Hi could some one be kind enough to point me in the direction to

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1

Hi
could some one be kind enough to point me in the direction to run different pattern on multiple strips please. This is what i’m try to achieve

  1. run few patterns identically on all the 5 strings at the start
  2. then 1,3,5 stings will have a solid fill Red and 2,4 strings to have Blue (may be, I will try running different patterns later)
    3)then all start up again.

I managed to use Marks Timecode example to do the patterns and run the way I would like to, with Mark and Marc’s help, thanks again.

tried few ways to address each string in the program but no joy.
any help would be much appreciated.
thank you

please see the link below for the two ways(only the beginning) I have tried to do this

pic show all the strips running the same pattern

ff6219986547126b725df4e7830a6e37.jpeg
ff6219986547126b725df4e7830a6e37.jpeg2048×1158 423 KB

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Other people can help I’m sure, but this might help too: https://plus.google.com/112916219338292742137/posts/FjfHnDP5tPK

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thank you Mark I had a look at this, its for a single strip with two patterns, I will keep trying if any joy I will post it. thanks again.

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The first comment there has some notes on multiple strips, too. Totally same concept.

What have you been able to do so far with your own experimenting?

Anyone else help out?

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Hi Mark I tried the following (with the help of a different example, naming each strip) it compiles and uploaded but nothing happens

this the code

thanks for your kind support.

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What microcontorller are you using? Just curious about SRAM size etc.

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HIi Mark its a nano when compiled its showing around 19,000 bytes used of 32,000
would this not be enough

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Plent of room in the Flash memory for your program – but I suspect not nearly enough room in the RAM for your 500 pixels. Each pixel takes 3 bytes (R G B), and 500 pixels = 1,500 bytes. The whole Nano only has 2,048 bytes, and that has to include space for your data structures, variables, the call stack, globals, etc.

Just as an experiment, try changing NUM_LEDS to 50 – and see if the first half of each string lights up. If so, I think we’ve found the problem.

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thank you, Mark I will try that

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Hi Mark
I have to thank you again for the help you have given me,
yes the issue was memory. I didn’t think that at all. it worked with less LEDS.
I’m going to test this with the teensy 3.1 now.
thank you.

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Hey great! Glad it was “just” RAM!

Your code is off to a good start!

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thanks, that means a lot, specially coming from you. works like a charm with the teensy3.1. I incorporated your “fire2012” as well to this.I will put the final code and some pictures later.