IC 2 tones Siren
Posted on Aug 8, 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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The supply voltage should be about +/- 35 Volts at full load, which will let this little guy...
This Project can be used with the three phase Induction motors. The circuit will take the full...
The acoustic filters are met in various points in the sound systems. The knownest application...
This circuit provides about 20 dB voltage gain with a frequency range from 0.5 to 50 MHz. You...
An LF356 op amp is used as a gain amplifier with the output taken across R5, When a full-scale...
Normally mobile batteries have a lifespan of 2-5 years under normal usage. But then we have to...
This optodetector measures the position of the ball by the amount of light transmitted by the...
I`m using regular analog control via pots, though will use digital readouts of voltage/current....
The current sourcing/sinking capability of the I/O pins on Raspberry Pi is quite limited....
This stage begins at the VHF antenna. The incoming VHF RF signal is preamplified and filtered and...
A diode IN4148 temperature circuit is shown. The circuit temperature range - 25-125, accuracy of...
As shown, collected at the scene RTD temperature, it is converted into a voltage by the...
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