555 Timer Contest Entry
Posted on Feb 5, 2014
Related Circuits
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.....
.
An isolation transformer and a variable auto transformer, very much like a Variac. Fuse 1...
This project is a miniature, VHF FM (wideband) Wireless Microphone transmitter of the type that...
Notes: LM3909, Capacitor, and LED are Installed in a White Translucent Cap on the Flashlight"s...
This is a Circuits of fluorescent lamp with a power of 40 Watt - The ambit works abundant like...
This easy to construct Handy pen torch electronic circuit and low component count, uses two...
The cell phone shield circuit uses two NE555 timer ICs: One as being a very simple astable...
Remote control tester circuit diagram. The tester is designed around infrared receiver module...
This circuit has been designed to provide a clearly visible light, formed by 13 high efficiency...
In the example above a low voltage (12Vdc) is used to turn on a relay to switch on a 240V ac main...
This design note presents a simple yet feature loaded 16 watt output, universal AC input adapter...
It uses a 555 timer wired as an astable oscillator and powered by the emitter current of the...
To produce a modification that provides automated locking of the Scorpios central locking system...
Here is the circuit diagram of a guitar preamplifier that would accept any standard guitar...
The schematic for this project is a modified version of the CPLD dev board schematic. There are a...
Circuit diagram in the research and design features, are applied on the mobile robot. Therefore...
characters left: