Stereo VU Meter
Posted on Jun 3, 2012
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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.....
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This circuit, enclosed into a small box, is placed in the fridge near the lamp (if any) or the...
The intended use of the 24 volts is to power an amplifier that will supply wave forms of up to a...
Here is a circuit that implements phase-control of heaters, adjusting their power smoothly from...
This touch switch does not rely on mains hum for switching-It-can be used with battery powered...
This alarm circuit was designed to monitor a mains-powered smoke detector located in a shed...
Build your own Accurate LC Meter (Capacitance Inductance Meter) and start making your own coils...
This circuit is describes about sensing air flow using microcontroller PIC16C781. In this circuit...
This is an unusual circuit for an ultra-low distortion power amp. According to my original notes...
The orange lines indicate the positive voltage and the yellow lines indicate the negative...
This circuit allows an SPST momentary pushbutton to act as a push-on push-off switch, using a...
This is a small size led flasher built with the 555 timer IC that is powered from 2 x 1. 5V...
The A1301 and A1302 are continuous-time, ratiometric, linear Hall-effect sensor ICs. They are...
The timer circuit shown gives independent control of the output`s on and off intervals, which can...
Commonly used in industrial and mining enterprises power mixer, mixing materials because often...
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