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Fading on/off PIR sensor led

 
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Alexius
Newbie


Joined: 26 Nov 2008
Posts: 2

PostPosted: Wed Nov 26, 2008 11:05 am    Post subject: Fading on/off PIR sensor led Reply with quote

Hello,
this is my first post and i am brand new to electronics so please be gentle with me.

I am looking to hook up a couple of leds which turn on when you walk past the device e.g a pir sensor. I want them to fade on and stay on for about 15 seconds then fade off again untill the pir sensor is activated again.

I want to know is this harder to put together than it sounds. Where do i start and what kind of components will i need? thank for your help in advance. Also it has to be relativly small e.g fit inside mouse or small phone shaped device, using as little batteries as possible.
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Turd
HG Ruler


Joined: 18 Aug 2007
Posts: 274
Location: Saskatchewan, Canada

PostPosted: Wed Nov 26, 2008 5:33 pm    Post subject: Reply with quote

This or this would be a good start Very Happy


eric
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Alexius
Newbie


Joined: 26 Nov 2008
Posts: 2

PostPosted: Thu Nov 27, 2008 8:01 am    Post subject: Reply with quote

thanks! ill get one of these and test it out. It looks like the first one comes with a capacitor or something like that?

also how would i go about making the led fade on and stay on for a certain amount of seconds.
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