Sound-modulated light source
Posted on Jan 4, 2013
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.....
.
When computer peripheral equipment is interfaced, it is convenient to work with logic signal...
This 100 watt linear amplifier may be constructed using two MRF309 transistors in push-pull,...
This circuit is presented as an alternative to the IR beam break detector featured in the June...
The circuit is based around the 7805 voltage regulator. It has only 3 connections (input, output...
This infrared alarm barrier can be used to detect persons passing through doorways, corridors and...
Atmega 8535 Color Conversion to Frequency, the technology of instrumentation that can recognize...
This digital thermometer circuit diagram uses a common 1N4148 diode as the temperature sensor....
All optical transmitters will contain circuitry to limit the current to a value that will be safe...
This generally results in a square wave if the frequency of oscillation is low enough relative to...
The 555 astable board uses a 555 timer in its astable configuration. This means that it outputs a...
After building so many Nixie Tube Clocks from the Internet, I finally decided to design my own....
A commitment by the MIC5158 to control tasks, a plurality of external N-channel MOSFET parallel...
characters left: