Clap switch using timer 555
Posted on Jun 28, 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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In this project AT89S52 microcontroller is used for interfacing to various hardware peripherals....
The leads from the transformer to the circuit are quite long (>5m). Apparently the 110V side of...
With the aid of an (old) moving coil instrument it is very little effort to make a simple...
IC LM2917 IC chip is designed specifically as a Frequency to Voltage Converter or Frequency to...
In order to measure the temperature without using the thermometer, thermocouples are the option...
Adding negative feedback to an amplifier, especially a vacuum tube amp is not as easy as it may...
It provides a means of temporarily silencing a battery-powered smoke detector after you`ve burnt...
Insulated-gate bipolar transistors (IGBTs) require full protection to avoid damage and failures...
The RF engineer sometimes has to look for an instrument that will check a low frequency quartz...
The first schematic is for those who never buy parts anywhere but Radio Shack. You can walk in...
The AD322 is an 8 amp G-Scale DCC decoder. The notes below may be of benefit to owners who wish...
As shown for the sensitive frequency demodulation circuit. The circuit uses IC LM565...
As shown for the test circuit with feedback factor of 1/83 DA6101Q/6111Q is. f input signal...
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