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Johnny 5 and LedWiz

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RandyT:

--- Quote from: arzoo on October 05, 2006, 09:57:34 am --- I
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Howard_Casto:

--- Quote from: arzoo on October 05, 2006, 09:57:34 am ---Count me in as one who would love to see j5 support for a second ledwiz device.

Anyway, I
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arzoo:

--- Quote from: Howard_Casto on October 05, 2006, 09:15:55 pm ---
The beta supports all 16 theoretical devices.  Color coding by label caption though, that would be a futile effort as most captions are not shared amoungst games and you would have to pretty much manually light each game and in that case there is no point in putting j5 in the equation. 

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That's great to hear that j5 supports multiple devices!  :cheers:
As for the color by button function - I agree, this would have to be configured on a game by game basis. In fact, pm lets you do just that. I just thought that for the couple dozen games that I really like to play, I would set up the color file. I'm just trying to figure out a way to make good use of the rgb buttons!

Howard_Casto:
well j5 supports a colors.ini, it's just one doesn't exist yet.  The idea is to document the colors of the actual buttons used on the arcade machine. 

digitaldj:
You guys have been talking about mixing colors from the rgb leds and there is a complete science to this. First off alot depends on the rgb led specs, second the frequency of the pwm cycle(which pwm is not the best choice) and third the operating voltage. The operating voltage makes a big difference, i know you think i'm crazy but they are current devices but depend on voltage for the current range(ohms law). Here is a good example to develope white from rgb led at 12volts the red led will be set to 20ma but green and blue will be at app. 10ma(so you loose some current range compared to red), at 5 volts red set at 20ma the green and blue app. 5ma. Green and blue being at totally higher wavelenghts then red of coarse appear alot brighter. I am designing a lighting system for my juke and the processor board runs the leds at 5volts so for me to get a great color spectrum i have added a extra red led to the rgb to get the red brightness up so i can get the green and blue current up and this gives me the current range i need. I typically don't  like rgb leds for projects because of the poor insentity of the red led portion(very big manufaturing flaw). When dealing with rgb leds like i have you have to accomodate for this problem either in the fashion i did by adding the extra red or by the pwm frequency.  Color kinetics deals with some of these problems in their software and is the only company to do this and is patented. You would typically have to design a alogorhythm based on typical rgb specs with maybe some controls for tweaking this.

The other thing is you will never generate the other end of the color spectrum which includes black(which is the absence of color). There is three colors that can generate black but these are not made to my knowledge at least not in a led. I know you're saying i thought he just said black was the absence of color but now we are talking about black as being generated as a artists color. If you are making you own lighting you can use tinted acylic(non glare) and put it over the white. Now the great mystery is how does a TV get black?

Check this out!
http://www.colorado.edu/physics/2000/tv/colortv.html
http://home.att.net/~RTRUSCIO/COLORMX.htm

Additive and Subtractive Color
Televisions, cameras, scanners and computer monitors are based on the additive system of color (RGB), where red, green and blue light projected together yield white. Offset printing, digital printing, paints, plastics, fabric and photographic prints are based on the subtractive system of color (CMY/CMYK) in which cyan, magenta and yellow mix to form black (K).



Jukeman

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