Arduino Light Sensors
Posted on Feb 7, 2014
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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 delay time for all circuits shown has been revised. The optimum is around 100ms - sufficient...
This project was designed and constructed as enhancement to the 0-30V Stabilized Power Supply...
First of all you have to build one cable adapter to connect the female 9pins connector of the...
Use of IR (infrared) light as a method for wireless communication has become popular for remote...
This circuit furnishes an initial voltage of 2.5 V per cell at 25° C to rapidly charge a...
Regulation is provided by taking the rectified output of the sense winding and applying it as a...
Using an NEC70083, this 1296-MHz amplifier delivers about 17-dB gain and around 1- to 1.5-dB...
This circuit takes audio from a receiver that might have a weak CW or tone signal and uses a PLL...
Look for the OSCCON register in the data sheet (as of this edit, page 19). This register, among...
From Figure 1, the host microprocessor (uP) controls the HMC6352 via I2C serial data interface...
The circuit diagram shows two LT1398`s from Linear Technology used to create buffered...
The sound produced imitates the rise and fall of an American police siren. When first switched on...
Aseries combination of 16 LEDs Gives a luminance (lux) equivalent of a 12W bulb. But if you have...
This Sensor circuit was designed as an aid in parking the car near the garage wall when backing...
The circuit remains in stable state until a triggering signal is applied to its input. After...
The inputs of the 74LS153 chip were mixed, which caused the address block decoding to fail. By...
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