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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 large number of intercom stations can be tied together. All units are connected in parallel,...
A negative pulse at the input is fed via capacitor Cl to the input pin (2) of the IC, Pin 2 is...
The MAR-x preamp shown will cover up to 1.5 or 2 GHz with the correct MAR-x IC. ATTN1 should be...
Deep discharge can damage a rechargeable battery. By disconnecting the battery from its load,...
To assure that USB and serial segments are electrically isolated, we used an optocoupler (U1)....
The new version has PCBs available, and is recommended for the best sound quality. If you need...
Circuit detail is shown in figure 3. The main elements of the system are a speech amplifier, the...
This simple circuit senses heat from electronic devices and gives warning alarm. It is an ideal...
A difficult problem in the design of conventional stereo tone controls is obtaining synchronous...
The frequency of a crystal-controlled oscillator is held constant to a high degree of accuracy by...
Magnetic stimulation is a non-invasive method of stimulating the brain and peripheral nervous...
This circuit is a modified version of an original interface on QSL Net. It is a fully isolated...
Circuit shown in Figure. Higher technical specifications of the circuit, is a very good OTL...
Introduction to circuit schematic of the circuit shown in Figure 3-3. Here the 555 connected as a...
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