Sequence timer circuit diagram of 555 chips
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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SPICE is the most commonly used analog circuit simulator today and is enormously important for...
The applet shows a simulation of Chua's circuit, plotting the voltage measured across C1 against...
This mini audio amplifier will test the audio stages in amplifiers such as the front end of FM...
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This circuit shows a simple way to add text information to a composite-video signal that might be...
This DIY 12V to 220V voltage converter is build with CMOS 4047 that is the main component of this...
Inverters U1a and U1b are connected in a simple RC oscillator circuit. The frequency is...
Here is a simple circuit based on IC uA 741 that can be used to pickup voice from telephone lines...
This is the schematic for an FM transmitter with 3 to 3. 5 W output power that can be used...
These two resistors have two functions. One, if I touch the circuit by accident, they limit the...
Idea of this circuit came to me at midnight when my pet dog started barking continuously on...
This circuit uses the popular and easy to find LM3914 IC. This IC is very simple to drive, needs...
As shown, the circuit voltage source VREF excitations sensor bridge. This is a very good...
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at...
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