digital counter circuits
Posted on Feb 6, 2014
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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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This charger will quickly and easily charge most any lead acid battery. The charger delivers full...
This adaptor will capture plots or prints of your GPIB instrument to your PC through the USB...
The preamp featured is very straightforward to make on the PCB, and has an innovative tone defeat...
The NE5561 provides pulse-proportional drive and speed control based on de tachometer feedback....
This amplifier is useful for audio and video applications. Gain is set by Rf and the voltage...
given motor coil while motor need controllers to adjust position and speed. Then you will needa...
Sometimes it is desired to power a circuit from a battery where the required supply voltage lies...
Digital clock project based on the PIC16C54 microcontroller can be designed using the following...
Decoder Tags: PT2262, PT2272, Remote Control, RF-RX-315, RF-TX-315 Remote Control 315MHz by using...
The robot was controlled with a Motorola 68HC11 on a special MC11 input/output board furnished by...
This project consists of a small, portable DJ mixer powered by a 9V dc external supply adaptor or...
This design is based on one published by Milan Lulic in the German magazine elektroModell. Mr....
This circuit is based on the 7240 CMOS programmable timer chip (IC3), which has an accuracy of 0....
This is basically 4 nearly identical debounced switches. The 2 resistors and one capacity at the...
The world`s first practical crystal amplifying device, in 1948, and the dawn of the commercially...
As shown in FIG TDA6106Q test circuit with feedback factor is 1/116. After the input signal Vin...
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