The project consists of the development of an active protection mechatronic system based on the ATmega324PB microcontroller. The system utilizes a periodic scanning algorithm to monitor a 180° sector, processing analog signals from an optical sensor to identify the infrared signature of a flame.

The proposed system offers diverse applicability, primarily targeted at monitoring industrial environments with a high fire risk, where a rapid reaction is critical to limit damages before high-capacity sprinkler systems are activated. Due to the architecture of the ATmega324PB microcontroller, which provides dual USART, SPI, and TWI interfaces, the device can be easily integrated into redundant security systems, functioning as an independent node within a larger sensor network. From a technical and educational perspective, the project serves as an ideal case study for deepening the understanding of closed-loop control systems and managing hardware interrupts in real-time.