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“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 …
“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 …
“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 …
“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 …
“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 …
“In this project I will solve one of the biggest problems I have with modern movies. The problem is that the conversation volume is way too low in comparison to the music volume. That is why I combined an Arduino …
“An Ambisonic Microphone records audio in multiple directions allowing you to change the direction of where you are listening after recording, sometimes while you are listening. There are several of these on the market but we are going to build …
“This is a complete microphone signal conditioning project. Designed primarily for voice-band applications, this project provides amplification, limiting, variable compression, and noise gate. User-adjustable compression ratio, noise gate threshold, and two different fixed gains optimize circuit operation for a variety …
“Good afternoon, dear viewers and readers. In todays article, I will show you the universal microphone amplifier based on the microcircuit NE5532. The microphone amplifier schematic diagram and printed circuit board (PCB) were developed in Easy EDA online environment. The …
“In this project we will keep it simple when it comes to wireless audio communication. Instead of trying to use an nRF24 or RF modules, we will go back to the old days in which they used AM radios. I …