Microphone

A microphone, colloquially named mic or mike (/maɪk/), is a device – a transducer – that converts sound into an electrical signal. Microphones are used in many applications such as telephones, hearing aids, public address systems for concert halls and public events, motion picture production, live and recorded audio engineering, sound recording, two-way radios, megaphones, radio and television broadcasting, and in computers for recording voice, speech recognition, VoIP, and for non-acoustic purposes such as ultrasonic sensors or knock sensors.

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Neopixel Led Ring Ornament

“Hi and happy holidays to you all! If you take look at my profile, it’s clear that I’m somewhat of an LED addict. This addiction more or less began a few years ago when tinkering with commonly available …

Sound Spectrum Visualizer with Arduino Nano 33 BLE

“Visualize sound frequencies spectrum with an OLED 128x32 display, Arduino Nano 33 BLE and an electret microphone amplifier (MAX9814). See how a bar graph respond to music and sound in a little OLED display. Lowest frequencies toward the left end …

3D Printed Guitar That Lights Up As You Play

“Several years ago I built a CNC router with the express purpose of creating my own guitar. Unfortunately however, I never got around to it. Two years back I was getting into 3D printing in a big way and started …

Portable Sound Analyzer on ESP32

“Sounds are everywhere and always around us. Whether it is your name spoken by your beloved, a barking dog, music played on television or the horn of a car… Our brain processes sounds through its ability to transform the sound …

A DIY Zipline Robot With Arduino, Lego, and 3D Printed Parts

“Introduction Have you ever thought of robots that are involved in sports and recreation activities? Robots that could mimic the act of athletes like runners and, gymnasts. Such robots are extremely interesting for robotics enthusiasts, makers, and inventors. One of …

Clap-on Switch

“A relative asked me one time if i could create a switch that reacts to clapping your hands. So i’ve orderd some stuff to create a project and decided to make a instructable so everyone could have a awesome …

How to Make Clap ON/OFF Switch || Without Any IC

“This Is A Clap ON Of Switch Without Any IC. You Can Clap First Time Then The Light Bulb ON And Clap Second Time The Light Bulb OFF. This Circuit Based On SR Flip-flop. Components 1. BC547 NPN Transistors (4pcs …

Transistor Microphone Amplifier

“This article shows you how to make a transistor microphone amplifier. The minimum power supply for this circuit is 1.5 V. However, you will need at least 3 V if you are making an optional LED detector (transistor Q3 …

Whistle Controlled Robot

“This robot is completely guided everywhere by whistle, much like the “Golden Sonic Toy” made in 1957. When switched on, the robot moves in the direction indicated by the illuminated arrow on the front drive wheel mechanism. When the whistle …