Pocket-sized device to help Xin
Posted on Mar 28, 2007
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 circuitry for a hot swappable PCI slot on a motherboard or backplane is shown in Figure 1....
Using a switch to power up your microcontroller projects may not be a good idea if you need to...
The power supply, with electronic stabilisation - mainly those of laboratories - it should they...
The circuit shown will switch on and off a resistive or inductive load up to 800VA with the...
The device serves to quickly establish the status of an indicative power cells. I built it for...
This circuit generates sinusoidal, square, and triangle waveforms simultaneously. Set the...
A BA1404 IC is used to generate a complete FM MPX signal. The chip contains all of the necessary...
The following is the diagram of 5W audio amplifier circuit which built using power transistor...
One type of metal detector is a type of beat frequency oscillator (BFO). The methods used in...
The IQ_Mod project illustrates the use of the IQ_Mod_Setup and IQ_Mod_Data components in ADS....
Once you have compiled your C or C+ program into an AVR binary using AVR-GCC, you will need to...
This wiring circuit diagram is design for when you want to give supply to particular rooms in the...
Quartz crystals have the property that their amplitude/phase characteristic repeats itself at...
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