Digital circuit touch delay circuit 3
Posted on Mar 28, 2007
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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A fast electronic fuse designed to operate on 230V AC with an adjustable trip current. When the...
This ROM emulator improves the easiness to build/use it by reducing down its function which can...
if the timer is triggered with a continuous pulse train in the monostable mode of operation, the...
As the speed of an electric drill is decreased by loading, its torque also drops. A compensating...
This is essentially the simplest circuit with additional indicator LED`s and appropriate resistor...
This post shares a proximity detector circuit comprising mainly NE555 IC. This circuit can be...
This circuit uses the popular and easy to find LM3914 IC. This IC is very simple to drive, needs...
It can be simplified and you can leave out short-circuit protection if you wish. This circuit is...
Simple CATV Upstream Fiber Optic Receiver Uses DC Pilot AGC. Upstream fiber links in a community...
The second half of the circuit is an inverting integrator. The first op-amp starts with its two...
One is in a leather bag and is model EE-8-A. One or more is in a canvas bag and is EE-8-B. All...
Provides timing in seconds to 99 s, and timing in minutes to 99 min, with 2-digit LED indicator...
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