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An Infrared light-emitting diode (IR LED) is a special purpose LED emitting infrared rays ranging from 700 nm to 1 mm wavelength. Different IR LEDs may produce infrared light of differing wavelengths, just like different LEDs produce light of different colors. IR...
Going up or down a staircase can be a challenging task at night, especially for kids and elderly people. This Automatic LED Staircase Light circuit lights up two LEDs, one at each end of the staircase, for a couple...
Meets lighting safety standards and its high efficiency maximises cost savings Ensures protection from overload and short-circuits For quickening the development of LED streetlamps and other medium- to high-power lighting applications, the STMicroelectronics EVL150W-HVSL LED-driver evaluation board and reference design integrates features...
Presented here is the circuit that drives twenty LEDs in a random manner. LED flashers and sequencers are used in decorative lights to give pretty colour combinations by glowing LEDs in random or sequential manner. This flasher has a...
LED lighting is emerging as the natural choice in automotive applications due to its inherent energy efficiency and environment-friendliness. It also enables creative lighting designs that enhance the aesthetics of an automobile. A few years back, LEDs were just an...
LED billboards, screens and other products are getting more popular by the day. LED displays have become an important part of the way modern businesses communicate with their customers. Their high brightness, low power consumption, and longer shelf life...
These thin films come with the benefits of better light reception and electrical conductivity, besides being environment-friendly.  Traditionally, semiconductors made from silicon have been used for creating materials that conduct electricity. Now, scientists from the University of Buffalo, the U.S....
The minuscule LED night marker presented here is an automatic light beacon that wakes up at night, or when there is not enough ambient light in its environment. Anyone active in the dark (walking, riding, swimming, etc) can utilise...
This project turns on and turns off a laser LED after every second. It can also monitor its own supply voltage level. The circuit can be extended for use as an audio-visual alarm system for security applications. Keyes KY-008 laser...
This article describes how to build a 4x4x4 RGB LED CUBE (Fig. 6) that is controlled by Arduino. Cube construction We need 64 common cathode RGB LEDs for our cube. Test all LEDs before soldering. Bend all the leads out 90...