Waa-waa circuit
Posted on Oct 16, 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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The idea behind this project is to provide some means of loading a program into a PIC that will...
The spark developed by the circuit is suitable for a gas ignitor. Capacitor Cl is charged through...
This electronic motor-speed control circuit is designed to operate in an electrically noisy...
Tone control or pre-amplifier is an amplifier circuit supporters. Sometimes some of us do not...
The approach you have shown would dissipate (12V)(3A) = 36 watts. This is quite a lot of...
After all job of building the prototype and making the sketch work, it`s the time to build the...
A very simple Ionization Smoke Detector with Interconnect and Timer alarm circuit can be...
This circuit uses12V DC instead od mains AC. This is very good idea if you don`t want to mess...
The alarm detector circuit is different from Ultrasonic Alarm (1). In Ultrasonic Alarm (1), an...
A schematic diagram for the remote analyzer is shown. The circuit is powered from a simple 5-V...
It`s well known that many animals are particularly sensitive to high-frequency sounds that humans...
Elements and internal function diagram shown in Figure 9-50, c, i, C2 is the feedback capacitance...
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