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“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 …
“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 …
“Hello! In this instructable I will be showing you the process of creating this audio-reactive, rainbow flute (known as a Bansuri). The flute has RGB LEDS inside and will change it’s color based on the note played. Note that …
“This tutorial will explain how to build an Audio Visualizer with an Arduino Uno and some addressable LEDs. This is a project I’ve been wanting to do for some time now because I’m a sucker for sound reactive …
“Detecting music notes from the audio signal is difficult to do especially on Arduino due to limited memory and processing power. Especially when the note is not a pure sine wave, which is generally the case. If we take the …
“Why would you want to look at those tiny led displays or those small LCD’s if you can do it big? This is a step by step description on how to build your own Giant sized Spectrum analyzer. Using …
“In this Instructable I’ll show how to make a Sound Meter using an Arduino and some more components. This is a school project I did recently which took me a year to complete, it is based on the construction …
“This project shows an Arduino project that displays the approximate frequency as well as the musical note played on an electronic keyboard or piano app. For this project, the analog output from the sound module detector is sent to the …
“Just the other day, I was in the middle of a very important phone call when my banana phone stopped working! I was so frustrated. Thats the last time I miss a call because of that stupid phone! (In hindsight …
“In this project I will show you how to use generic 433MHz RF modules from Ebay in order to create a functional Walkie-Talkie. That means we will compare different RF Modules, learn a bit about a class d amplifier and …