Music is not only for ears, it can be seen also. With MSGEQ7 chip we can make music dance in lights MSGEQ7 is a chip made for audio spectrum analysis. It divides audio into 7 frequency bands. Each band gives an output voltage. This voltage can be read by microcontroller. Like Arduino, ESP32, STM32 etc. […]
Audio Circuits
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Arduino Text to Speech Voice Generator Circuit
This project make Arduino speak text. It convert text into speech. In this article we used Arduino UNO board, LM386 audio amplifier, speaker and some components. Arduino send digital voice data and IC LM386 make sound loud. Arduino Text to Speech Voice Generator Circuit is small and low cost project. Circuit Coding: Coding Explanation: Circuit […]
Arduino with Speech Recognition Circuit
This project shows how to control LED with voice using Arduino. We can use speech recognition module with Arduino Nano. It takes voice command. It turns LED ON or OFF based on command. This Arduino with Speech Recognition Circuit is simple project for beginners. Circuit Coding: Coding Explanation: Circuit Working: Parts List: Component Quantity Resistor […]
Arduino Piano Music Keyboard with Memory Circuit
This project is for Arduino Piano Music Keyboard with Memory Circuit. Main parts are Arduino Uno, push buttons, buzzer, LCD and resistors. When button is press then buzzer make piano sound. LCD show note name on screen. We can record notes and play again later. It is small and fun project. Good for learning Arduino, […]
DIY Simple Bluetooth Speaker Circuit
Today music is everywhere and it has become part of our daily life. People like to carry small portable speakers in bag, while travelling or in room. Making our own Bluetooth speaker is not so hard. With small parts like battery, speaker and Bluetooth module we can build it ourselves. This project for DIY Simple […]
AM Radio Circuit using Transistors
This article show how make AM Radio Circuit using Transistors It use easy parts like transistor, capacitor, resistor and inductor. Parts are easy to find and good to learn basic radio frequency RF, catch signals and to make sound louder. Circuit catch medium wave AM signals and changes AM signal to sound and play sound […]