LoRa-Based Long-Range Defence Sensor Network for Remote Perimeter Monitoring and Intrusion Detection

The LoRa-Based Long-Range Defence Sensor Network demonstrates how ESP32-S3 microcontrollers, LoRa communication modules, PIR motion sensors, buzzers, an OLED display, and a battery-management system can be integrated into a distributed wireless monitoring prototype. The transmitting node detects motion and communicates event information to the receiving node, where the event is displayed and an audible notification is generated. The proposed architecture provides a foundation for investigating long-range communication, embedded sensor integration, portable power supplies, and wireless network performance. Its practical effectiveness must be established through measured communication range, packet delivery ratio, latency, false-alert rate, and battery operating duration. With suitable improvements in reliability and security, the design can serve as a useful academic project for Electronics and Telecommunication engineering students.

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