Tone ringer
Posted on Nov 24, 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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The approaches using on-chip A-to-D converters on AVR, PIC, and Cypress controllers reached...
Have an old hard drive that no longer works? As long as it still spins up chances are you could...
The circuit was designed to work with an audio power amplifier which operated off +18v-0v-18v...
Every electronic gadget primarily needs a D. C, power supply to energize it. It also forms the...
The multimeter should be set to the lowest dc volts range for maximum sensitivity. This is...
The problem is when i connect the 8051 to the encoder the data send is not received at the...
Here is the circuit diagram of an FM transmitter using the IC UPC1651. UPC1651 is a wide band UHF...
The following document will provide information to develop your own VACI (Vehicle Accessory...
The first attempt used a small flyback from an old computer and a simple driver based on a 555 IC...
On the poles, the plane of the pendulum swing would make one rotation each day. On the equator,...
This machine`s playfield features a catapult that fires the pinball, trolls that pop up from the...
Used a 12V motorcylce Battery and an ignition coil of a car. A microcontroller produces some...
The South Africa company, which has developed the 5 kilowatt Fuel Free Generator, has discovered...
The TNT Convertus has been one of my favorite designs. It was probably one of the first DAC DIY...
As shown, still work in the case of unknown polarity of the voltage or the power supply polarity...
EPSON PHOTO 830U printer power circuit It shows EPSON PHOT0 830U printer power supply circuit,...
In this page we will show how you can simply construct such a meter, which is good to have one,...
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