Geolinker ESP32 GSM & GPS Cellular IoT Development Board (ESP32-S3 + SIM868)

Build powerful GPS tracking and cellular IoT applications with the Geolinker GL868, an all-in-one development board that combines the performance of the ESP32-S3, SIM868 GSM/GPRS, and GNSS GPS into a single compact platform.

Unlike traditional IoT setups that require separate ESP32, GSM, GPS, and power management modules, the GL868 integrates everything into one ready-to-use board, allowing faster development, cleaner wiring, and more reliable deployments.

🎥 Getting Started Video

Documentation & Wiki:
 Geolinker GL868 Official Wiki

Key Features

• ESP32-S3 Powered – Dual-core 240MHz processor with WiFi and Bluetooth LE support.
• Integrated GSM Connectivity – Built-in SIM868 module for SMS, HTTP, GPRS, and voice communication.
• Multi-Constellation GPS – Supports GPS, GLONASS, and BeiDou for accurate location tracking.
• Battery Charging Circuit – Onboard LiPo charging and power management system.
• Motion Detection Support – Integrated accelerometer enables wake-on-motion functionality.
• USB Type-C Interface – Convenient programming, debugging, and charging.
• Integrated Antennas – Built-in GSM and GPS antennas eliminate the need for external antennas.
• Developer Friendly – Compatible with Arduino IDE, PlatformIO, and ESP-IDF.

Why Choose Geolinker GL868?

Traditional GPS tracking projects often require multiple hardware modules:

• ESP32 Controller
• GPS Module
• GSM Module
• Battery Charger
• Power Management Circuit

With the Geolinker GL868, everything is integrated into a single board, helping you:

• Reduce wiring complexity
• Accelerate development time
• Improve reliability
• Reduce overall project cost
• Optimize power consumption

 Perfect For

• Vehicle Tracking Systems
• Fleet Management Solutions
• Asset Tracking Devices
• Personal GPS Trackers
• Anti-Theft Systems
• Logistics Monitoring
• Remote Monitoring Projects
• Industrial IoT Applications
• Agricultural Monitoring Systems
• Cellular IoT Prototyping

Technical Specifications

Package Includes

• 1 × Geolinker GL868 ESP32-S3 GPS GSM Development Board
• Integrated GSM Antenna
• Integrated GPS Antenna
• USB Type-C Interface

Developer Friendly

• Open-source hardware design
• Extensive tutorials and documentation
• GPS tracking examples
• HTTP and cloud connectivity support
• SMS command implementation
• Voice call handling support
• Ready for custom IoT dashboards

Designed & Made in India

The Geolinker GL868 is proudly designed and manufactured in India, providing a powerful alternative to TTGO T-Call and similar ESP32 GSM development boards while offering integrated GPS tracking and cellular IoT connectivity in a compact form factor.