serendipity
Posted on Feb 4, 2014
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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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A compact, inexpensive and low component count telecom head- set can be constructed using two...
In order that the MonomeSerial software `sees` the monome clone, it`s necessary to change the...
This circuit is a circuit diagram of resource replacement 1. 3V mercury cells or other small...
Here is a circuit Power Amplifier with output power of more than 600 Watt speakers with impedance...
The power transformer has three secondaries: 720V at 120mA center-tapped for the plate and screen...
This was my first published article, and fell out of my work on the homebrew 8008 system that is...
The easiest solution would be to take a cheap wireless toy car take out its receiver module along...
SP6331 SP6333 SP6335 Quad ower Supervisory Circuits are a family of Microprocessor reset...
This is a simple home telephone ringtone generator circuit which is built with applying only...
This SPI Flash Programmer can be used either for in-system programming or as a stand-alone serial...
A newer version of this circuit board is available. Rev 4 includes a faster CPU, more memory,...
This simple circuit will energize and de-energize a relay at the push of a button. Any type of...
As shown in the circuit diagram of the device is looking for 555 cars, including a transmitter...
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