Touch delay switch circuit diagram CD4013 composed
Posted on Mar 28, 2007
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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 is used to convert a mono audio signal into a stereo signal that can be panned...
This circuit features an intermittent siren output and automatic reset. It can be operated...
This unit uses a Nicad battery to provide power to an emergency lighting setup. When power...
The RF signal is passed from the antenna through CI to the tuned circuit made up of LI and C2....
The circuit uses Ql to buffer the right-channel balance output while Q2 and Q3 form a VOX...
First thing`s first, what software to use I went with CadSoft Eagle primarily because there are...
Argon and krypton (rare gas) ion lasers find applications in many diverse fields including (1)...
Here are instructions to turn such a tester into a not-so-precise analog display to monitor the...
A motorcycle or boat battery that is not needed over the winter is usually charged before being...
It use the three transistor (2SC945, or 2C1815 or 2SC828) is main Which typical transistor...
Provided only manual recording level control function, when the circuit is in the recording mode,...
This is the over-temperature alarm and a cooling by the CD4011 four NAND gate integrated...
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