LED lamp

By Marc de Vinck Instructables user 'computergeek' sent in this Arduino Charlieplexing tutorial. It's a great technique for controlling a lot of LEDs without having to use up all your I/O pins. In this example, only 4 pins are used to control 12 LEDs.

By jakeselectronics So, 0-99mA will light 1 LED. 100-199mA will light 2 LED's and so on. I was thinking of using the LM3914 to drive the LED's, but this means I need to convert the Current to a Voltage. So, I was thinking of using this part; ASC712 Hall Effect Current Sensor

Using a small motor, wire, and LEDs, you can make a really cool LED flasher in a matter of minutes without 555 timers or programing. fr.truveo.com

Learn how to use LED light bulbs in order to conserve energy and save the planet one light a time. www.wikihow.com

Take a tour through the world of the light-emitting diode. Learn - who invented it, how to use it, and how to make your own. A light-emitting ... www.wonderhowto.com

By rss@youtube.com (spyderauto) Author: spyderauto Keywords: spyder sonar Installation how to install Aftermarket car parts guide tail altezza light lights led leds ford f150 f-150 150 04 05 06 07 2004 2005 2006 2007 Added: March 19, 2009

By rss@youtube.com (i7vSa7vi7y) Author: i7vSa7vi7y Keywords: Wii LED LEDs light lights bright blue wiimote nunchuck hack hacks hacking easy mod mods modding modify modified i7vSa7vi7y INSANITY Added: March 17, 2009

By jeno2 I try to build an auxiliary LED brake light driver to my bike using a basic 555 astable circuit. I want it to flash 3-4 times in the first second when the brake applied then hold a steady light until I release the brake. Any idea how to achive this?:confused:

By Collin Cunningham In this installment of the MAKE presents series I explain - how to build a leyden jar, how the capacitor was invented, and how to use one to light an LED. I incorporated some viewer requests from MAKE presents: The Resistor and I'll be adding more in the next installment. Please a comment if the...

By Collin Cunningham From the MAKE Flickr pool Flickr member xmasons shares this easy recipe LED blinkage using a 4060 binary counter chip.

By Kit Eaton We all take LEDs pretty much for granted, but the guys over at MAKE have done a good job with this movie that shows the history behind the little glowing things. Turns out the Light Emitting Diode was one of those devices that was more or less discovered by accident, during an experiment at Mar...

By Collin Cunningham From the MAKE Flickr photo pool ProdMod made this charger/light combo for use with Flip cameras using just 2 AA batteries with a DC step-up circuit - double handy! - ProdMod Video Light and Charger for Flip camcorder More: ProdMod LED Camera Light Kit v1.1

Learn how to make a very powerful led flashlight. Using 2 p7 the most powerful LEDs. Put your sun glasses on for this one. www.articlesbase.com

By Eric Caoili Filed under: How-tos, Controller, Video, HomebrewWii remote modders won't rest until they've installed fluorescent lighting on every button and pad, decorating the controller like some kind of rectangular christmas tree. Today's DIY project adds an LED to the usually unseen B butto...