Global positioning and wireless communication technology provider u-blox (SIX:UBXN) has introduced the u-blox LEXI-R4, a compact module specifically designed to meet the needs of size-constrained applications. With dimensions of just 16 x 16 mm, this module supports all LTE-M and NB-IoT bands while delivering an impressive 23 dBm RF output power. It also offers the flexibility to operate on 2G networks. The u-blox LEXI-R4 is well-suited for various applications, including small asset trackers like pet and personal trackers, micromobility devices, and luggage tags. Moreover, its versatility extends to other use cases such as alarm systems, vending machines, and stolen vehicle recovery, among others.
The u-blox LEXI-R4 has been conceived for size-demanding designs that proved challenging for previous modules, although still providing the same capabilities. The compact size results from a 40% footprint reduction in dimensions compared to the previous u-blox SARA-R4. The gained space can be used to potentially host larger antennas, which can improve RF (Radio Frequency) performance, or to accommodate larger-size batteries.
Another prominent feature of LEXI-R4 is its 2G fallback capability. Whenever LTE-M / NB-IoT coverage conditions are not optimal, it keeps functioning by falling back onto a 2G network. This feature is highly convenient in countries where LTE-M / NB-IoT networks have yet to be fully deployed.
Natively designed to support GNSS (Global Navigation Satellite System) AT commands, the u-blox LEXI-R4 is also ready for GNSS bundling. Its dedicated port enables easy integration with any u-blox M10-based GNSS module, for instance the u-blox MIA-M10, hence offering better performance and low-power consumption. Moreover, the module can also connect to additional positioning services such as AssistNow™ and CellLocate®.
“The u-blox LEXI-R4 is an ideal solution for size-constrained applications. Since the module supports the u-blox M10 GNSS platform, customers save execution time and resources. This is because the AT commands and a dedicated I2C port can operate the GNSS core, thus eliminating the need to integrate additional code into the MCU. In addition, the LEXI-R4 module offers a single SKU with global LPWA (low-power wide-area) coverage that simplifies logistics,” says Samuele Falcomer, Senior Product Line Manager, Product Center Cellular at u-blox.
FAQ
What is the u-blox LEXI-R4 module?
The u-blox LEXI-R4 is a compact module specifically designed for size-constrained applications that require reliable positioning and wireless communication capabilities.
What are the key features of the u-blox LEXI-R4 module?
The u-blox LEXI-R4 module supports all LTE-M and NB-IoT bands with an RF output power of 23 dBm. It also offers 2G fallback capability, allowing it to operate on 2G networks when LTE-M/NB-IoT coverage is not optimal. Additionally, it supports GNSS (Global Navigation Satellite System) AT commands and can be easily integrated with u-blox M10-based GNSS modules.
What are some common use cases for the u-blox LEXI-R4 module?
The u-blox LEXI-R4 module is commonly used in small asset trackers such as pet and personal trackers, micromobility devices, and luggage tags. However, its versatility extends to applications such as alarm systems, vending machines, and stolen vehicle recovery, among others.
How does the u-blox LEXI-R4 module offer improved performance in size-constrained designs?
The u-blox LEXI-R4 module is 40% smaller in footprint compared to the previous u-blox SARA-R4 module, allowing for potential accommodation of larger antennas or batteries. This compact size addresses the challenges of size-constrained designs while maintaining the module’s capabilities.
Can the u-blox LEXI-R4 module connect to additional positioning services?
Yes, the u-blox LEXI-R4 module can connect to additional positioning services such as AssistNow™ and CellLocate®. It offers a dedicated port for easy integration with u-blox M10-based GNSS modules, enabling enhanced performance and low-power consumption.
When will the u-blox LEXI-R4 module be available?
The first samples of the u-blox LEXI-R4 module are expected to be available by the end of Q3 2023.
