Stereo Led Vu Meter
Posted on May 19, 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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Input terminal VIN is connected to the +V line of tbe circuit that the indicator is to monitor,...
This circuit can produce up to 1 W of audio power to drive a speaker or horn. When the CDS cell...
A timer (LM555CN) and decode counter is used to generate duty cycles from 10% to 100% to control...
The electronic darkroom timer is built around a 555 oscillator/timer, a pair of general-purpose...
The Ambient Power Module (APM) is a simple electronic circuit which, when connected to antenna...
Develop a cheap high-current circuit and still use PWM. Specifically, did I get the flyback...
IC TDA7052 is a mono output amplifier in 8-comng Head DI package (DIP). The device is designed...
This circuit uses just two CMOS IC`s, a 4011 quad 2 input NAND gate, and a 4020 14-stage ripple...
The DIY Electronic Siren circuit described here can create three different US-style siren sounds:...
This low noise microphone amplifier is build with MAT02 produced by PMI. This mic amplifier is...
This project demonstrates a computer control interface using a USB Board. (USB INTERFACE...
Nothing wrong at all with that setup IMO. I`ve an (older) Peltor FMT15 amp in my Golf. Works...
Using a 555 with perhaps a 4029, and I would add a 4511, then connect the pins (using resistors...
22, Ov AC by thyristor VSl ~ VS4 H1-H4 electricity for lights, on the other hand it down through...
As shown by IF processing circuit (MC1350) and video detector MC1330AP combined video circuits....
As shown in FIG OPA111 constituted by the input buffer leakage current measuring circuit. D1, D2...
Diodes VD8 ~ VDI1, SCR vs composition control switch main circuit isolation diode VD7, stable...
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces...
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