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  #16   Spotlight this post!  
Unread 07-06-2005, 09:38
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Al Skierkiewicz Al Skierkiewicz is offline
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Re: Lighting projects for robots

Quote:
Originally Posted by mechanicalbrain
in answer to some confusion el lights are just like neon tubes but extremely thin and flexible. mounting neon tubes to our robot had no adverse effects. we had a amazing underglow and we ran a homemade ropelight through our nylon tubing (the type found in computer stores. highly recomended for wire organizing especaily when you need a lot of cable to reach) and it looked amazing.
EL lamps usually have a high voltage AC power supply and I would think that the close proximity with analog wiring might cause some problems for control. Please be careful when handling these devices. (The power supply readiates as well.)

Kevin,
Have you tried connecting a bi-color LED to a PMW output to vary intensity and color? (Assuming that you can reverse polarity of the PWM)
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Unread 07-06-2005, 13:21
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Re: Lighting projects for robots

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Originally Posted by Al Skierkiewicz
Kevin,
Have you tried connecting a bi-color LED to a PMW output to vary intensity and color? (Assuming that you can reverse polarity of the PWM)
Why would you need to reverse the polarity of the PWM'd output? Using a tri-color LED like this one, the idea would be to use three separate PWM'd drivers to drive the three different LEDs contained within the package. By changing the intensity of each primary color, you can derive many different blended colors.

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  #18   Spotlight this post!  
Unread 07-06-2005, 14:42
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Al Skierkiewicz Al Skierkiewicz is offline
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Re: Lighting projects for robots

Quote:
Originally Posted by Kevin Watson
Why would you need to reverse the polarity of the PWM'd output? Using a tri-color LED like this one, the idea would be to use three separate PWM'd drivers to drive the three different LEDs contained within the package. By changing the intensity of each primary color, you can derive many different blended colors.

-Kevin
I was thinking of the bicolor devices that are two colors back to back with one of the diodes reverse wired.
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Unread 07-06-2005, 17:51
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Re: oooh purty

Quote:
Originally Posted by magnasmific
I made a simple one of these for my car's front end. I can send you a schematic if you want. It cost me around $10.00 from Radio-shack.

Knight-Rider all the way.
Doesn't the heat affect the lights?
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Unread 11-06-2005, 02:01
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Re: oooh purty

Quote:
Originally Posted by JoelP
Doesn't the heat affect the lights?
When the light is right in the front of a car, before the radiator, there is not really any extra heat when you're driving.
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Unread 20-07-2005, 17:21
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Re: Lighting projects for robots

el wire would be a waste because in broad day light or even the light in side the competition area and the pits you wouldnt beable to tell they are lit up, it doesnt make that much light they only work best when in complete or near to complete darkness, we tryed it on our drive station and it didnt work
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Unread 20-07-2005, 18:04
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Re: Lighting projects for robots

yeah i figured that out im going to make my own rope light (LEDs + electrical cord = rope light)
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