Digital Lux Meter
Posted on Sep 19, 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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Here the popular 555 timing IC, is wired as a monostable. The timing period is precise and...
This circuit could be used to drive a monostable relay by a singol momentary switch. Powered by...
Oscilloscope measurements of ground noise can be unreliable because noise can enter your circuit...
Itis often required that a signal be filtered prior to sampling. This can be accomplished with...
Have already gone through 3 stages till a few days ago in the developing of street lamp control...
The circuit of a simple triac light dimmer shown below can be used for dimming incandescent...
This is a circuit to test zener diodes. It hooks up to a 120V AC line and boosts the output...
This circuit has been designed to provide a clearly visible light, formed by 13 high efficiency...
This is the circuit diagram of a two channel audio line driver using the high performance dual...
Circuit shown here can be used to jam FM radios in its vicinity. The circuit is nothing but a...
This pdf file shows the schematic diagram of my home-built circuit to drive the PDR-56 probe. A...
Here is an idea for a simple low-cost adaptor that allows a portable FM radio (or MP3 player with...
This document is written in attempt to include everyone interested in serious construction of a...
This very simple circuit uses a transformer, two diodes, a capacitor and an ammeter. To charge a...
Figure 1-102 high-pass filter in FIG. (A), and if we take C1 C2, R1 1/2, then the crossover, H...
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