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Posted on Feb 5, 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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This project is finalized, that means it is no longer experimental. This amplifier, altough...
The circuit presented here is a simple audio/video transmitter with a range of 3 to 5 metres. The...
C ircuit of a new type of remote control switch is described here. This circuit functions with...
The Digi-Tach contains a master-clock circuits (U6)v latch and reset pulse generators...
The monostable period is set for about 1 second, as is the usual case. The induced line hum comes...
This is a variable power supply controlled with PIC microcontroller. There is LCD display in this...
Hydrophone is similar with microphone, except that it is used in underwater environment. Off...
I some cases, a cogwheel ascribe is bare for voltage measurement. Using the alone one operational...
There are occasions when you want to view your video clips taken in your digital camera on your...
This device produces high voltage pulses discrupting muscles and nervous sYstem, leaving anyone...
The ubiquitous 555 timer, (hooked up for variable mark/space ratio, if you build one you`ll find...
TPTG transmitter was transformed into a trendy TNT. You can use your present K-111 power pack for...
In some cases, it is desirable to extend the range of the available control and this circuit fits...
A commercial stun gun circuit which produces about 100KV pulses from a 9V battery is shown in...
As shown in FIG grounds MAX4100/4101 using a capacitive load drive circuit isolation resistor Rs...
Driving at night, when there is a vehicle rendezvous, according to traffic regulations prescribed...
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