Automatic-video-switch
Posted on Aug 17, 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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A milliohmmeter is just the tool for checking trace resistance on a printed circuit board,...
A simple, low component count phase locked loop that locks onto and detects the amplitude of an...
The injector is a CMOS oscillator with period approximately equal to 1 x Cl x R2 seconds. The...
This mixer is built around a TL072 dual BiFET op amp with a JFET input stage, and can be powered...
For higher speed applications, up to 1-MHz NRZ, the Schmitt-trigger output HllL series...
Here is a simple SWR protection circuit you can easily build. The directional coupler and...
Building a serial voltage meter to measure from 0 to 5 volts DC is actually pretty easy. Using...
This electronic project is a simple microphone preamplifier based on the LM318 op amp. The LM318...
The system described here is a four motor rotary wing aircraft with 3 inch propellers. The...
As we know its on chip multivibrator means with IC555 one can design astable, monostable,...
This is a circuit of a 12V to 5V converter using a 7805 regulated IC. In the previous article we...
An oscillator is an amplifier with a feedback loop from output to input. Barkhausen criteria...
This circuit of multimedia speakers for PCs has single-chip-based design, low-voltage power...
3F155 circuit shown in FIG. It uses manual control mode. The figure, a self-excitation braking...
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