Car Alarm Arming Beep Canceller
Posted on Jul 14, 2012
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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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There are a number of ways to obtain the low voltages required to run small projects from the...
High quality, noise free, wireless FM transmitter/receiver operates over standard power lines....
Filtered 15 V de is applied to a series circuit consisting of thermistor R2 and parallel...
For higher speed applications, up to 1-MHz NRZ, the Schmitt-trigger output HllL series...
In this circuit, data at input C is amplified by IC2 and then fed to modulator IC1. IC1 g
Ail ultrasonic cleaner is useful to clean certain items. This circuit uses a microcontroller to...
Datagoo is built around the ATMEGA328P, the same processor used by many hobbyists for a variety...
Insulated-gate bipolar transistors (IGBTs) require full protection to avoid damage and failures...
This is an improved version of the Darkroom Timer originally created by Stan Ockers (1999). Some...
The SPDIF monitor is one of the many applications possible with the digital audio interface...
After some more time with the circuit, the variable pot certainly brings in more useful results...
For all of the following tests, we used a high quality signal generator from BlackStar. The...
The FM Remote Control Receiver` (available on this website in Infra-red circuits section) has a...
Circuit works: When the water tank level is lower than said point, F., F2 consisting of RS...
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