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Description
This work presents the design and implementation of a real-time thermal and humidity monitoring system specifically developed for the E8 laboratory within the ELI-NP infrastructure. The continuous operation of complex electronic and experimental equipment generates significant heat, leading to potential hotspots that can compromise experimental precision and equipment safety. Manual monitoring has proven insufficient for rapid intervention.
While commercial off-the-shelf solutions exist, they were identified as costly (approximately 6-7 times more expensive), rigid regarding scalability, and dependent on closed-source software. To address these limitations, we developed a custom, open-source solution based on the ESP32 microcontroller and precision AHT21 sensors integrated into custom-designed PCBs.
The proposed system features a distributed wireless architecture that eliminates complex cabling, allowing for flexible sensor placement. Collected data is transmitted to a central database and visualized through a real-time heatmap of the laboratory. This interface allows operators to instantly detect thermal anomalies and optimize environmental conditions, ensuring the reliability of the experimental setup through a cost-effective and scalable approach.
