Content for Microphone

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.

ESP WiFi Spy Microphone (ESP32 and ESP8266)

“I recently have updated “ESP WiFi Microphone” project to rev 1.3 and now the revision 1.4 is available which is stronger and more stable than rev 1.3. This project is compatible with both of ESP8266 and ESP32 …

Custom Trombone Kazoo Controller for Trombone Champ

“How it works The Time-of-Flight (ToF) sensor measures the approximate distance between the main trombone section (bell brace) and the slider brace. It sends this data over USB Serial to the PC running my custom software, which combines this with …

Sound Reactive Rib Cage

“A hand-carved wooden rib cage with a heart of LEDs. The lights have several modes including a sound reactive heartbeat to the music. Use 3D model of a rib cage to find shape of each rib I chose this 3D …

8x8 Dot Matrix Sound Level Meter

“Previously I introduced Arduino base Sound Level Meter circuit (From hereinafter as SLM) circuits using simple LEDs. This time let’s change the visual effect with a more multifunctional 8x8 LED dot matrix display. Although the previous SLM used Adafruit …

Inexpensive Microphone amplifier circuit

“A small microphone amplifier circuit using operational amplifier in single power supply mode. Thinking a little bit on audio recording device, Mic section attracted my attention. In mobiles inbuilt amplifier is enough to record the sound via external microphone. That …

Sound Level Meter

“This is a sound level meter circuit consisting of an electret condenser Mic, pre-amplifier circuit using NE5534/TL071 and LM3915 bar/dot display driver chip. According to the sound pressure captured by Mic, this device shows sound levels with LEDs …

Voice-Activated LED Strip for $10: Pi Pico and Edge Impulse

“Build a voice-activated LED light strip controller on the cheap with Raspberry Pi Pico. LED light strips, sometimes called “Neopixels” in the maker community, are the perfect choice for interior lighting. They’re easy to install, inexpensive, and are completely …

100 LED Oscilloscope

“This is my next build using LED matrix’s. You may have seen my last one - 81 LED Chaser, well this project uses 100 LED’s and is an oscilloscope! Admittedly, the resolution isn’t great for checking measurements (it …

Conversation Face

“You are alone? Maybe in quarantine? Need someone to talk to? Or just a friendly listener? Or do you want to have a nice argument? Your robot needs a cute face? Conversation face can help you. Supplies: - Arduino nano/Wemos …

Simple DIY FM Transmitter

“Ever wondered how come you can just simply tune in to your favorite FM Radio Channel. Moreover, ever had the curiosity of making your own FM Station on a specific frequency? Well if the answer is Yes to any of …