In the wave of the Internet of Things (IoT) and smart hardware, precise and reliable positioning has become a "must-have" feature for numerous devices. Whether it’s in-car navigation speeding down the highway, a smartwatch on the wrist, or a drone soaring in the sky, they all rely on a powerful "heart"—The E108-GN series multi-constellation satellite positioning and navigation modules launched by Chengdu EBYTE have become a popular choice in the market due to their high performance, low power consumption, and rich product lineup.

E108-GN Series GNSS solution Overview

The E108-GN series is a cost-effective GNSS solution developed by EBYTE for application scenarios such as in-car navigation, smart wearables, drones, and asset tracking. Modules in this series generally offer the following core advantages:

  • Multi-System Support: Fully compatible with joint positioning or independent positioning of three global satellite navigation systems—BDS (China BeiDou), GPS (USA), and GLONASS (Russia). With more visible satellites, positioning speed is faster, and performance is particularly outstanding in complex urban environments.

  • High Sensitivity and Accuracy: Adopting an advanced RF-baseband integrated design, it features high receiving sensitivity (typical cold-start acquisition sensitivity of -148dBm) and excellent positioning accuracy (horizontal positioning accuracy up to 2.5m CEP).

  • Low-Power Design: Optimized for portable and mobile devices, supporting multiple power modes with a typical tracking current of less than 20mA, effectively extending device battery life.

  • Small-Size Packaging: Available in various package sizes (e.g., 10.1×9.7×2.4mm SMD package), easy to integrate into space-constrained products.

  • Standard Interfaces and Protocols: The main communication interface is UART, outputting standard NMEA0183 protocol data with strong compatibility, significantly shortening users’ development cycles.

Typical Models: Meeting Diverse Application Needs

The E108-GN series includes multiple models to adapt to different performance, size, and cost requirements. Below are several representative models:

  1. E108-GN02: Classic Entry-Level, Cost-Effective Choice

    • Core Features: As the classic model of the series, the E108-GN02 is based on the mature GK9501 chip solution, ensuring stability and reliability. It supports BDS/GPS/GLONASS three systems with a maximum positioning update rate of 10Hz, sufficient for most conventional positioning and navigation needs.

    • Application Scenarios: Cost-sensitive mass consumer applications such as in-car OBD, logistics trackers, and shared bike locks.

    • Advantages: Obvious price advantage, stable performance, and fully verified in the market.

  2. E108-GN03 Series: Balanced Performance, First Choice for Mainstream Applications

    • Core Features: This series is based on Zhongke Micro’s AT6558R chip solution, with improved performance while maintaining high cost-effectiveness. In addition to supporting three-system positioning, it has higher sensitivity and better performance in positioning accuracy and speed.

    • Application Scenarios: Mid-to-high-end in-car navigation, smart wearable devices (e.g., sports watches), drone flight controllers, and industrial handheld terminals.

    • Advantages: Achieves a good balance between performance, power consumption, and cost, making it an ideal choice for mainstream market applications.

  3. E108-GN04 Series: High-End Performance, Supporting Four Systems

    • Core Features: On the basis of supporting BDS, GPS, and GLONASS, the E108-GN04 series further adds support for the GALILEO (EU Galileo) system, enabling four-system joint positioning. This means more visible satellites in the sky, and positioning reliability and accuracy are more advantageous in complex environments (e.g., urban canyons). Its maximum positioning update rate is also higher.

    • Application Scenarios: Applications with extremely high requirements for positioning performance, reliability, and continuity, such as high-level drone navigation, high-precision timing, surveying and mapping equipment, and advanced driver assistance systems (ADAS).

    • Advantages: More powerful satellite system support brings top-tier positioning performance and reliability.

4. E108-TB-01 GNSS Satellite Positioning Module Test Kit

The E108-TB-01 is a test board designed by Ebyte for the Exx108-GN0xS series positioning modules, significantly reducing the user's development cycle. For detailed information on the Exx108-GN0xS, please visit the official website to download relevant information for this model.

Application and Selection Recommendations

When selecting modules from the E108-GN series, developers should weigh the following factors based on specific project requirements:

  • Pursuing Ultimate Cost: Choose the E108-GN02, which provides the most basic and reliable positioning capability.

  • Balancing Performance and Price: Choose the E108-GN03 series, which is the "sweet spot" for most smart hardware projects.

  • Needing Top-Tier Performance and Reliability: Choose the E108-GN04 series, where four-system support guarantees complex applications.

  • Pay Attention to Packaging and Interfaces: Select SMD or wired models according to the product’s structural size, and confirm hardware design compatibility such as UART interface levels.

In summary, EBYTE’s E108-GN series GNSS modules equip various IoT devices with "sky eyes" through a complete product lineup from entry-level to high-end. Their excellent multi-constellation positioning capability, low-power characteristics, and compact size make them reliable partners for engineers in implementing precise location-aware functions. By selecting the appropriate E108-GN model based on your project goals, you can efficiently and economically empower your innovative products.