Car Speed limit Alarm
Posted on Jun 22, 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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Built around a 555 timer IC, this pulse generator can be built into a probe for logic
Here`s a circuit diagram for setting the brightness of the light bulb. You simply use the second...
One of the simplest method of metal detecting is by beat frequency oscillator. Basically, the...
Flame, gas and smoke detector for fire alarm. You can combine this circuit with alarm circuit....
Based on NE555 this circuit turns on and off the IC output by a momentary switch. In other words...
Murata Manufacturing Measurement-Based GRH Capacitors Equivalent Circuit Model Schematic Design...
I bought a Doepfer LMK3+ keyboard from a very pleasant chap in Dunedin, via TradeMe, a popular...
This was a small circuit made for driving an Impact counter. The heart being ICL8038. It must...
This example describes use of HS101, HS201 radio transmitter and receiver modules made of...
Here is a schematic of FM, AM/MW and SW antenna amplifier circuit or we can also say it antenna...
However effective a domestic alarm system may be, it`s invariably better if it never goes off,...
The circuit diagram shown here is a very sensitive wireless relay switch that can be used to...
A regenerative radio receiver is unsurpassed in comparable simplicity, weak signal reception,...
Crystal with small CL(7. 0 pF) makes larger oscillation allowance, smaller current consumption...
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