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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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Working on live telephone circuits can be a problem. You just can't connect a normal scope probe...
When the touch plate is contacted by a large object (human body, etc.), stray 60-?? pickup is...
With the wide application of Flash technology on the microprocessor, make the one-chip computer...
Using the UPC1651 FM monolithic circuit can be designed a very simple low cost FM transmitter...
The schematic for this charger is pretty simple. GellCell Battery Charger: circuit to charge a...
This is a circuit that can be used for dark activated means the relay will be activated when...
The aim of this design is to reproduce a Combo amplifier of the type very common in the `sixties...
TDA7000 is a famous FM radio receiver IC also called one chip FM radio receiver covers VHF FM...
The graphic equalizer shown here is based on the IC LA3600 from Sanyo Semiconductors. LA 3600 is...
A low noise circuit equipped with a variable voltage-gain (10 - 100) pre-set, primarily intended...
Built for Birkbeck, the microscope controller is a open source stepper motor driver. It uses an...
555 IC using a delay circuit of the four b They are a jump from high to low transition of the...
Common-emitter amplifier V502, V504, V506 emitter static potential bias voltage forming circuit...
Digital pulse width measurement circuit is shown. It uses a l00kHz reference frequency, the count...
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