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ArticlePeer ReviewedOpen AccessPlagiarism Passed
Paper ID:IJSREM53948

Smart Thermal System Using Lm35 Sensor And 8051 Microcontroller

Stream/Area:

-

Subject:

-

Paper ID:

IJSREM53948

Volume:

9 |

11 |

Nov 2025

Pages:

Publication Frequency:

Monthly (12 issues per year)

DOI
Digital Object Identifier
Not assigned

License:International Journal of Scientific Research in Engineering and Management follows the Creative Commons Attribution 4.0 (CC BY 4.0) License, allowing free use and distribution with proper attribution.

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Authors

PP

Padmavati Pise1

SS

Snehal Shewale2

AP

Anha Pathan3

MS

Maithili Shevale4

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Abstract

This paper describes the design and development of a Smart Thermal System that automatically adjusts the speed of a cooling fan based on the surrounding temperature. The system uses an LM35 temperature sensor for accurate temperature measurement and an 8051 microcontroller for smart decision-making. As the temperature rises, the microcontroller controls the fan speed through a motor driver circuit (L293D) using Pulse Width Modulation (PWM) signals. This automation reduces manual work, saves energy, and creates a comfortable thermal environment. The system is simple, compact, and can be used in homes, industries, and embedded applications where temperature control is essential.

KEYWORDS

Temperature Control LM35 Sensor 8051 Microcontroller DC Fan Automatic System Embedded Design PWM Control.

Cite This Article

Padmavati Pise1, Snehal Shewale2, Anha Pathan3, Maithili Shevale4, "Smart Thermal System Using Lm35 Sensor And 8051 Microcontroller," International Journal of Scientific Research in Engineering and Management, vol. 9, no. 11, Nov 2025.

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Publication Date

11/13/2025

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Double-Blind Peer Review

Review Rounds: 2

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The authors declare no conflict of interest related to this research work.

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