Automobile-locater
Posted on Feb 21, 2013
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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Not thrilled with how a computer soundcard drove my 32 ohm Grado SR80 headphones, I decided to...
The total dollars count for all parts is much smaller that the cost of an heavy duty DPDT foot...
This circuit given here can be housed in the box containing the speaker to form a handy...
Create a device that did not rely on gasoline, was simple to operate, could be used as a backup...
M1 is a stepper taken from an old disk drive. There are five pins, i. e. , common, coil 1, 2, 3...
This circuit turns-off an amplifier or any other device when a low level audio signal fed to its...
The Open Source Automation project is free automation software that runs on Windows and requires...
Many excellent ISP (In System Programming) designs exist for 8 bit AVR microcontrollers. However,...
Control pulses transmitted in blanking interval by tv network transmitter are decoded by receiver...
Used in recording signals from active sonar on magnetic tape, for later playback to control...
A circuit to extract and measure the modulated carrier of an Infra Red remote control. Note that...
Circuit shown in Figure 3-69. It applies to require frequent timing control motor reversing...
As shown for the mirror substantially constant current source circuit, wherein VT1, VT2 is...
As shown, the long wire current loop transmission will be introduced radio frequency (RF)...
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