Halloween lights

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Craig.Stevens

New Member

• Oct 16, 2009

• #1

Hello anybody,

I am looking to make glowing eyeballs for our halloweeen display.
2 Lightbulbs 25-40 watts. Oscillating from about 20% to full brightness every three seconds.

Any prefab circuits out there I could use?

What do you think I would call this kind of circuit?

I do have electronics background - but I do not really use it very much.

Thank you.

 

Last edited: Oct 17, 2009

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HarveyH42

Banned

• Oct 17, 2009

• #2

I'd have to guess that these are 110 VAC bulbs. Haven't seen anything like that. DC powered lights would be simpler, safer too.

 

C

Craig.Stevens

New Member

• Oct 17, 2009

• #3

DC works for me.

Got any circuits i can use?
Thanks

 

MrDEB

Well-Known Member

• Oct 17, 2009

• #4

I have a PIC program

that controls 3 LEDs using PWM.
could be converted to 2 LEDs or 4 LEDs very easy.
uses a 18F1320 PIC, written in swordfish.
code as is resembles a candle

 

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HarveyH42

Banned

• Oct 17, 2009

• #5

Here is an oldie, but works good, using OPamps. If you search the web for 'Fading Red Eyes', you find lots of links to various modifications of this basic circuit, might find one that better suits your needs.

https://www.electro-tech-online.com/custompdfs/2009/10/473-click_here_.pdf

 

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Craig.Stevens

New Member

• Oct 18, 2009

• #6

Thanks everyone I will check it out.