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Author Topic: Ambilight with Arduino Mega  (Read 5417 times)
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That pcb/kit might be perfect for it.  The shiftbars would work well too.

The ledpainter uses a 15 dollar board, and 3 5 dollar texas instrument IC's...among a pile of other components, and might not support much current on each channel (no led bars probably)

The shiftbar is about 9 bucks a piece in small quantities, you would need 1 per led bar 'channel', somewhere between 2 and 8.

For a realistic amblight you only really need 2 channels for the effect (left and right), and more just amplifies the effect.  '4' bars would be perfect, 2 sides and 2 on top, which would mean you just use the built in arduino mega pwm.

You hook up a 12 volt source to transistors (mosfets if you start drawing more power), and use 5v from the pwm lines of the arduino to switch the transistors (or mosfets) on and off.
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Thanks for the reply Frollard,

Actually on the LED Painter's website, they show that the pcb works fine with LED bars/strips: http://www.brilldea.com/product_LEDPainter.html

You sound like you have experience regarding Ambilight, do you think having more than 4 is overkill? For some reason, I feel having at least 8 (2 on each sides) would be the perfect number.

Al
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maybe this is a good solution
http://code.google.com/p/ledstrip/

take a look
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Thanks DrLabel. That was actually the first project I saw and wanted to replicate, but there isnt sufficient amount of information for me to further replicate.
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It also looks like that led strip has more than 4 wires, meaning to control individual LED like that, I presume you are required to have like the 6 wires per the example.
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se this links the leds are addressable they use HL1606 :
more links
http://hackaday.com/2009/06/17/addressable-rgb-led-strip/
http://www.synopticlabs.com/blog/?p=97
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Not sure if you noticed it, but all links are referring to the same project. =)
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BUMP!

Im kind of stump and could use some help from some generous and helpful individual(s).

THanks!!
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Arduino Ambilight http://www.compcar.ru/forum/showthread.php?t=5869
« Last Edit: April 04, 2010, 08:27:32 am by RusoFob » Logged

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