Car Alarm and Immobilizer
Posted on Feb 5, 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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This reflex radio project was inspired by Robert Bazian 's design. His reflex radio is the...
This is a simple serial port buffer circuit I designed for a friend to speed up his SLIP...
The base of Ql is connected to the car"s ignition circuit. One side of the piezoelectric buzzer...
The circuit uses the LTC1043 in a variable gain amplifier which features continuously variable...
An Intersil 7101 31/2-digit A/D converter is used to display the duty cycle of a pulse train as...
This allows a TSCM specialist the ability to "blink" a Spectronics bugging device on for a second...
For the most part we live in an analog world and when using a microcontroller, it is often...
Until quite recently spread spectrum techniques were almost exclusively in the military domain....
First section of free-running 7413 Schmitt-trigger oscillator runs at one-third of desired...
There are several sections in this website that you should read regarding track wiring. This...
Circuit shown in Figure 3-157. The circuit can be used motor capacity of not more than llkW and...
As shown in FIG constituted by ISO113 0 ~ 20mA current loop isolation drive circuit. VIN signal...
Circuit, power supply circuit consists of step-down capacitor c1, bleeder resistors R, Zener...
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