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Tutorial: Simple LED Desk Lamp

Whether for work or leisure, we usually end up spending hours together on a computer. A desk lamp helps enhance efficiency, output, and comfort and help fine tune the atmosphere of...

Light Animations Using Arduino and MATLAB

Light animations are visually appealing and hence widely used for advertising purposes. In this project, we present a MATLAB-based graphical user interface (GUI) approach to control the glowing pattern of a...

Internet of Things (IoT) LED Lamp with Video (Hindi & English)

In this project, we handle the output pin of ESP32 for switching and dimming a DC LED lamp using a local Web server. For a local Web server, we do not need...
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How To Build A Simple Laser Tachometer

Did you know you can use an LED as a light sensor? In this video, the author will show you how to use this phenomenon to build a laser tachometer capable...
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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  

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...
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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...

Little Nightlight

Here we describe a very simple, economical and light-weight automatic nightlight that runs on 230V AC mains and can be used as a deluxe gizmo in the sleeping room of your...

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...
circuit of the LED cube using AT89C2051

4x4x4 LED cube using AT89C2051

This 4x4x4 LED cube for use in science laboratories is very easy to assemble. Its LEDs light up in different patterns, creating mesmerising lighting effects. LED cube circuit and working Fig. 1 shows...

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