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-   -   Lighting projects for robots (http://www.chiefdelphi.com/forums/showthread.php?t=38477)

Al Skierkiewicz 07-06-2005 09:38
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)

Kevin Watson 07-06-2005 13:21
Re: Lighting projects for robots
 
Quote:
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.

-Kevin

Al Skierkiewicz 07-06-2005 14:42
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.

JoelP 07-06-2005 17:51
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?

SoftwareBug2.0 11-06-2005 02:01
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.

John Gutmann 20-07-2005 17:21
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

mechanicalbrain 20-07-2005 18:04
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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