8 Led Audio VU Meter
Posted on May 28, 2012
New Circuits
-
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
.
This project is a digital Automatic Gain Control (AGC”) system using a PIC16F876 MCU. The...
One small spot of rain on the sense pad of this bleeper will start this audio warning. It can...
An RF input is applied to the primary of Tl, which applies equal amplitude, opposite phase RF...
With the coupler biased in the linear region by the 10 mA dc bias on the IRED and the voltage...
A power transistor can be used to provide a high powered zener voltage from a low wattage zener....
This is the circuit diagram of laser communication system that transmit the sound or music...
When the motor is connected in this fashion, the netduino activates the transistor, but nothing...
This circuit detects spikes in voltage around 18v. It is used to detect when a battery becomes...
The idea was that you removed the center page from the magazine and cut it into four pieces to...
In that article I wrote about how I used an Arduino to create an interface that would allow me to...
Gray Code. A positional binary number notation in which any two numbers whose difference is one...
This video is a demonstration of reading an analog voltage, computing data, and controlling LEDs....
Ultrasonic Cleaning the main role in the use of ultrasonic cavitation. Role in the sound field,...
Family karaoke 0K lighting design of a variety of methods to control circuit, the control circuit...
Circuit shown in Figure 3 a child opening the main amplifier balanced by the electromagnetic...
characters left: