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Creating an Audio-Reactive LED Circuit : 10 Steps ...

https://www.instructables.com/Creating-An-Audio-Reactive-LED-Circuit/

Creating an Audio-Reactive LED Circuit: These instructions will help you learn how to construct an audio-reactive LED circuit. Familiarity with electronics and …

Sensitive Sound Activated LED with 2n4401 Transistors

https://circuits-diy.com/sensitive-sound-activated-led-with-2n4401-transistors/

A very sensitive sound activated LED circuit activates LEDs by even detecting distant sounds. This circuit here converts sound energy from …

Audio Conversion to Light LED Circuit

https://circuits-diy.com/audio-conversion-to-light-led-circuit/

The circuit contains three main parts. First, an audio preamplification using transistor Q1. The electret microphone detects the sound …

Simple Musical LEDs Circuit Diagram

https://circuitdigest.com/electronic-circuits/simple-led-music-light

In this Simple LED Music Light Circuit, condenser mic picks up the sound signals and converts them into voltage levels. These voltage signals are further fed into R-C filter or HIGH PASS filter (R2 and C1), to eliminate the noise from the sound. Further a NPN transistor (Q1- BC547) is used to amplify the signals, from the High Pass filter.

Arduino - Sound Sensor (with LED) : 5 Steps (with …

https://www.instructables.com/Arduino-Sound-Sensor-with-LED/

Step 3: Circuit & Connections. 8 More Images. Arduino Sound Detection Sensor. This module allows you to detect when sound has exceeded a set point you select.Sound is detected via a microphone and fed into an LM393 op amp. The sound level set point is adjusted via an on board potentiometer. When the sound level exceeds the set point, an LED on ...

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