ROM-Based GNSS Module from STMicroelectronics Targets Mass-Market Tracking and Navigation Applications

STMicroelectronics Teseo-LIV3R

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

STMicroelectronics - Teseo-LIV3R

ST’s new GNSS module provides odometer functionality with three trip counters and 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 RTCM V3.1 differential positioning ensures excellent accuracy to within 1.5 meters (50% CEP). Tracking sensitivity of –163 dBm and time-to-first-fix faster than one second ensure 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-15 µA 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 X-NUCLEO-GNSS1A1 expansion board is based on the Teseo-LIV3F tiny GNSS module
The X-NUCLEO-GNSS1A1 expansion board is based on the Teseo-LIV3F
tiny GNSS module.

The Teseo-LIV3R is in volume production. The 9.7 mm × 10.1 mm LCC18 module is priced from $7.3 for orders of 1000 pieces.

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