Audio amplifiers have been widely used nowadays to amplify the power output in audio playback devices. A good amplifier will amplify the original sound to a certain greater level and still maintain the quality of the sound that comes out of the speaker. However, a not so good amplifier would interfere with the quality of the sound and thus…
Paper URL: https://www.ijtsrd.com/engineering/electronics-and-communication-engineering/25254/design-and-construction-of-musical-lighting-water-fountain/kyi-phyu-soe
technology journal, open access journal of engineering, peer reviewed journal
This paper presents the design and construction of a musical water fountain system driven by Arduino using Fourier Transform technology. Audio signals were taken from sources such as MP3 player, smart phone, laptop, etc and these signals were first amplified using LM386 IC and then transferred into an analog input of Arduino for FFT processing. To give out signals for DC pump motors, digital output pins was used. With various frequency band, turning on and off the DC motors and LED systems was created the lighting and water spray effects which should go well along with showed music. The response of this foundation is analysed for different audio frequency range and pump motor control was emphasised and, fountain model is designed for domestic usages.
