Noise Level Notifier

This paper involves utilizing an Arduino Uno as the primary hardware to measure the sound level in a library. The amount of noise in the region is measured using a sound sensor. The sound sensor signals are amplified using the operational amplifier function of the integrated circuit LM 567. There ar...

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Bibliographic Details
Published in:	E3S web of conferences Vol. 399; p. 4011
Main Authors:	P.M, Dinesh, B, Yogesh Bala, S, Manoj Kumar, R.S, Sabeenian, M.E, Paramasivam, A, Manjunathan
Format:	Journal Article Conference Proceeding
Language:	English
Published:	Les Ulis EDP Sciences 01-01-2023
Subjects:	Decibels Integrated circuits Messages Noise levels Operational amplifiers Sound Transistors Visual perception
Online Access:	Get full text
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Summary:	This paper involves utilizing an Arduino Uno as the primary hardware to measure the sound level in a library. The amount of noise in the region is measured using a sound sensor. The sound sensor signals are amplified using the operational amplifier function of the integrated circuit LM 567. There are two types of output available: audio and visual. The audio output takes the form of a personalized message that is played over speakers. LEDs are employed to offer visual feedback, with white LEDs used in noise-free environments (sound level 45 dB, yellow LEDs used when sound levels are above 65 decibels, and red LEDs used when sound levels are significantly above 80 decibels). A TIP 220 transistor is used to amplify the signals. A TIP 220 transistor amplifies the signals to create an output for the speaker. There is an audio message that corresponds to each sound level.
ISSN:	2267-1242 2555-0403 2267-1242
DOI:	10.1051/e3sconf/202339904011