In this project, we will make Audio Controlled LED Circuit using a transistor. In an audio-controlled LED circuit, LEDs turn on and off according to the music. This circuit is simple and efficient, it requires … Read more
Audio Circuits
In this tutorial, we are going to demonstrate an easy and interesting DIY project that is a sound-activated switch. This circuit can activate a relay switch for a couple of minutes when any sound is … Read more
Sound Activated Switch Using LM386 & PC817
Here is an extremely intriguing DIY project of a sound-activated knight rider/LED chaser circuit. The circuit will create a running LED light effect from right to left for a brief time frame period when any … Read more
Sound Activated Knight Rider / LED Chaser
In this DIY project tutorial, we will show you how to fabricate a sound-activated LED deploying an LM386 sound amplifier IC. The LM386 is an all–in–one Class-AB Audio Amplifier IC that can be utilized in … Read more
Sound Activated LED Using LM386 Audio Amplifier IC
Sound Activated LEDs can turn the LED ON or OFF when any of the sound signals are received by the circuit microphone. This is a basic Sensitive Sound Activated LED Flasher. The circuit is very … Read more
Sound Activated LED Flasher Using 2N4401 Transistor
The circuit demonstrated here is an MK484 AM radio receiver with a TDA7052 Amplifier. ZN414 IC has been ‎discontinued scarcely any years prior and now MK484 and TA7642 AM receiver ICs have ruled out the … Read more
MK484 AM Radio Receiver With TDA7052 Amplifier
An Audio Level Indicator (VU meter) or volume unit meter, are electronic devices that display the intensity of any Input audio signal, usually in musical pieces of equipment (Drum sets, mic, electric guitars, amps, speakers, … Read more
How to make Audio Level Indicator – VU meter using LM3914 IC
A Tone generator circuit usually uses the 555 timer IC to produce a range of sounds. Generally, Tone Generator circuits include triangle, square, sawtooth & sine wave generator circuits. Such periodic signals produce a variety … Read more
Simple Tone Generator Circuit Using NE555 Timer IC
Since doorbells are very common in every house. We know that different types of doorbells are available in the market and they produce different types of music or sound depending on their functionality. These doorbells … Read more
Ding Dong Sound Generator Door Bell Circuit using 555 Timer
A single Transistor Audio Mixer Circuit is an important part of audio devices. It is commonly known as Audio Mixer. The circuit is commonly used to mix two or more audio signals in one (mono) … Read more
Single Transistor Audio Mixer Circuit
In this tutorial, we will show you how to make a circuit that produces a “tick tick” sound when powered up. This sound is similar to that of a time bomb that is about to … Read more