ROM-Based GNSS Module for Cost-Conscious Tracking and Navigation Devices

STMicroelectronics has ehanced its GNSS product offering with the introduction of Teseo-LIV3R, a ROM-based GNSS module. The competitively-priced module provides ST’s full GNSS algorithm capability for cost-conscious tracking and navigation devices.

ST’s new GNSS module provides odometer functionality with three trip counters and a reached-distance alert, along with geofencing capabilities with up to eight configurable circles and crossing-circles alarm. Support for real-time assisted GNSS with free server access ensures uninterrupted positioning data for dependable navigation. 

Simultaneous tracking of GPS, Glonass, Beidou, and QZSS constellations, with Satellite-Based Augmentation System (S-BAS) and Radio Technical Commission for Maritime Services (RTCM) V3.1 differential positioning, ensures excellent accuracy to within 1.5 meters (50% Circular Error Probability). This module has a tracking sensitivity of -163 dBm and a time-to-first-fix less than one second which ensures high performance for demanding applications. The module is easy to use and responds to proprietary NMEA commands. 

With scalable power consumption according to accuracy, average current, and frequency of fixes, a sub-15µA standby mode with RTC backup, and support for multiple low-power modes, Teseo-LIV3R is an ideal choice for battery-sensitive applications. The low-power modes include continuous-fix with adaptive and power-saving cycled modes, periodic-fix with GPS only, and fix-on-demand with the device in permanent standby. 

To simplify and accelerate new product development, the module is FCC certified and is supported by the STM32 Open Development Environment. STM32 applications for advanced geolocation, smart tracking, and server-assisted GNSS are available, while the EVB-LIV3x evaluation board and X-NUCLEO-GNSS1A1 expansion board provide a head-start with hardware. The Teseo Suite PC tool helps easily configure settings and fine-tune performance. Developers can also join the ST GNSS community to share information and increase their understanding of the field. 

The Teseo-LIV3R is in volume production. The 9.7 x 10.1 mm LCC18 module is priced from $7.3 for orders of 1000 pieces. For more information, click here.