200 LEDs Christmas Lights circuit
Posted on Feb 16, 2013
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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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This circuit is used to slowly illuminate and fade a pair of red LEDs (light emitting diodes)....
This circuit LED reproduces the first LED sequence at this time used by FISA on behalf of Formula...
The design of solar panel systems with a (lead-acid) buffer battery is normally such that the...
This is the electronic schematic of the homebuilt SONAR. Only one piezoelectric transducer is...
This electronic organ circuit is very simple to construct and is basically an emitter-coupled...
Based on the famous AT89C52 microcontroller, this 500 Khz frequency-Meter will be enough to trace...
This Wildcard requires 8 Volts or greater to be present on the V+Raw power rail. The V+Raw rail...
An Operational amplifier based sine wave generator circuit, it is basically a wein bridge...
This web page presents details regarding the design of a strain gage based load cell that can be...
This is the 6A schematic that was in the bottom of the unit. It is incorrect. These units have...
As shown for the OPA37 constitute a low-noise preamplifier. Input signal is applied...
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