GPS and GSM modules are essential for building GPS trackers and cellular IoT systems, but they are often expensive, bulky, and available as separate components. Using separate modules increases the overall bill of materials (BOM), complicates PCB design, and makes it difficult to build compact or miniature devices where space is limited.
To overcome these limitations, this project introduces a 3 cm-sized integrated GPS and GSM combo module, combining both functionalities into a single compact design. By integrating GPS and GSM on one board, the solution significantly reduces cost, PCB space, and design complexity, making it ideal for compact tracking and IoT applications.
Key Features
- Integrated GPS and GSM functionality in a single module
- Ultra-compact 3 cm PCB form factor
- Uses a 3.3V LDO regulator capable of delivering up to 1A current
- Supports power input from a 3.7V LiPo battery or 5V external supply
- Built-in network and GPS status indicators via LED signals
- Support for SMD, UFL, or onboard antenna options
- SIM card slot for cellular connectivity
- Simple connector interface for communication with external controllers
- Fully open-source hardware design with complete BOM, schematics, and PCB files
Applications
- GPS tracking devices
- Vehicle and asset tracking systems
- Cellular IoT prototypes
- Wearable and portable tracking solutions
- Fleet management systems
- Location-based monitoring applications
This compact GPS and GSM combo module demonstrates how thoughtful integration and open-source hardware design can simplify the development of small, cost-effective, and efficient cellular tracking systems. By combining essential communication and positioning functions into a single 3 cm board, the design offers flexibility for customization while enabling rapid prototyping and deployment in real-world IoT applications.