Question about multiple arrays on one strip...I think Hi,

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Question about multiple arrays on one strip…I think

Hi, I’m a bit stuck and would appreciate any help you can give. I have a strip of 62 leds that I am using to illuminate some figures from the top and bottom. I want to group 6 leds at a time and

a) set a group of 6 leds at once as a group
b) do something nicer than setting each group a single colour.

At the moment I am adding the leds as standard then setting one to a colour, setting the other 5 to the value of the first and then showing.

This results in ugly/long code - I’m sure there must be a more efficient way. Can I define each group of leds once and then address/write to them or a group of groups at once ?

My code (very much wip and not finished) is here…

http://pastebin.com/5730fE6w

Any pointers would be gratefully accepted.

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CRGBArray should help.

Define your leds like this
CRGBArray<NUM_LEDS> leds;

Then you can set colours like this:

leds(5,9)=CRGB(valR,valG,valB);

But, if you need the band of colour to loop round the end of the strip, do it like this:

for(i=0,i<bandLength,i++){
leds[addmod8(startPostion,i, NUM_LEDS-1)] = CRGB(valR,valG,valB);
}

I’ver not tested the code, but hopefully it’ll work

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@David_Stewart1 - Take a look at these two examples:

and

I think they will provide you with the information that you are looking for.

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Hi Jeremy and Ken, thanks to you both for taking the time to reply. I’m off to check out the links you have posted. I’ll post back here when I have made some progress.