Bangari Nikhilvaas,V. Mahender 02 10 By utilizing IoT and advanced wireless communication technologies the LoRaBased Soldier Security System Integrated with IoT seeks to improve troops safety and realtime surveillance while they are in the field The two main components of the system are the transmitter Tx and the receiver Rx An LCD display a buzzer a LoRa transmitter module a keypad emergency button and essential sensors like SpO2 and cardiac sensors are all integrated into the Tx unit The Rx unit has an LCD display a buzzer a LoRa receiver module and Internet of Things integration for remote monitoring On the Tx side data from the sensors is continuously tracked including vital health indicators Both the Tx and Rx devices send out a warning through buzzers and LCD screens if any of the parameters exceed predetermined threshold levels or if the emergency button is touched The alarm is sent to an Internet of Things server at the same time so that higher authorities are notified in real time An ESP32 is used on the Rx side of the system for Internet of Things connectivity while an ESP32 is used on the Tx side for sensor data collection This project provides a longrange dependable lowpower communication solution that will improve overall military safety and operational efficiency while guaranteeing prompt replies in emergency scenarios Copyright (c) Journal of Science Engineering Technology and Management Science. All rights reserved 2026