses the Pixhawk “Basic GPS Port” for integration with flight controllers. The port pinout is as follows:

PinSignalVoltage
1VCC+5V
2TX (OUT)+3.3V
3RX (IN)+3.3V
4I2C SCL+3.3V
5I2C SDA+3.3V
6GNDGND

The module interfaces with the payload with the following signals:

PinSignalVoltage
1VCC+5V
2EXTINT (IN)+3.3V
3TPL (OUT)+3.3V
4GNDGND

Application Areas

  • Lightweight UAV navigation solutions.
  • Position and timing source for payloads

Integration Guidelines

  1. Connect the module to the flight controller via the Basic GPS Port.
  2. Configure the UART interface for 9600 baud communication.