LED and Lightening
Get flash to fully experience Pearltrees
Why not just connect your battery straight to the LED? It seems so simple!
I recently saw the cool mood lamp by Philips and I liked it. What I did not like was the price.
Open Hardware Mood Lamp
Posted by admin on September 07, 2009 Arduino , Projects This is a project I have been working on for the past 2-3 weeks.
The above schematic is 8x8 Led Dot Matrix clock using PIC16F627A (or PIC16F628 which is more expensive but larger memory) and a shift register 74HC595.
LEDs, 555s, PWM, Flashers, and Light Chasers by Bill Marsden, courtesy of http://forum.allaboutcircuits.com/ I'm moving this article to blog format to allow me greater flexability in editing.
This year, for the first time, the efficiency of LEDs has overtaken that of fluorescent tubes.
Find out how to put together a simple but efficient PWM dimmer circuit for LEDs
This webpage describes a highly efficient LED dimmer, or a dimmable LED flashlight, or a switching current source, or whatever you want to call it.