Cable-tester
Posted on Oct 27, 2012
New Circuits
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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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Here is a diagram of the internals of the MAX232A. It shows a double charge pump voltage doubler...
The circuit drives the LCD pins with 50% square waves. Each segment on this LCD is connected to...
The remote control transmits encoded signals. Each time a key is pressed, the relevant code is...
The trip point is set half way between the supplies by Rl and R2; R3 provides over 200 mV of...
This includes a 220uF capacitor and two diodes to slow down the switch-on to reduce the output...
This part of my site features a stereo decoder circuit suitable for both my pulse counting FM...
This circuit is intended for children fun, and is suitable to be installed on bicycles, battery...
In the NIXIE clocks that I have built, I did not want to have the big and ugly mains transformer...
The goal of this project is to design and build a full duplex digital fiber optic voice link over...
A very simple and efficiency Lithium battery charger and monitoring system, can be designed using...
This is a new design of a tutorial board based on the popular PIC16F84A microcontroller. It...
Most dimmers use pulse width modulation (PWM) to control the amount of power that is delivered to...
The Shay is equipped with flickering ashpan and firebox lights. These are simulated with LEDs....
As shown in FIG receiver may help patients avoid missing voice in the daytime, only the receiver...
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