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Posts Tagged ‘led display’

Dark-Detecting LED

Here’s a simple problem: “How do you make an LED turn on when it gets dark?” You might call it the “nightlight problem,” but the same sort of question comes up in a lot of familiar situations– emergency lights, street lights, silly computer keyboard backlights, and the list goes on.

Source: http://www.evilmadscientist.com/article.php/nightlight
Thank you.

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Be the first to comment - What do you think?  Posted by admin - May 29, 2008 at 3:17 pm

Categories: Lighting   Tags: , ,

Fading LEDs

Two strips of LEDs fading in a complementary manner 9V Battery-operated portable unit. This circuit operates two LED strips in pulsing mode, i.e. one LED strip goes from off state, lights up gradually, then dims gradually, etc. while the other LED strip does the contrary. Each strip can be made up from 2 to 5 LEDs at 9V supply.

Fading LEDs

Read More Source: http://www.redcircuits.com/Page58.htm
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Be the first to comment - What do you think?  Posted by admin - May 28, 2008 at 12:37 pm

Categories: LED Flasher, Lighting   Tags: ,

Flashing LED with PIC12F629

This is the first example that you should to know how to set output pin. In this example, GPO is set as an output. LED1 will be turn-on when GP0 is set high and LED1 wiil be turn-off when GP0 is set low. This example use 4MHz internal clock.

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Read More Source:
http://www.coolcircuit.com/pic_micro/led_flashing_pic12f629.html

http://electronics-diy.com/

Thank you.

Be the first to comment - What do you think?  Posted by admin - May 27, 2008 at 11:40 am

Categories: LED Flasher, Lighting, Microcontroller   Tags: , ,

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