Introduction

A location tracking application for Particle Gen 4 devices that intelligently combines GNSS, Wi-Fi, and cellular tower geolocation to provide robust positioning even in challenging environments.

Supported devices

Hardware and supplies

• Muon or compatible Gen 4 carrier board
• M404, M524, or B504e module
• USB cable

Project description:

This tutorial demonstrates how to build a location tracking application using Particle Gen 4 devices with Quectel cellular modems. The firmware uses a non-blocking state machine to manage the location lifecycle and automatically falls back from GNSS to Wi-Fi/cell tower fusion when satellite visibility is poor. The architecture is designed for easy expansion with future features like motion detection, geofencing, and sleep management.