Retrofit LED Tubes For Energy-Efficient Lighting

LED tube lights consume about 60 per cent less power than their conventional counterparts If you still use incandescent or fluorescent tube lights in your office, it is time you switch...
video

How to: Drive LEDs – Easy Constant Current Circuit

Here's a great way to control LEDs in a constant current mode using the TLV431 shunt regulator. Courtesy: Kevin Darrah  

LED-BASED MESSAGE DISPLAY

This LED-based message display is built around readily available, low cost components. It is easy to fabricate and makes use of 3mm red LEDs. A total of 172 LEDs have been...

USB LED Night Light

A typical USB LED bulb shown in Fig. 1 is a 5V, 5W USB-powered solid-state lamp. At the heart of this light bulb is a circular aluminium PCB made with a...

Ultra-Bright LED Lamp

This ultra-bright white LED lamp works on 230V AC with minimal power consumption. It can be used to illuminate VU meters, SWR meters, etc. Ultra-bright LEDs available in the market cost...

Smart Way To Build Smart Street Light Solutions

A significant portion of the national electricity production goes to street lighting. The existing street lighting solution models in different parts of the world are not very efficient and optimised. Due...

How To Make RF Remote Controls?

Radio-frequency remote controls are inevitable. They are now appearing in great numbers owing to better user experience and by overcoming various drawbacks of infrared (IR) remotes including - line-of-sight pointing, short transmission range,...

7×5 LED Matrix Using Arduino

Presented here is a simple 7x5 LED matrix circuit vriven by Arduino Uno (Arduino LED). It can be used to display your name or create any number of patterns. If the...
video

Control your LEDs with your TV remote (Arduino IR Tutorial)

In this project, the author will show you how he repurposed the useless buttons on my TV remote to control the LEDs behind his TV. You can also use this technique...

Display Brightness Control Using Ambient Light Sensors

With more than ever electronic products available today and accessible by consumers, Ambient Light Sensors have become an indispensable component for a variety of design needs. Poor environmental lighting or changing...

Popular Articles