FREQUENCY COUNTER
Posted on Feb 5, 2014
Related Circuits
New Circuits
-
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.....
.
By selecting capacitors, various voltages can be obtained from this supply. Notice that C2...
The VLF Converter can be used to pick up signals for the general coverage of shortwave...
The balloon went to 103, 258 ft peak reported altitude. Many items had to be considered for...
This page provided to the domain owner free by Sedo`s Domain Parking. Disclaimer: Domain owner...
This is just my attempt in making the simplest and kinda smallest photovore. Well, it`s not that...
CMOS circuits are known for their low current consumption. This is particularly important for...
The LA3370 is a multiplex IC for FM car stereo, and it has the following 2 functions through its...
Modify a zapper circuit (like the Hulda Clark Zapper) to get two differente frequencies. One...
there are countless applications for use of this hardware. Touch pad, proximity sensors, readout...
This touch controlled musical bell circuit circuit produces a musical tone whenever someone...
EIA/TIA-422 defines a Balanced (differential) interface; specifying a single, unidirectional...
While most commercial grade signal generators offer more than just outputting a sinusoidal...
By configuring a comparator and a transistor to control the oscillator in a charge pump circuit,...
220V AC by Cl buck, VDI rectifier, VD2 regulator and filter capacitor C2, output stable 12V DC...
Circuit shown in Figure 3-120. If the motor capacity is small (less than the rated current 5A),...
characters left: