Solar Powered Reading Lamp
Posted on Feb 4, 2013
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 24 watt amp is easy to build, and very inexpensive. The circuit can be used as a booster in a...
The circuit is based on the IC1 that is 555, for the creation of alternate flashes from the two...
This circuit converts frequency to voltage by taking the average dc value of the pulses from the...
Integrated circuit Ul is connected as a low-frequency asymmetrical oscillator. Its output is...
This circuit prevents making transmissions that are too long, which "time out" repeaters and/or...
Place the transmitter about 10 feet from a FM radio. Set the radio to somewhere about 89 - 90...
Today`s electronic systems are in a continuing, evolving design cycle where more smaller, and...
The solar panels are operating at optimal parameters when they are at the perfect right angle to...
This circuit features automatic Exit and Entry delays and a timed Bell Cut-off. It has provision...
The Morse Beepy is a circuit I designed to be simple and cheap enough for kids and adults to use...
Using this circuit, audio musical notes can be generated and heard up to a distance of 10 metres....
You can add as many extra zones as you like to the SCR Burglar Alarm System. The first circuit is...
Shown for the human biological signals preamplifier circuit. In the medical equipment often need...
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