Design and Implementation of a Microcontroller-Based Temperature Control and Monitoring System for Refrigerated Trucks

Author(s)	Ms. Samiksha Shailesh Nalawade, Ms. Rajlakshmi Desai, Mr. Manas Kulkarni, Ms. Dhanshree Biradar, Dr. Pravin G. Gawande
Country	India
Abstract	The transportation of pharmaceuticals and perishables through the cold chain requires strict temperature control. This paper presents a compact and affordable overheat detection and control system using the ATmega328 microcontroller. The system tracks the internal temperature through the LM35 sensor while showing readings on an OLED display and triggering a buzzer when temperatures reach 10°C. The Peltier module functions as a cooling mechanism to bring the chamber temperature back within its desired range. The system provides an excellent solution for small refrigerated trucks and containers in mobile medical and food logistics operations because it offers portability, real-time feedback, and autonomous operation.
Keywords	ATmega328, LM35, Peltier Module, OLED Display, Overheat Detection, Cold Chain Monitoring, Embedded Systems, L293D Motor Driver, Buzzer Alarm
Field	Engineering
Published In	Volume 7, Issue 3, May-June 2025
Published On	2025-05-04
DOI	https://doi.org/10.36948/ijfmr.2025.v07i03.43686
Short DOI	https://doi.org/g9hsh5

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International Journal For Multidisciplinary Research