555 Touch-sensitive switch circuit diagram
Posted on Mar 28, 2007
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.....
.
This circuit exhibits a 10 V acquisition time of 900 ns to 0% accuracy and a droop rate of only...
The three schematics represent three building blocks for a 10-meter SSB transmitter. Or these...
TDA2050 Audio Amplifier circuit diagram. There is a current environmental protection: the signal...
This project is based on the parametric equalizer proposed by Elektor in the late 80s or early...
Clock and Load functions, with Load being the first function described. U5, CD4013, performs the...
Clock timer uses a PIC16F628 microcontroller to display 3 and 1/2 digit time and control an...
This simple circuit is a two-person game of strategy and speed - and potentially, agility and...
High-efficiency step-down switching regulators for positive voltages are very common, however...
Below shown circuit will be automatically switched ON and OFF during night and morning times...
This is an implementation of the L298 to drive motors and inductive loads up to 4A continuously....
The present reference is a special application of current source IC Type LM334. It has a tiny...
You can get booster for fuel pumps to increase their rating, but is it possible to do anything to...
This is a simple - easy to build - multi-purpose alarm. Build it yourself using stripboard or...
As shown, the circuit uses the Zener diode D1 limits the surge voltage, use four diode rectifier...
Circuit SH-805 made holiday lights controller shown in Figure 2-64, it can be seen from Figure...
characters left: