Sensors
Posted on Feb 7, 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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T1 steps down AC voltage from 115VAC (or 220VAC) to about 8VAC and is then rectified via bridge...
This is a very simple circuit utilising a 555 timer IC to generate square wave of frequency that...
Can be directly connected to CD players, tuners and tape recorders. Simply add a 10K Log...
The article describes a simple and very cheap to drive white, blue or UV LEDs, used for example...
Photovoltaic (PV) is the field of technology and research related to the application of solar...
I have a 4 position slide switch according to the position of the slide switch, I should turn on...
A microprocessor controlled shutter control-box for electrically driven shutters such as the...
The affection of the ability accumulation is a Tamura 3FD-410 5V bifold primary/dual accessory...
The circuit as shown in the figure employs 14 bi-colour (red and green) LEDs having three...
The diacs, because of their symmetrical bidirectional switching characteristics, are widely used...
The Comtech has become the de facto standard now for those entering the Amateur TV scene. Sadly...
This circuit uses a 1458 dual op-amp to form a radar detector. C1 is the detector of the radar...
Digital output from a microcontroller is typically a low-amperage signal. For example, when you...
Low Voltage Differential Signaling (LVDS) interface is a digital video signal transmission...
9-12V DC power applied to the control point A or point B, for amateur communication receiver IF...
As shown in the audio circuit is commonly used in color television sets (TDA2009) Pin 1: 1.2V--...
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