This project presents a modular home security system designed to detect fire, gas leaks, and motion using dedicated sensor modules integrated with a CubeCell AM02 controller. The system uses LoRa wireless communication and an event-driven low-power architecture so it can provide real-time alerts while extending battery life.
This project presents the design and implementation of a modular, wireless, and energy-efficient home security system intended to improve household safety and property protection. The system integrates dedicated sensing modules for fire detection through temperature monitoring, gas leak detection using an MQ2 sensor, and motion detection using a PIR sensor. All sensors are connected to a CubeCell AM02 microcontroller, which serves as the central processing and communication unit.
The project was developed to address common limitations of traditional home security systems, such as high cost, rigid wiring, poor scalability, and high power consumption. To overcome these issues, the proposed system adopts a plug-and-play modular architecture, LoRa-based long-range wireless communication, and an event-driven operation flow. In normal conditions, the system remains in deep sleep mode to minimize energy consumption, and it wakes up only when one of the sensors detects a hazardous event. After waking, the controller reads the sensor data, validates the event, and transmits an alert wirelessly to the receiver or gateway.
A dedicated power management scheme was implemented using 3.3V and 5V DC-DC converters to support the different voltage requirements of the hardware blocks. Experimental results demonstrated successful hazard detection, reliable LoRa alert transmission, and efficient low-power behavior. Power analysis showed very low sleep current and an estimated battery life of approximately 5.8 months, indicating that the system is practical, scalable, and suitable for real home security applications.
