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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 circuit is used to measure the voltage on a 12V (nominal) lead acid rechargeable battery...
Photo diode outputs light current that is well proportional to input light power when it is used...
At the heart of the Full-Cup Detector is a 555-oscillator/timer configured to produce a 15-Hz...
This jet engine sound generator circuit is based on the sound generator IC HT2844P from Holtek...
Hey everyone. I am building a keypad lock for a project using a PIC and one of those passive...
A low pass filter is merely a stable state-space system that has an input and spits out an...
While most commercial grade signal generators offer more than just outputting a sinusoidal...
The basic circuit illuminates up to ten LEDs in sequence, following the rhythm of music or speech...
A motorcycle or boat battery that is not needed over the winter is usually charged before being...
This instrument is a computer controlled acoustical angklung designed and build in 2000. In 2006...
The RF Combo (A3016) is a combination of three circuits. Its purpose is to provide circuit boards...
The Schematic has three main parts to it. The Sensor Circuitry where the accelerometer is wired...
3-wire interface to the AD7714 can be equipped with a variety of microcontrollers (including...
4000 Series 4011B is (NAND gate) by the 4AI NAND gate circuit group to form two loops unstable...
As shown, the two current sources inside the chip (1 foot and 14 feet out) bridge excitation,...
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