RGB Auto Colour Changing with NAC

Hi All

I am currently programming my first NAC and my client has asked for the RGB Led strip to auto change through the colours during a scene. All the LED drivers are DALI and I am using CBus DALI gateways. I have already programmed all drivers and I have programmed the NAC with preset colour buttons which are scenes (Blue, Green, Red, Yellow, Purple etc) and they can also manually change with the 3 sliders for RGB.

I am trying to figure out the best way to trigger the colour scenes to rotate through the colours on a continuous until the scene is turned off.

Any help would be appreciated.

Regards,

Matt.

 

You need to use the HSV colour space rather than RGB. H is the HUE which is the actual colour and ranges from 0 to 360 degrees. S is the saturation and is the amount of white in the light. It ranges from 0% (gray) to 100% fully saturated. Lower saturations give you the pastel colours. V is the value and is the intensity. I published my HSV to RGB converter for the pascal logic engine here:

https://www.cbusforums.com/threads/hsv-to-rgb-conversion.7152/

You just need to convert it to LUA ! (It's on my list....)

Otherwise, if you just want to keep full intensity and full saturation it's a bit easier. Start with 100% red, gradually add green to 100%. Then gradually remove the red to 0%, then gradually add blue, to 100% then gradually remove green to 0%, then gradually add red to 100% then gradually remove blue to 0% and you are back where you started.

 

Thanks for the info and it will have a look. I was currently planning to just have full intensity and colour to keep it simple (I hope). It's just I can't figure out how to get the colour scene to go back Scene 1 to go through again. My client has a similar setup in there other venue which uses Dynalite and I'm not 100% sure what else has being used.