New Circuits
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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 project is exactly what you need. It is simple to construct and can be connected to almost...
This sensitive sound operated switch can be used with a dynamic microphone insert as above, or...
It is a relatively simple circuit, with which we can have optical and sound clue, when we have...
This circuit is basically an op amp with an nal (±10 mV) between pin 2 and 3 and by extra input...
One can transform an ordinary binary counter, such as a 7493, into an up/down counter with mode...
A 555 timer operating in the astable mode generates the driving pulses and two 4518 dual BCD...
The circuit is built around popular CMOS oscillator-cum-divider IC 4060 and small audio amplifier...
This circuit is the variable output switching regulator for general purpose applications. An...
Here is a very useful project of an automatic street light or lamp circuit which can be used to...
In this circuit the intensity of LED will vary in a ramping fashion. The circuit consists of...
The simple indicator presented in this article may be combined, in principle, with any circuit...
Light onphototransistorQ1 (Radio Shack 276-130) produces voltage change across R2 for...
White LED can be used in series or parallel connection, both solutions have advantages and...
As shown in FIG variety of low-frequency waveform generating circuit. The circuit can...
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